Expert Planning and Building Regulation Consultants

High quality drawings, tailored to your needs at our low prices

Extension Architecture, Expert Architects London

Benefit from one of the most experienced London Architecture firms

Recent Projects

We specialise in planning applications and building regulation drawings

Are you thinking about a new rear extension, loft conversion or maybe a basement extension? However you are planning to improve your house or develop, Extension Architecture can help.

We provide a personalised service providing everything from measured site surveys to photo-realistic final renders – all of which will assist you to make your plans become a reality.

Our Prices & Case Studies


Single Storey Extension

Double Storey Extension

Convert to Flat

Loft Conversion

Basement Extension

3D Visualisation


New Builds

Change of Use