There's growing demand for changes to building regulations to prevent new-build townhouses from overheating in the summer.
Homeowners from across the nation have seen their townhouses reach temperatures exceeding 50C.
Team Green Architects co-founder Sian Taylor says many townhouse windows aren't built with external shading - adding to summer heat issues.
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Gavin Grey: UK correspondent on Labour's poor showing at the local elections
03:41

Geoff Bertram: energy economist on the Greens calling for the Government to bring down power prices
05:43

Shane Solly: Harbour Asset Management expert on the market reactions to the 'no deal' announcement on the Middle East conflict
03:07