ePrivacy and GPDR Cookie Consent by Cookie Consent Westbourne architects - home extensions for everyday people | Resi

Westbourne architects.
Britain's No. 1

Kensington Gardens may be popular, but wait until people see your new home extension, designed by Trustpilot's highest-rated UK architectural practice.

Save up to 50% off design + planning costs with Resi Ready

Get build-ready in as little as four-weeks

A planning team staffed by ex-council officers

Organise your entire project from one place

Westminster planning application stats

Our planning permission win rate for the Westminster area is as follows:



UK Average


Resi's planning consultant

Danielle Price

Former Wigan Council Planning Officer
Westminster's planning officers

Tristan Goldsmid, Morgan Cheung, Ernie Cheung, Seana McCaffrey, William Philps, ...

24 Number of applications
8 - 259 days Submit to complete time
18 Granted applications
6 Refused applications
9w 6d Average decision time
See if you qualify for Permitted Development

We've had 18 planning applications approved in Westminster

Ground floor Rear

Aldridge Road Villas, W11 1BN

23 Jul '18

Whole house Internal alteration

a Dawson Place , W2 4TJ

08 Mar '24

Loft Mansard roof

Gloucester Terrace, W2 6HT

20 Apr '21

Loft Mansard roof

Gloucester Terrace, W2 6HT

19 Oct '21

First floor Internal alteration

Lapworth Court, Chichester Road, W2 6PJ

21 Sep '23

Loft Mansard roof

Elgin Avenue, W9 2HD

21 Dec '23

Ground floor Side infill

Hillgate Street , W8 7SP

30 Nov '20

Ground floor Rear

Cambridge Gardens, W10 6JD

02 Aug '22

Ground floor Rear

Cambridge Gardens, W10 6JD

06 Feb '20

The above are all actual Resi projects in and around Westminster. Projects have been anonymised in accordance with GDPR data regulations.

Average construction costs for the Westbourne area

In the last year, the construction costs we've seen for the Westbourne area are as follows:



Side Infill




First Floor


Try our Construction Cost calculator

Here's just a few projects we've done near Westbourne

Why people near Westbourne love Resi

Over 8400 homeowners have trusted Resi with their home extensions — that’s more than any other architect in the UK.

Came across Resi in 2017 and have to say their service has been exceptional on all fronts. Prompt...


Ground floor Rear

Alexander Ell

Used to do initial design phase for a loft conversion and internal remodelling. Very helpful in t...


Loft Main dormer

The best out there

I have been with Resi now for over a year and they have looked after me well. They have helped me...


Two storey Side

Luisa Wolf

The planning permission (1st of that kind on my neighbourhood) for the extension of my house was...


Loft Main dormer

Peter Spence

So easy! Previous experience with face to face architect not great. But Resi are so easy to deal ...


Ground floor Rear

Resi are a great investment!

Resi have been great. We knew we needed help and saw a couple of “all in” firms before we found R...


Ground floor Rear

Patricia Ladly

I had my reservations about getting design plans on-line but the whole process has been very prof...


Loft Main dormer


Very impressed with the service and the attention to detail to my requirements. the team were ver...


Ground floor Rear

Freddie White

Great service, easy to use and very fast results, highly recommend. Easy process from start to fi...


Whole house New build

Absolutely Brilliant!

I was recommended to use Resi by a friend of mine. I found the whole process an absolute dream. F...


Ground floor Side infill

You'd be with the numero uno in architecture category on Trustpilot

Be more likely get an 'A-okay' with our 90% planning approval rating.

A dedicated Account Manager to help you through the process's more stressful moments

Keep your project on time & budget with our project management app

Screen-share with your designer, rather than inconvenient home visits

Get intro'd to vetted builders who've been around the (extension) block before

We use bleeding-edge new tech like laser scanners and 3D modelling software

Receive a premium service at an affordable price thanks to our proprietary technology & processes

Builders we work with in Westbourne

Home Republic Limited
7 reviews
Covers Westbourne
39 Resi projects
Fittra Construction
Covers Westbourne
4 Resi projects
BDL Development Ltd
3 reviews
Covers Westbourne
11 Resi projects
N-Vico Ltd.
3 reviews
Covers Westbourne
8 Resi projects
Kovacs Construction Ltd
7 reviews
Covers Westbourne
31 Resi projects
4 You Residential Ltd
Covers Westbourne
6 Resi projects
Check out our vetted builders
Other architects in Westbourne

London Central Portfolio Ltd, Allan Design Studio, Abstract Plans Ltd, SSD Architecture, The Plan Hub, F Line Designs, AGA Associates

Postcodes we serve in and around Westbourne

W2, W1, SW1, SE1, SE11, SE12, SE13, SE14, SE15, SE16, SE17, SE18

Speak to an expert

We’re always up for 30 min phone consultations to help you with your project.