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Belgravia architects.
Britain's No. 1

Belgrave Square 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:

Westminster

%

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

Whole house Internal alteration

Chester Street, SW1X 7BB

03 Oct '22

Whole house Internal alteration

Chester Street, SW1X 7BB

09 Jun '22

Airspace New floor

Chester Street, SW1X 7BB

30 May '22

Ground floor Internal alteration

Eccleston Square Mews, SW1V 1QN

26 Oct '21

Ground floor Rear

Tryon Street, SW3 3LG

22 Jan '21

Ground floor Side infill

Paradise Walk , SW3 4JL

17 Jun '22

Ground floor Side infill

Paradise Walk , SW3 4JL

14 Dec '21

Whole house Flat conversion

Horseferry Road, SW1P 2EE

10 Nov '21

Ground floor Internal alteration

George’s Square, SW1V 3QN

07 Sep '21

Two storey Rear

Lawrence Street, SW3 5NF

26 Jun '24

Loft Roof terrace

Eagle Place, SW7 3RG

06 Jan '22

Loft Roof terrace

Eagle Place, SW7 3RG

05 Sep '22

Garage Conversion

Drayton Gardens, SW10 9QU

19 Jul '22

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 Belgravia area

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

Rear

£k

Side Infill

£k

Loft

£k

First Floor

£k

Try our Construction Cost calculator

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

Why people near Belgravia 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...

Ann

Ground floor Rear

Alexander Ell

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

Alexander

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...

Dharam

Two storey Side

Luisa Wolf

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

Luisa

Loft Main dormer

Peter Spence

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

Peter

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...

Helena

Ground floor Rear

Patricia Ladly

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

Patricia

Loft Main dormer

STEVE BOWMAN

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

Steve

Ground floor Rear

Freddie White

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

Freddie

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...

Ayisha

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 Belgravia

Home Republic Limited
4.7
7 reviews
Covers Belgravia
39 Resi projects
Fittra Construction
Covers Belgravia
4 Resi projects
BDL Development Ltd
4.0
3 reviews
Covers Belgravia
11 Resi projects
N-Vico Ltd.
3.3
3 reviews
Covers Belgravia
8 Resi projects
Kovacs Construction Ltd
4.0
7 reviews
Covers Belgravia
31 Resi projects
4 You Residential Ltd
Covers Belgravia
6 Resi projects
Check out our vetted builders
Other architects in Belgravia

Office Ten Architecture, MacAusland Design Ltd, KEVCADS, Orama Architects Ltd, AK Studios - Architecture & Interiors, Patrick Ettwein Architect, Unique Designers

Postcodes we serve in and around Belgravia

SW1, SE1, SE11, SE12, SE13, SE14, SE15, SE16, SE17, SE18, SE19, SE20

Speak to an expert

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