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Dear members, followers, and friends,
As the year draws to a close I’m writing to thank you for your support and send you best wishes for the holiday season and for 2025. Reflecting back, 2024 has seen a huge amount happening here, lots achieved and plenty of planning for campaigns, events and publications yet to come.
A year of firsts
We’ve seen a great variety of buildings listed in 2024 – some of which are pictured below – they cover a wide date range; from a traditional 1915 cabmen’s shelter, to the flamboyant Egyptian-style Sphinx Hill – a recent subject of our “Me and My House” article in the C20 Magazine, only completed in 1999 and now the youngest listed building in the UK. We have also had two notable ‘firsts’ – the first listing of an example of outsider art, and the first C21st designated landscape. Our caseworkers have been busy both pushing for this protection, and ensuring that subsequent changes to buildings preserve what’s special about them. A new and increasing challenge has been providing help and guidance to building owners alarmed to discover that their buildings have the now-notorious reinforced autoclaved aerated concrete (RAAC) as part of their construction, and we continue to focus on the best ways to retrofit buildings to improve environmental performance.
We’ve run more overseas members events than ever before (including trips to Italy, Portugal, and Poland) and we reckon that our hybrid-format lecture programme had over five thousand attendees, with nearly 1000 people coming on in-person tours to buildings with us. In 2025, we’ll have a similarly full programme, both in the UK and going as far as Chicago, and we’re taking the big step of appointing a new staff member to join us here in the office in Farringdon and focus on events for the first time. Please spread the word, and if you think you might like to be that person (3 days a week) please apply.
Looking ahead
It is always hard to predict what lies ahead in terms of future threats and casework (I am sure there will be many challenges), but undoubted 2025 highlights will include three new books published with Batsford – 100 Sports Buildings, C20 Seaside Architecture and Cooling Towers, so look out for those, and for events related to each of them.
We’ll also be increasing our fundraising activities in 2025 – building on the successful launch of our Patrons programme this year, and I’m delighted that newly elected trustee Colin Mitchell has been appointed to lead on that with me and our Chair, Hugh Pearman. We have made very modest increases to our subscription rates for 2025, as we want membership to remain accessible, but this means that – vital though your member subscriptions are to our work – core membership fees now only generate approximately 35 percent of our costs.
If you are able to increase your level of support either by becoming a Patron or by donating to the on-going Elain Harwood Memorial Fund, we would be extremely grateful, and promise that your money will be put to very good use.
With best wishes and a Happy Christmas from all at the Society.
Catherine Croft
This week we said a fond farewell to our Casework Director, Dr Clare Price, who’s off to pastures new at the Church of England. Here she shares some highlights and reflects on an incredible 12 years at the Society.
A huge thanks and the very best of luck from all of us Clare!
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So 12 years after I first climbed the stairs in Cowcross Street to join C20 I am off to pastures new. This is a very bittersweet decision for me to make as this has been the best job that I have ever had – something new every day, always learning, finding unexpected enthusiasms, meeting all sorts of wonderful people. Although it is a cliché, it’s fair to say that no two days are ever the same in the job of a caseworker and it’s certainly been a challenge. I’ve loved the site visits – they are always interesting as you get to see buildings from every angle – and often take in great views from the roofs. I’ve engaged in a huge variety of cases and certainly haven’t won them all – well, very few in the grand scheme of things – but every single one has been an opportunity to raise awareness of the amazing range of architecture that we cover.
Listing applications have been very time consuming, requiring detailed research and hours holed up in the RIBA library, some even paying off! Dunelm House in Durham was probably my biggest challenge from that perspective, only achieving listing after two requests for the decision to be reviewed. The team in the office has changed over my time here – we all share our enthusiasms and enjoy team lunches coming up with novel new campaign ideas – but their support and that of the trustees, members and all our marvellous volunteers has been invaluable and kept me going through all sorts (even a pandemic).
Along the way I acquired a PhD – encouraged to hone my expertise in particular C20 area – and as a result have become the in-house expert on churches casework. It is this skill that has led me away from the Society to the Church of England to widen my interest and to explore Cathedrals and Major Churches as a part of their national team. More casework indeed but on a different scale I suspect. I will continue to champion the architecture from our period just as part of a different context. I shall miss everyone at C20 very much, but will remain in touch and come back for events and to support whenever I can!
