Case Study / Waterproofing 

Bibury Court, Gloucester

Waterproofing a grade 1 listed, grand country house.

bibury court, a prestigious hotel project completed by MacLennan

Bibury Court is a grade 1 listed, Jacobean country house that has been in use as a hotel for some time.

With the owner deciding to restore it to it's former glory, MacLennan came on board to Waterproof the existing basement.

As part of the project, MacLennan designed and installed a waterproofing system that would deliver a completely dry environment in the basement level.

Requiring lots of fiddly detailing and a pump/sump system designed from the ground up, we took on the task of coming up with a guaranteed waterproofing scheme to fit the clients every need.




MacLennan have previously dealt with some of the largest grade 1 listed waterproofing projects in the UK, so were more than capable of providing a solution to solve the unique details of this project.

To start, above the recently installed slab floor, our 50mm insufloor insulation was used to mitigage the need for drainage channels to be formed in the main slab.

In order to provide a guaranteed solution , a full Cavity drain membrane System with various bespoke details was then installed throughout the internal spaces in order to safely capture and manage any ingressing water. Wall mounted inspection ports were added so that the drainage can be easily maintained later.

A pump and backup pump were installed in the existing sump chambers, a battery backup system and high level water alarm were the final touch to this system and guarantee the owner will always sleep well during any water ingress.


The waterproofing was completed within budget, on time, allowing the rest of the trades to get in and finish it in a timely basis.

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



"The house was built between 1560 and 1599, and was first extended in 1633 for Sir Thomas Sackville. Later additions have since been made and the 16th-century building now forms the north wing. The Sackville family including their heirs the Cresswells owned it until 1816 when it was sold to Lord Sherborne. Thomas Estcourt Cresswell had the interior remodelled around 1759.

Sir Orme Clarke Bt CBE bought the house in the 1920s along with most of the surrounding Bibury estate from Lords Sherbourne and lived there with his wife Elfrida (née Roosevelt). The House was sold by the Sir Humphrey Clarke Bt in 1963 following the death of his mother but he, and later his son, Sir Tobias Clarke Bt, retained the Court Estate until the 1980s. The northern portion of the estate known as Kilkenny Farm was sold to S. J. Phillips & Sons (Kemble) Ltd who had been tenant farmers to the Clarke family. The house was converted into a hotel in 1968, and back into a private home in 2015."

3d Details

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