Two-storey Extension, Period House, Chailey

Client brief

To design and build a two-storey listed building extension for a 16th-century house, in keeping with the original style and structure.

About this project

One of the challenges with very old buildings is the marriage of new and old materials, with modern techniques and building standards. Beautiful as they are, 16th-century buildings were not built with energy ratings in mind! It can be really challenging with these types of projects to meet building control requirements and stay in keeping with the property.

For example, one of our first complications on-site was dealing with a 2m deep cellar, right on the site of the extension. We had to go to a 3m depth in wet clay to get the right foundations in.

It was a complex process to get the project underway. Due to its age and the site, it took three years to get the design and planning signed off. Ensuring the design and planning were handled correctly and that the right outcome for the client could be delivered was our primary focus.

The design

For this project, the initial planning came from architect drawings. Imperial Framing & Construction then assumed project management and led from the architect’s plans through to building services sign off.

In creating a seamless two-storey extension for this traditional oak-framed house, the choice of materials and building techniques were key. Both modern and traditional techniques were utilised to deliver the right aesthetic on the outside but create a modern, warm, and stylish home on the interior.

With this style of build, much of the internal timber frames were left exposed rather than wrapped. We carefully selected each timber to ensure they complemented the style of the original side of the house.

This is project is a testament to what can be achieved with period properties and how they can be adapted to modern living and requirements without compromising on style or character.

We have great experience with listed building extension and restoration projects. If you have a listed or period property and are looking at how to extend or renovate it sympathetically, contact us at or call on 01825 740 482.

Traditional oak-framed house extension