Dr Clare Price (@InterWarChurch)
Compiled by her friends Bob Stanley (journalist, author, film producer and member of the indie band Saint Etienne), David Trevor Jones, Emily Gee, Paul Stirner and Jon Wright, C20 Society presents a special musical accompaniment to this months Remembering Elain Harwood event at the Southbank Centre.
Spanning punk, post-punk, folk, art rock and african music, the playlist features many of Elain’s favourite tracks and shows her taste in music was just as eclectic as that in buildings! Click the player below and drop the stylus for 3+ hours of sonic exploration.
David Trevor-Jones – Lifelong friend and Chairman of Cinema Theatre Association
Elain was passionately into music. It was what brought us together in Bristol in 1976. She joined the ‘Ents Committee’, the group of would-be musicians, promoters, roadies (and groupies!) that put on concerts in the Student Union. As a major league Union we could get some quite big names, and being there through the dawn of the punk revolution was a fascinating experience for both of us. It changed Elain’s style and outlook as well as her listening.
On moving to London in 1980 Elain started going to gigs at venues such as The Marquee, The Moonlight Club, The Electric Ballroom and The Clarendon (all now long gone). This was the immediate post-punk period that spawned a whole generation of innovative, thrilling music. It also saw the emergence of world music from its narrow niche and Elain dived enthusiastically into African music, especially the East African guitar bands championed by Andy Kershaw and John Peel.
Most importantly, Elain adopted The Fall very early in their recording and performing career, starting a life-long fandom and special relationship with that band and their music. They were undoubtedly her favourite band of all time. Among Elain’s literary works was a contribution to ‘Excavate – The Wonderful and Frightening World of The Fall’, edited by Tessa Norton and Bob Stanley.
Music really mattered to Elain. Before the pandemic she commenced the huge project of listening to her very large record/cd collection in alphabetical order – I don’t know how far she got or whether she completed it. So she did look back as well as forward in her listening but in recent years she pursued a path into electronic and dance music, and necessarily into the soundtracks for SPIN classes. I am not sure that she revisited the music that she was listening to pre-punk, around the time that I first met her, but she did talk about it in an interview with our mutual friend, the music journalist and author Mike Barnes, for ‘A New Day Yesterday’, his definitive account of Prog Rock. I do know that she maintained her commitments to African guitars and to The Fall (though it ceased to exist as a band/project following the death of main-man Mark E.Smith in 2018) and also to the radio show presented by John Peel’s son. Just as Peel Senior inspired Elain’s musical listening from the start and through the decades of his BBC Radio 1 shows, Tom Ravenscroft continued to do so with his show on Radio 6 Music to the end. Elain’s musical taste was never, ever mainstream!
C20 has created the Elain Harwood Memorial Fund to ensure that her invaluable contribution to the safeguarding of Britain’s remarkable modern architecture and design heritage. The fund will help secure the long-term future of our vital casework and campaigns, while offering new opportunities to young people passionate about heritage. If you’re able to give and want to invest in the future of the Society, please click here for more information.
As the growing crisis around RAAC concrete in schools and public buildings dominates the national news, Catherine Croft provides a handy explainer on this widely used post-war building material.
Any situation which might cause the sudden collapse of a building is clearly enormously concerning, and the safety of people must be the top priority. There is an urgent need to understand where RAAC was used, to examine whether or not it is now failing in each case, and then work out how best to repair or replace every building which requires urgent attention.
We don’t know yet if any of the schools or other buildings with deteriorated RAAC are ones which are either listed, or ones which may have merited listing in the future, but heritage concerns must of course come second to public safety.
What is RAAC and why was it developed in the first place?
AAC is the acronym for “autoclave aerated concrete”, first developed in the 1920s, RAAC, is AAC with added steel reinforcement-hence the “R” at the front. AAC is a special form of pre-cast concrete, that is concrete made in a factory, rather than cast on site, like the very visible concrete of most Brutalist buildings, such as the South Bank Centre.
