Scotland Becomes First in World to Mandate 'Swift Bricks' in All New Homes
Scotland has made history by becoming the first country in the world to mandate the integration of "swift bricks" into the construction of all new homes, in a pioneering conservation measure designed to reverse the dramatic decline of the swift population.
The policy, which was backed by the Scottish Parliament and reported on 24 April 2026, requires all new buildings to incorporate specially designed bricks featuring internal hollows that provide nesting spaces for swifts, a migratory bird whose population has declined by 66% in the last 25 years.
Background
Swifts are remarkable birds that spend most of their lives in the air, only landing to nest and raise their young. They have traditionally nested in the eaves and cavities of older buildings, but the modernisation of the housing stock and the construction of new, airtight buildings has dramatically reduced the availability of suitable nesting sites. The swift population in the UK has fallen by two-thirds since 1995, making it one of the most rapidly declining bird species in the country.
Key Developments
The Scottish Parliament backed an amendment to building regulations requiring swift bricks to be incorporated into all new homes, making Scotland the first country in the world to introduce such a mandate. Swift bricks are specially designed building materials that feature internal hollows mimicking the natural cavities that swifts use for nesting. They are relatively inexpensive to install during construction and can provide nesting sites for decades. Conservation groups have praised the policy as a model for how construction and nature can coexist, embedding biodiversity directly into the built environment. According to The Guardian, the Scottish Greens championed the amendment, with MSP Mark Ruskell describing it as a "historic moment for wildlife conservation."
Why It Matters
The swift brick mandate is a simple yet effective measure that could have a significant impact on the recovery of the swift population. By embedding nesting opportunities directly into new buildings, Scotland is ensuring that the expansion of the housing stock does not come at the expense of wildlife. The policy has been praised by conservation groups as a model that other countries and regions should follow.
What's Next
Conservation groups are now calling on the governments of England, Wales, and Northern Ireland to introduce similar mandates. The Royal Society for the Protection of Birds (RSPB) has welcomed the Scottish policy and is lobbying for it to be adopted across the UK. Developers and architects are being encouraged to go beyond the minimum requirements and incorporate a wider range of biodiversity features into new buildings.
