Action Porty had done everything right. Nearly £900,000 raised, a clear plan to transform Bellfield's Celebration Hall into a modern community hub, and a community behind the project. Then contractors broke ground and found underground vaults nobody knew were there. Construction costs surged. The original design, including a new mezzanine and lift, had to be scaled back. The shortfall now sits at £130,000, and the organisation is having to regroup in public.

This is not a rare story in Edinburgh. The city sits on centuries of layered history, much of it literally underground. Old town tenements, Victorian-era basements, wartime reinforcements, and the famous South Bridge vaults are well documented, but plenty of Edinburgh's buildings carry surprises nobody has mapped. According to Historic Environment Scotland, more than 8,000 listed buildings sit within the Edinburgh city boundary, and surveys of similar age buildings consistently flag subsurface anomalies as among the most common sources of project overrun. Any organisation, SME, or charity taking on a building renovation in this city should price that risk in from day one.

The practical problem for community groups and small businesses alike is that most funders will support a well-scoped project, but far fewer have clear routes to top up a grant when unforeseen structural issues emerge mid-build. The National Lottery Community Fund does operate a limited discretionary process for project variations, and Historic Environment Scotland's Conservation Area Regeneration Scheme can occasionally flex where listed or historically significant buildings are concerned. But neither is fast, and neither is guaranteed. Business Gateway Scotland advises any organisation managing a capital project to build a contingency line of at least 15 percent into the original budget, precisely because of situations like this one.

For Scottish SMEs running their own premises projects, the lesson is blunt: a structural survey that finds nothing is money well spent. A survey that finds something is money that saves a project. The Royal Institution of Chartered Surveyors recommends a full measured building survey before any significant capital works begin, particularly in pre-1919 stock, which covers the vast majority of Edinburgh's commercial and community buildings. The cost of that work, typically £2,000 to £8,000 depending on the building, is negligible against a six-figure overrun.

Action Porty has not given up. The organisation is actively pursuing additional funding and has the community goodwill to mount a credible campaign. If you are based in or around Portobello and want to support the project, their fundraising page is worth a look. More broadly, Scottish charitable funders including the Gannochy Trust, Garfield Weston Foundation, and Foundation Scotland all accept applications from community organisations facing capital funding gaps, and some run rolling deadlines rather than annual cycles. If your own project is in a similar position, it is worth checking their current guidance before the summer application windows close.