By aerating the mix to provide a bubbly structure, which has been accurately compared to an Aero chocolate bar, the overall weight of the concrete is hugely reduced. The aeration is caused by a chemical reaction initiated when water is added to the mix. RAAC is cast in steel moulds and then, after it has set sufficiently to be taken out, it is placed in an autoclave in the factory to increase its strength. This heats it under pressure, a process more like firing a clay brick in a kiln than the normal curing of concrete at ambient temperature.
Unlike standard concrete the RAAC mix only includes small particles, and no larger stone aggregate (the small pebbles or chippings which can give normal concrete much of its character). This means that the individual planks and blocks created are much lighter and therefore cheaper and easier to transport to site and lift into place. They also have other advantages, including better thermal insulation, and good sound insulation.
It has always been understood that RAAC elements have less compressive strength than regular concrete ones of the same size, that is they will crush more easily if a compressive or “squashing” load is applied to them. This will have been taken into account in the initial design process, and there seems to be no evidence that this was not the case in almost all instances. The most common use of RAAC was for beams, used in flat roof and floor construction.
Problems
There seem to be a number of specific types of problem emerging:
Other issues which may be problematic, include flat roofs where extra weight has been added to address problems of water ingress. It will also be crucial to take into account the strength of RAAC when adding additional insulation to a building to improve its thermal performance.
Beyond schools, it seems probable that other public buildings from the same period – like hospitals, prisons, libraries, theatres and leisure centres – may also contain various amounts of RAAC.
It has been said that all RAAC in the country has now “exceeded its design life”. This sounds drastic, but many building components exceed their design lives totally safely. It does not seem to have been proven that all RAAC inevitably crumbles apart after any fixed period of time, and estimating future “design life” when making a component, or building a building, is not a precise science. Research needs to be done on RAAC taking examples made by different manufactures, and used in a full range of building types and locations, with good and bad subsequent maintenance regimes.
Parallels
There may be parallels that can be drawn with High Alumina Cement concrete. This was a product popular from 1950 to 1970, but banned after a few well publicised collapses in the 1970s. Subsequent research has shown that the primary causes of these collapses were poor construction details or chemical attack, rather than problems with the concrete itself, and (as the Concrete Centre attests) up to 50,000 buildings with HAC continue to remain successfully in service today in the UK. The financial cost and the environment impact of replacing concrete can be immense, and no doubt there will also be some heritage buildings lost as part of a sensible and proportionate response to the RAAC crisis. But hopefully further research will be able to pinpoint exactly which sets of circumstances require demolition, and which can be addressed by remedial works and monitoring.
To reiterate: RAAC almost certainly will be found in buildings C20 cares about, but making sure everyone is safe must come before anything else.
Catherine Croft is the Director of the Twentieth Century Society and teaches the Conservation of Historic Concrete course at West Dean College.
As C20’s new Chairman – the respected architectural writer and journalist, Hugh Pearman – takes up the post, Director Catherine Croft sat down with him to discuss his own journey in architecture, the future of conservation and C20, and his priorities in the role.
When were you first conscious of your interest in architecture?
As a student at Durham, where I was studying English with a bit of Philosophy. I was at St Chad’s College, which faces the east end of the Norman Cathedral. So, I was surrounded by medieval and Georgian architecture, but also an amazing mix of recent C20 buildings. The Dining Hall at St Chad’s is by the neo-classical architect Francis Johnson, which I only discovered later, but there was also Ove Arup’s Kingsgate footbridge across the Wear gorge to ACP’s jaggedly Brutalist Dunelm House (now listed), and in the other direction the modern-medieval University library on Palace Green by George Pace. These all date from the same period, early 1960s. I am catholic in the architecture I like, perhaps because I loved this jumble of styles coexisting happily.
Were you tempted to study to become an architect yourself?
Not at all! I never thought about it! I can’t draw or design, I always wanted to write.
You were starting out at the end of the 1970s, a period currently generating lots of casework for C20 Society. What was happening in the world of architecture from your perspective?
Architecture was at an interesting point and not many people were writing about it. It was the time of the death throes of one kind of modernism, and the very beginnings of post modernism. Obviously, I couldn’t see that then, that’s with the benefit of hindsight. But all sorts of interesting things were happening—from the Alexandra Road housing in Camden, to neo-vernacular tithe barn ASDAs, everything seemed up in the air.
And how did you break into architectural journalism?
