Architecture Practice & Planning Applications in Waltham Forest



We provide a full range of services in the Waltham Forest area including:



  • Planning Application Drawings (including Plans, Sections, Elevations etc.)
  • Retrospective Planning
  • Building Regulation Drawings for Building Control in Waltham Forest
  • Consultancy for Commercial Development
  • 3D Visualisations (Immersive Design)
  • Interior Design
  • Spatial Planning and Layout
  • Feasibility Consultancy

Extension Architecture’s extensive experience building and extending residential homes throughout London has given us a unique insight into the different needs and sensitivities that apply in the various boroughs we have worked in across the city.

Over many years in the business, we’ve found that an in-depth local knowledge is vital for ensuring all design work is in keeping with the aesthetic of the area so it is important that we, as a London architecture practice, make sure that any projects we complete remain sympathetic to the original building designs in the area, so as not to disrupt the traditional character and feel.

Any conservation matters, historical significance or planning restrictions that may become apparent in the early stages of an extension project will be expertly assessed by the Extension Architecture team, and a satisfactory solution found, so that you can be confident that, no matter what the issue, Extension Architecture’s multi-disciplinary team will be able to find a way to create an extension or conversion that nevertheless meets your needs.

With many rewarding projects under our belt, Extension Architecture has successfully achieved planning permission and completed a range of residential architectural projects across Waltham Forest, from a simple single-storey extension to a more complex double storey extension, from a loft conversion to a window elevation. Whatever your unique needs may be, our dedicated team of architectural designers, construction experts, interior designers and planning consultants know the local London borough intricately, so will know exactly what to submit to the local council to successfully and speedily secure the planning permission you require.

Extension Architecture’s expert knowledge allows us to provide a swift progression and a smooth transition, from the first site visit, to planning application drawings and everything else in between, until your dream project is completed to your satisfaction.

Despite moves towards greater integration across Greater London, the individual planning requirements can vary dramatically – and change frequently – from council to council across the London boroughs, hence every member of the Extension Architecture team prides themselves on keeping up-to-date with all the relevant building regulations and planning application criteria for Waltham Forest. Our committed team also ensure they keep abreast of other planning applications granted in Waltham Forest, paying particular attention to which projects receive planning permissions and which do not, along with the reasons why. This dedication to the sector enables Extension Architecture to provide the very highest levels of service to our clients, and allows our architectural designers and planning advisors to provide the very best and most appropriate advice for your unique set of needs.

With Extension Architecture, you can be sure you’ll receive the best and most suitable solution for you, ensuring your own home renovation or house extension in Waltham Forest will be a complete success.


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Our Range of Service in Waltham Forest & London Area

We provide a full range of services in the Waltham Forest area


Our experienced IN HOUSE TEAM of experts are ready to help you and provide FREE planning advice. We are here to help so pick up the phone and call us at 0203 409 4215. Our experience is proven, see our CASE STUDIES to find out what we can do for you!

We can help and give free advice in: Chingford, Leyton, Leytonstone, Walthamstow, Chingford Mount, Highams Park, Bakers Arms, Highams Hill and the following postcodes: E4, E10, E11, E15, E17 and N17.

Residential Service: planning permissions and designs for single/double storey side/ rear extension, basement extension, loft conversion, dormer extension, rooftop terrace. House conversion into flats, window/door elevations. annex/maisonette/conservatory/garage conversion, interior/exterior design, garden design, new build development

Commercial Service: planning permissions and designs for restaurant, bar, cafe, retail shops, stores, hotel. change of use, Planning applications, building regulation drawings.



Side Extension & Loft Conversion in Waltham Forest

Property is a detached Victorian building located in an area with mixed residential and commercial developments.

Double Storey Rear Extension and Loft Conversion in Waltham Forest

The brief for the project included enlargement of a detached house.

Skylight feature for single storey rear extension in Waltham Forest

The project involved a conversion of a semi-detached house in the urban area, into 3 flats consisting of 2 x2 bedroom and 1 x 1 bedroom with existing parking space for 2 cars.

Double Storey Extension for Semi-Detached House in Waltham Forest

Extension Architecture were appointed to extend a client’s family home in order to create more space and suit his busy family lifestyle.

New Build Semi Detached House in Waltham Forest

The brief included design for a newly built semi-detached house with an open space ground floor accommodating the kitchen, living and dinning rooms, as well as three bedrooms.

Roof Conversion in Waltham Forest

We were appointed to produce a number of visualisations for our client for a property, which our Interior Designer re-designed and presented to the client for approval.

Planning application for a Café in Waltham Forest

We are experienced in creatively collating ideas and translating your brief(s) into actualisations with our Architectural and Interior Design experience.

Restoration & Extension of a Mid-19th Century Terrace House in Waltham Forest

The project involved restoration and extension of a mid-19th century terrace house the property is a Grade II listed building.

Architectural Service in Waltham Forest – Process

Whatever your home extension needs may be, from a house or basement extension, to a loft or garage conversion , our friendly and approachable team will be more than happy to provide you with all the advice and help you may need, at every stage of the process. With Extension Architecture and our multi-skilled team of experienced professionals, you’ll never need to go elsewhere to find the specific Waltham Forest expertise you require, because we have it all under one roof. We truly are your one-stop-shop architectural solution.

As well as residential extensions, Extension Architecture also have many successful commercial projects under our belt, and can thus provide our clients with an all-inclusive commercial architecture service, including commercial planning permission and detailed exterior and interior designs for restaurants, bars, cafes, retail shops, stores, hotels and much more. In addition, our committed team can take care of all your commercial architectural needs, whether that be to do with change of use or planning applications or building regulation drawings ; whatever your requirements, we’ll be there as your single point of contact throughout

After many flourishing years in the business, Extension Architecture are incredibly proud of the architectural projects we have successfully completed throughout the London Borough of Waltham Forest, and we’re confident we’ll be able to help you achieve your dreams of a bigger or better home. If you’d like to see specific examples of our work, then why not take a closer look at several of our completed home extension projects on the Case Studies page of the website?

Whatever your home architecture project and wherever in Waltham Forest you’re based, Extension Architecture would love to have a chat with you to discuss your options, so why not get in touch for your free, no obligation consultation? You can contact one of our lovely team by completing the form on our Contact Page and someone will get back to you as soon as possible. Alternatively, please feel free to pay a visit to either our Battersea or Worcester Park offices.


Single Storey Extension

Double Storey Extension

Convert to Flat

Loft Conversion

Basement Extension

3D Visualisation


New Builds

Change of Use