why not extend down too?

When extending our homes, most of us would think of building outwards or into the loft, without giving a second thought to what lies beneath our feet.

However, by digging down into the cellar or basement, you can create an additional floor running the entire length of your house, and that opens up a wealth of opportunities for a bigger and better home. Here’s how to go about it…

Design Concept

Once instructed we  carry out a full measured survey of the client’s home producing architectural plans and elevations of the original property.

Following client approval of the conceptual design layouts, detailed architectural plans and elevations will be produced for final approval by the client prior to submission to the Local Authority for grant of Planning Consent.

Structural Engineer

Your basement will be designed by a fully qualified Chartered Structural Engineers to a safety standard that exceeds current Building Design Code.

A detailed structural survey of your home will be carried out by a Chartered Structural Engineer following which, the technical design for the works will be finalised.

Complex structural calculations for the proposed design will be carried out resulting in details of reinforcement, concrete and structural steelwork being finalised.

When determining the final structural engineering design solution, full consideration is given to the proximity of adjoining buildings and the need to avoid any type of structural damage to your home and the homes of your neighbours.

Planning Application

As the popularity of basement construction has increased in recent years so has the complexity of the regulatory process enforced by Central London Planning Authorities.

The Architectural Design Team at Cranbrook Basements are experts in the preparation and submission of basement Planning Applications to all Local Authorities but with particular emphasis on:

  • Royal Borough of Kensington & Chelsea
  • City of Westminster
  • London Borough of Camden
  • London Borough of Richmond
  • London Borough of Wandsworth

Technical documentation required by Local Planning Department is likely to include:

  • Architectural Plans & Design
  • Structural Engineering Design
  • Basement Construction Method Statement
  • Construction Traffic Management Plan
  • Eco-Home Assessment
  • Basement Impact Assessment
  • Arboriculture Report
  • Detailed Soil Analysis Report
  • Listed Building Application
  • Design and Access Statement

The professional presentation and submission of the Planning Application together with our ongoing dialogue with Central London Planning Authorities is likely to lead to a successful outcome of the basement Planning Application