After uni, I took a graduate trainee place at a firm of trade magazine publishers. I worked on a travel agents’ mag for a while, after which the deal was that I could choose from whatever vacancies were on offer elsewhere. The one that interested me was an architects’ newspaper called Building Design, then edited by Peter Murray. I got to be news editor there, then quit to become an in-house editor at BDP of Preston Bus Station fame. My boss was Richard Saxon. While there I started freelancing for newspapers – the Guardian and Observer among them. Finally I went fully freelance, and was lucky enough to walk into the vacant architecture critic position at the Sunday Times. I thought this could never last, but it lasted 30 years, to the end of 2015. Other freelance work continued, and books started to make an appearance.
But I’d always had a hankering to be an editor as well as a writer, and that opportunity finally came when I took on the RIBA Journal in September 2006, retiring in December 2020. Writing for a professional audience is very different to a lay one. You have to speak in different voices. And we always tried to avoid being institutionalised.
I’ll come on to focusing on C20 – I know that you have been aware of our work for a long time, and very supportive of recent battles, including the alterations to the Sainsbury Wing of the National Gallery – but how do you think conservation more broadly is doing at the moment?
I am concerned. It feels as if many hard-won gains are under attack. For instance, since my teens I’ve admired the huge achievement of post-war restoration of canals and navigable rivers, but now the money to keep them going has been slashed to a dangerously low level by the Government . Many conservation organisations have an aging demographic, they are still run by those who had fire in their bellies in the 1970s, and they now need to bring in new blood. Plus in architecture there is definitely a culture wars effect, it feels like a time of retrenchment and uncertainty, and with incomes effectively falling it has become politically expedient to look back to an imagined golden past, to the “right sort of old” and 70-year-old Brutalism, say, is for these people not the right sort of old. They prefer antique-effect. Well, the Society is here for the best neo-geo and all other styles since 1914 too!
So what do you think C20 Society’s priorities should be at the moment?
It’s important that C20 should be seen as studiously neutral, not biased in its style choices. That’s already a strength. And we must never be seen to be in opposition to the architectural profession. Architects are our allies, and C20 has long been advocating for retrofit, which is great. We still throw away too many good buildings and we need to promote good examples of successful reuse, such as (since I’ve mentioned it) Preston Bus Station or the former Herman Miller Factory in Bath (now a campus for Bath Spa University). We need to reach out to more architects, get them on board as members and supporters, and encourage them to talk to us more at pre-application stage when they are altering major C20 buildings.
What about current calls for “beauty”, do you think those voices are helpful, and how should we respond?
In the architectural world the word “beauty” has been claimed by traditionalists as synonymous only with their approach. This is plainly absurd – beauty can be apparent in any style or approach, and is both subjective and mutable. Everything can’t be ‘beautiful’ anyway – that’s like saying everything must be above average. What’s wrong with ‘good ordinary’, in whatever style? Architecture needs biodiversity, not monocultures. Hence my evocation of old and new Durham at the start of this. Good design, better materials and good craft skills are of course vital, but they are not the sole preserve of any one architectural persuasion, as the range of styles of twentieth century listed buildings demonstrates. It’s a bit of a febrile period right now but over time, all this will settle down, as style wars always do. Meanwhile, it’s our job to stay alert lest there are unfortunate casualties of the present faddishness.
How about C20 Society’s recent broad campaigns? Have you followed them and do you think they are working?
Yes, I’ve been particularly struck by the Department Stores campaign—a great response to “The Death of the High Street”. It’s good to see more developers now coming forward with conversion proposals. And I’m very concerned about the last generation of coal-fired power stations with their cooling towers. Drax near Selby is my favourite, I love the way it is an almost symmetrical grouping and how well it sits in the wider landscape. To see all those great industrial landmarks vanish forever would be tragic.
So what will be your priorities as Chairman?
Fundraising, never easy, has to be crucial—we need to be able to do more of what we do, more professionally, and that means being able to employ more staff, pay them properly and give them the resources to deliver. That includes good design, up to date communications and the ability to call in specialist help when needed (for planning inquiries, for instance, or to challenge dubious environmental claims). I’ll be looking to strengthen the board, and looking at ways to broaden the membership, many of whom are already actively involved: our volunteers are the best! I’d like more large architecture and design practices to join us, and I’d like to find common ground with the best property developers, working with them rather than being thought of as only oppositional.
