Scotland Now Requires Swift Bricks in Every New Building

Scotland just made swift bricks mandatory for all new construction — a genuinely simple idea that I didn't expect a government to actually follow through on. Swift bricks are hollow building blocks with a small entrance hole built into the facade, giving common swifts a place to nest. Swifts can't land or take off from the ground, so they're completely dependent on cavities in buildings — and modern construction has been quietly wiping those out for decades. Holyrood backed the ruling after years of swift populations declining sharply across the UK. The [Guardian piece](https://www.theguardian.com/environment/2026/jan/28/swift-bricks-to-be-installed-in-all-new-buildings-in-scotland-after-holyrood-backs-ruling) notes this makes Scotland the first part of the UK to put it into law. Each brick costs somewhere between £30 and £50 and fits into a standard build with almost no extra effort — the kind of marginal cost that builders complain about but homeowners will never notice. The interesting engineering angle here is how low-friction the intervention is. You're not redesigning the building. You're swapping one brick for a different brick. Conservation policy usually involves land designations, surveys, lengthy consultation — this is just a spec change in the building regulations. If it works at scale, it's a template other countries can copy without much political heavy lifting. England has been flirting with similar requirements for a while but hasn't committed. Wales introduced biodiversity net gain rules that nudge builders in this direction without mandating swift bricks specifically. Scotland going explicit and mandatory is the right move — ambiguous guidance gets ignored on tight margins, hard rules don't.