Home Extension Architect Services

Period houses, whether terraced, semi detached or detached are often repetitive in their development pattern. London streets and whole neighbourhoods, for that matter, are defined by their typical house types.

Working with typical and repetitive house types it’s easy to end up with a ‘typical’ extension. Many builders have a tried and tested formula they’ll apply to extension projects. In reality though, there are so many ways to extend historic buildings and we enjoy exploring the endless possibilities with our clients.

Every project is built around you for the way you live. Our process is logical and transparent, involving you at every stage to help shape your space into a true reflection of your lifestyle and values and an expression of our unique process of collaboration with you.

Book a call to discuss your home extension project and we’ll guide you on what’s possible.

Our Capabilities

  • Architectural feasibility studies.
  • Design and visualisation for extensions in all forms including single storey, two storey, roof and basement.
  • Preparing, submitting and managing planning applications.
  • Interior design and visualisation.
  • Project management.
  • Detailed/technical design.
  • Contract administration.
  • Advice on additional consultants as and when required to support project, such as Structural Engineers, Mechanical & Electrical Consultants, Approved Inspectors etc.
  • Advice on estimated budgets and project timescales.
  • Advice on environmental improvements.

Plan Your Home

Leave the details to us as we manage
your project from start to finish;
monitoring the budget, handling
planning permission and liaising with
Do I need an architect for my project?

The short answer to that question is – No. You don’t. There is no legal requirement in the UK to employ an Architect for construction projects. However, home extensions and renovation projects represent large investments in your future wellbeing and the experience and skillset an architect brings will likely add value far beyond the sum invested in their services.

Read more here.

How long does it take to build an extension?

We’re regularly asked about the timeline for residential projects by homeowners which can take up to 11 months before construction work even begins.

We designed an infographic to visualise the answer to this question. View it here.

How much does an architect cost?

Architects fees not only vary depending on scope, project complexity and level of service but also in the methods of their calculation; from lump sums payable at different project stages, to percentages and hourly rates too.

For a typical a rear extension and ground floor refurbishment in London with a construction budget of £200K +VAT, an architect’s fee would be around 13% equating to £26K +VAT. The work up to planning submission would equate to £9,100 +VAT.

Learn more about how architects’ fees are calculated here.


Book a free consultation


We’ll listen to your ideas and give you our informed opinion


We’ll tailor a strategy and scope of service to suit your needs


You’ll receive an initial project brief and a clear mapping out of the next steps, together with our fee proposal

Get in touch to start a conversation

Find out if we are the right architecture practice for your project.

Relevant Projects

Zig-Zag House

A full width rear extension to a London terraced house in the Queens Park Conservation Area.


A large single storey rear extension to a detached house in Bromley, South London.

Gallery House

A two storey rear extension to a Grade II listed London terrace house in Islington.

Client Testimonials

As Featured In:

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