To an extent we have to work ahead of public taste, identifying the best of the recent past at the moment when it may be at its most unfashionable. The raft of Millennium projects will be coming up to their 30-year anniversaries before too long. What and where will be the first 21st century listed building? This is why our members around the country are so vital. You really are our eyes and ears.
Having sat in already on most of the C20 committees and seen the work going on, I’m encouraged by the way this is fun as well as being a serious business. There’s a real joy, for instance, in our caseworkers unearthing a previously little-known gem of a building, or in successfully heading off insensitive alterations. Often it’s a matter of education, of enthusing others. And we have no shortage of enthusiasts.
Hugh’s most recent book is About Architecture: An Essential Guide in 55 Buildings (Yale University Press), 2023, available to order here.
Catherine Croft | C20 Director
One of the most expensive, ambitious and longest running C20 conservation cases the UK has ever seen is finally crossing the finish line. Battersea Power Station closed in 1983 and is at long last open to the public, and I’ve been along to check it out. C20 Society campaigned for literally decades to keep the sadly decaying building in the public eye, to see off numerous highly destructive proposals for the main structure itself, and curb the size and encroachment of the proposed adjacent development on its magnificent setting. We’ve consistently called for sensitive refurbishment and imaginative reuse, for a solution which works with the grain and character of the building, reinforcing its robust character. We campaigned for interim temporary work to make it wind and watertight, to halt decay and buy more time at stages when many felt that restoration was an unrealistic pipe dream. So is it now a triumph? Should it, or could it, have been different or better? And what can we learn from such a long trajectory for the buildings on our upcoming 2022 Risk List?
Firstly the positives. Sir Giles Gilbert Scott’s Grade II* masterpiece remains a London icon. Both the 1935 Art Deco Turbine Hall A, and the more austere fiancé of the 1950s Turbine Hall B have been restored and are filling with shops. Control Room B will be a cocktail bar, set in amongst the original dials. Working alongside Wilkinson Eyre, Conservation Architects Purcell have over seen “cleaning techniques to reverse the ‘patina of neglect’ present from thirty years of dereliction whilst maintaining the desired ‘patina of age and industry.’ They’ve achieved an excellent balance. The brickwork repairs are exemplary, with handmade replacement bricks sourced from the two firms which made the originals, the overall effect striking a good balance between old and new. Although C20 argued that the case for the reconstruction of the concrete chimneys wasn’t conclusive, the replicas are exact and alleviate all ongoing concerns about maintenance. The space in front of the power station is beautifully spacious with great views of the river, and the new tube link makes it easily accessible.
However, how much more we would be celebrating if a more socially beneficial new use for the building itself had been the final outcome, and if the amount of social housing on the site had come anywhere near the levels prescribed for developments in London. The social and cultural success of Tate Modern (Scott’s other London power station, which still remains unlisted) feels like the product of another world, and the comparison takes the edge off Battersea’s success. Battersea is a classy shopping mall, hemmed in by expensive flats which may or may not keep their value. Years of commercial speculation upped the site value and hence the need to maximise profits. Prolonged neglect of the building fabric caused repair costs to soar, and there is still a sense of a better future which might have been.
The lessons for the future must be to look for socially and environmentally sustainable solutions for the restoration of magnificent buildings, and to act fast, to minimise decay and maximise the options for positive conservation.
Interesting to see The Daily Mirror picking up on a story in the Liverpool Echo about the “’Legoland’ estate which went from dream to nightmare in only 15 years”. Noted for its “strange ‘washing machine’ porthole windows,” this was James Stirling’s Southgate Estate in Runcorn New Town (Cheshire).
Both newspapers finish up saying “While Southgate may have been short lived, photos from this bold architectural project still prompt debate over the decision to eradicate such a striking housing development.” Wow—that feels almost enthusiastic, or am I getting over excited? Whereas once a ‘look back” piece like this would have been totally condemning of crazed architectural hubris, and scornfully disinterested in the historic context and the laudable ambitions of such a scheme, something seems to have shifted. Not least, the articles are illustrated period shots of the estate on completion, including attractive furnished interiors with contented-looking tenants in-situ. There are no images of graffiti or vandalism at all. Could this be evidence that a public beyond C20 supporters might be starting to regret the loss of some of the best examples of Britain’s post war architecture? I really hope so.
