Masonary House- Double Storey Side Extension- Loughton Essex

Completed Project

This project involved the architectural and structural design of a double storey side extension to an existing three-bedroom masonry residential property. The project included the preparation of all architectural drawings, structural design information and supporting documentation required for both Planning Permission and Building Regulations approval.

The proposed extension successfully obtained Planning Permission, followed by Building Regulations approval, allowing the project to proceed to construction.

The extension was designed using traditional cavity wall construction with 300 mm brick-faced insulated cavity walls. The first floor structure was designed using C16 timber floor joists. During the construction phase, the roof structure was revised to utilise a combination of timber and flitch beams in place of a universal steel beam, providing an efficient structural solution while meeting the project's requirements.

Particular attention was given to the foundation design due to the presence of mature trees close to the proposed extension and the underlying clay soil conditions. Foundations were carefully designed in accordance with NHBC guidance to minimise the risk of future ground movement and ensure long-term structural performance.

The completed extension provides substantial additional living accommodation while blending naturally with the original dwelling. The finished development demonstrates how careful architectural planning, structural engineering and site-specific foundation design can successfully deliver a practical, attractive and well-integrated family home.

Location: Durnell Way, Loughton
Council: Epping Forest District Council

This project involved both internal and external alterations to an existing three-bedroom BISF (steel frame) residential property. The architectural and structural design for this project was carried out as part of our residential design work, resulting in successful planning permission and Building Regulations approval for a significant residential extension.

The proposal included a double storey side extension providing four additional rooms and two shower rooms, as well as a substantial front porch measuring over 8 metres in length and 1.7 metres in width, integrated with the front elevation design.

Due to the steel frame BISF construction, the structural solution required careful consideration. New steel beams and supporting columns were introduced to ensure proper load distribution and stability in line with the existing structural system.

Additional attention was given to the foundation design due to site conditions, including the presence of mature conifer trees within the rear garden and underlying clay soil, both of which influenced foundation strategy and structural approach.

The scheme successfully achieved full planning permission and Building Regulations approval and was subsequently constructed, delivering a functional and well-integrated residential extension.