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Clapham architects.
Britain's No. 1

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

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A planning team staffed by ex-council officers

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Lambeth planning application stats

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



UK Average


Resi's planning consultant

Danielle Price

Former Wigan Council Planning Officer
Lambeth's planning officers

Simone Ward, Zoe Bacon, Danielle Smith, C, Kate Hayler, ...

320 Number of applications
27 - 446 days Submit to complete time
274 Granted applications
46 Refused applications
9w 4d Average decision time
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We've had 274 planning applications approved in Lambeth

Ground floor Rear

Sycamore Mews, SW4 0SY

05 Aug '19

First floor Rear over outrigger

Broadhinton Road, SW4 0LU

27 Jun '24

First floor Rear over outrigger

Broadhinton Road, SW4 0LU

20 Feb '24

Ground floor Wraparound

Venn Street, SW4 0AZ

01 Sep '22

Ground floor Wraparound

London, SW4 6HD

31 Mar '20

Whole house Internal alteration

Edgeley, SW4 6HD

25 Jun '20

Ground floor Rear

Wandsworth Road, SW8 3JD

10 Jun '19

Ground floor Wraparound

Brayburne Avenue, SW4 6AA

09 Oct '23

Ground floor Internal alteration

Littlebury Road, SW4 6DW

01 Mar '22

Ground floor Rear

Cresset Street, SW4 6BN

10 Jun '24

Ground floor Rear

The Chase, SW4 0NP

20 Oct '20

Basement Whole house

The Chase, SW4 0NP

21 May '21

Ground floor Side infill

Killyon Road, SW8 2XS

20 May '24

Ground floor Side infill

Killyon Road, SW8 2XS

24 Feb '23

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

Average construction costs for the Clapham area

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



Side Infill




First Floor


Try our Construction Cost calculator

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

Sternhold Avenue

Sternhold Avenue

Completed 2017
Planning authority Lambeth

Southville Road

Southville Road

Completed 2020
Planning authority Lambeth

Gracefield Gardens

Gracefield Gardens

Loft main dormer
Completed 2019
Planning authority Lambeth

Why people near Clapham 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...


Ground floor Side

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...


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

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