When it was demolished in the early 90s, The Architects Journal called Stirling’s Runcorn housing “Britain’s Pruitt-Igoe”. The estate had only been completed in 1977 and comprised 1,500 residential units intended to house 6,000 people. Pruitt-Igoe was the 1950s Minoru Yamasaki designed slab-block housing scheme in St Louis, Missouri, whose blowing-up in the 70s was declared by critic Charles Jencks to signal the death of modernism. The British version of this reputedly iconic moment was nearly two decades late, rather less dramatic (no dynamite), and complicated by the fact that “Big Jim” had by that point moved on from modernism/high tech to postmodernism. But his standing as a RIBA Medallist and Pritzker Prize-winner helped make the story, it would have been even better had his impending knighthood been announced already.
For a more in-depth analysis of Southgate, I strongly recommend Hugh Pearman’s article in Flaskbak, not least as this starts out with a gripping account of a case of flagrant indecent exposure in one of those big round windows. He concludes that Southgate was “a project on the cusp of different approaches – stylistically anticipating the postmodernism of the Italian school. while incorporating high-tech elements, and constructionally combining heavyweight and lightweight techniques” which makes it a thought-provoking contributor to a more holistic, and less stylistically siloed interpretation of what was going on in the 70s through 90s.
Pearman’s article is important, too, as he states that “With hindsight, it is clear that all [the problems] could have been put right with better management and judicious alteration. For instance it quickly became apparent that the central band of duplexes in the sandwich, lacking their own gardens and somewhat overshadowed by the projecting apartments above, were unpopular. Accordingly Stirling and Wilford changed the design significantly for the final phase, reverting to homes with gardens at ground level. But revising the earlier phases was a course of action that seems scarcely to have been considered.”
The recent coverage blames the failure on the standard Alice Colman-inspired diagnosis of “deck-access apartments making surveillance difficult which led to problems with criminality”, so not everything is changing, and some of the posted comments are classic “concrete monstrosity-type rants of which this, from “Georgian52”, is my favourite example:
“Absolutely hideous modern architecture. The millions spent on this grey dystopian blandness….It really infuriates me when people say how wonderful these 60s modern housing estates were. The[sic] is one in london [sic], literally the properties are falling apart but people still have to live in them. These brutalist estates never worked and only became breeding grounds for everything you don’t want living in next door. Architects who designed these estates would never have wanted to live in them, themselves so why should anybody else find them decent places to live.[N.B. no question mark here]”
And this one shows equal contempt for both architects and planners, but then rather sweetly contradicts itself: “The architect wanted his project approved at all costs so he came up with some rubbish about it being ‘inspired’ by the Georgian squares of Bath and Edinburgh and the town planners were stupid enough to be impressed by that. Actually, I lived there for almost two years and we had a great time – but it really wasn’t suitable for families.”
Clearly there is still plenty for C20 to be doing, but maybe the Daily Mirror for once brings some cause for cautious optimism?
On the occasion of the release of the paperback version of Shelley Klein’s book The See-Through House published by @vintagebooks, we are delighted to be offering free copies of the book to three, randomly selected, lucky winners from our members and supporters..
To enter the giveaway: head over to one of our social media channels and simply tag a friend who also likes C20 architecture and design in our Instagram or Facebook comment fields of the posts about the giveaway or retweet our tweet about it.
The draw will take place in one week from today. Good luck!
NOTE: the giveaway is organised by the C20 Society and Vintage Books. Facebook, Twitter and Instagram are in no way responsible for its content or the selection of the winners, and the giveaway is in no way sponsored, endorsed, administered by or associated with Facebook, Twitter or Instagram.
Know someone who loves C20 architecture and design? We are launching a new member offer that gives you the chance to nominate a friend to become a C20 Society member and both of you will receive 2 free tickets to an upcoming C20 Society lecture, tour or walk or a C20 Journal from our archive.
To enter, your friend should simply state your name and membership number in the comments box when they join. Example: ‘Nominated by member John Smith, no 12345’.
We will then email you both saying that we have received your friend’s nominated membership and ask you both to let us know which events you’d like a free ticket for or which Journal you’d like to receive.
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