New-build homes now account for just 5.9% of all current residential property listings in Great Britain, with a quarterly and annual decline in stock availability indicating a continued slowdown in the pace of residential new homes supply, according to Property Inspect.

Their analysis of current property listings across Great Britain and its major cities has revealed that new-build supply in Britain has fallen by -0.1% since Q2 2025, and -0.4% since Q3 2024.

Sián Hemming-Metcalfe, Operations Director at Property Inspect, said: "Britain’s housing shortfall isn’t only about how many homes we build - it’s also about how quickly completed homes can reach the market. 

“The current regulatory bottlenecks, while vital for public safety, are creating a lag between completion and availability that’s masking the true volume of housing being delivered. Until regulatory capacity catches up with policy ambition, supply statistics will continue to understate delivery and overstate decline."

Aberdeen has the largest proportion of new-build supply with 12.9% of current listings, followed by Liverpool (8.9%), Edinburgh (7.4%), Swansea (5.6%), and Manchester (5.6%). 

Aberdeen is the only city to post an increase of more than one percentage point, and one of just six cities to record any kind of positive quarterly growth. The other five cities are Leicester (0.3%), Cardiff (0.3%), Portsmouth (0.2%), Bournemouth (0.2%), and London (0.1%).