Expert Architects & Planning Application Consultants in London

Benefit from one of the most experienced London Architecture firms

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We specialise in planning applications
and building regulation drawings.

Our Prices & Case Studies

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Single Storey Extension

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Double Storey Extension

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Convert to flat

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Loft Conversion

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Basement Extension

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3D Visualisation

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New Builds

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Change of User

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What we offer

Extension Architecture is one of the leading Architect & Planning Consultant practices in London

We specialise in Planning Applications, Building Regulation Drawings, Architectural Design and Project Management. However you are planning to improve your home, we at Extension Architecture are here to help.

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Planning Consultancy

Planning
application

Planning applications & planning proposal support

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Building regulations
drawings

Drawings for full Building Regulations compliance

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Permitted
development

Guidance & advisory on planning-exempt projects

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Change
of use

Specialists to assist in use class changes

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Architect Services

HOME
EXTENSIONS

Innovative residential home extensions & loft conversions

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ARCHITECT DRAWINGS
& DESIGNS

Professional technical drawings to capture critical detail

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NEW
BUILDS

Contemporary and luxurious new build homes

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INTERIOR
DESIGN

Multi-disciplined, cutting-edge architectural design

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Learn about planning permission and applications in your London borough

Planning Consultancy Services
London Councils Planning PermissionMerton Planning PermissionRichmond Planning PermissionKingston Planning PermissionSurrey Planning PermissionElmbridge Planning Permission
Hounslow Planning PermissionSutton Planning PermissionSpelthorne Planning PermissionWoking Planning PermissionGuildford Planning PermissionRunnymede Planning Permission
Kensington and Chelsea Planning PermissionRedbridge Planning PermissionIslington Planning PermissionBexley Planning PermissionBrent Planning PermissionBromley Planning Permission
Croydon Planning PermissionDurham Planning PermissionEaling Planning PermissionEnfield Planning PermissionHackney Planning PermissionHaringey Planning Permission
Harrow Planning PermissionHavering Planning PermissionLambeth Planning PermissionHillingdon Planning PermissionLewisham Planning PermissionCamden Planning Permission
Newham Planning PermissionGreenwich Planning PermissionHammersmith & Fulham Planning PermissionEpsom & Ewell Planning PermissionMole Valley Planning PermissionReigate & Banstead Planning Permission
Southwark Planning PermissionWandsworth Planning PermissionWestminster Planning PermissionWalton Parish Planning PermissionBarnet Planning PermissionBarking Planning Permission
Tower Hamlets Planning PermissionDorking Planning PermissionWaltham Forest Planning Permission

Highly
Experienced
Architects

Our London-based, multidisciplinary team of architectural designers consist of highly talented creatives and technicians alike. We thrive on a challenge and never fail to deliver excellence.

From residential property to cultural buildings and iconic commercial landmarks, our team’s experience spans projects of all description.

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Dedicated
Planning
Consultants

Our dedicated planning team provides a comprehensive range of expert planning consultancy services.

Our extensive planning knowledge and experience will guide you effortlessly through the intricacies of your London borough council’s planning and approval processes.

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Recent Projects

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Roof Conversion, London

Pheasantry Cafe, Hampton

Client testimonials

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Information, Guides & Advice

Visit our Blog
The Definitive Guide to:
How much a House Extension costs in 2018 Double Storey Extension Ideas Cost of loft conversions Converting Single Storey Extension to Double Architect Fees for Extension Work How Much do Plans Cost for an Extension Installing a Downstairs Toilet or Cloakroom in London 10 Tips…
How to Define and Plan your new Home Extension Balcony Planning Permission
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