
Location
Harrow on the Hill
Sector
Residential
02 / 21
Project Overview
In the heart of Harrow on the Hill, this large detached house demanded internal alterations to open the areas. These were supplemented by two single storey extensions, one each side.
The Challenge
Both new single storey extensions abutted the boundary. The site is located on London Clay and conifer trees with a high water demand align the neighbouring boundary line.
The contractor had priced for trench foundations, however, at 2.5m depth this risked a price overspend and health and safety concerns during construction. PH Design were able to discuss with the construction team the benefits of using a piled foundation. We designed these for the site, making the construction cost neutral and drastically reducing the health and safety risks during construction.

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