Case Study / Waterproofing 

Hope House, Bath

Waterproofing Listed building at a prestigious development in Bath

Hope House Bath waterproofing
Photo by Acorn Property Group

Set within six acres of parkland, Hope House is a prestigious development of fifty-eight, new homes in central Bath. Featuring the conversion of a majestic Grade II listed building, together with a collection of carefully designed new build homes. Hope House offers luxury and sophisticated living in a city that epitomises elegance, bringing modern and bespoke homes together with Georgian charm.

The listed building on this development had a number of underground vaults that needed to be waterproofed to become habitable areas. MacLennan were approached by the main contractor on this project to come up with a waterproofing solution that could be guaranteed.


Waterproofing listed building in Bath
Waterproofing listed building in Bath
Waterproofing listed building in Bath


When working with listed buildings, a holistic approach is very important to keep the impact on the original building and it’s structure to minimum. MacLennan surveyor suggested the installation of ventilated waterproof membrane.

Cavity drain membrane system was installed by MacLennan technicians, to completely protect the inside of the old vaults of any water ingress. Cavity membrane was expertly installed across the ceiling, all walls and floors, importantly, installing also the inspection ports which are critical to comply with British Standards. Waterproofing system should be maintainable to protect the finishes.


MacLennan designed, supplied and installed waterproofing to the underground vaults of this listed building in Bath making sure the basement area was now Grade 3 of dry and habitable space. All work was carried out within budget and agreed time scales and waterproofed to the highest British waterproofing standards.

All of this was backed by MacLennan’s full installation guarantee and PI cover on the design.

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