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Dulwich architects.
Britain's No. 1

Dulwich Park 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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Southwark planning application stats

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



UK Average


Southwark's planning officers

Becky Lambert, Alex Lambert, Liam Bullen, William Tucker, Megan Stevens, ...

218 Number of applications
0 - 212 days Submit to complete time
206 Granted applications
12 Refused applications
8w 1d Average decision time
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We've had 206 planning applications approved in Southwark

Whole house Internal alteration

Dulwich Common, SE21 7EX

27 Apr '21

Ground floor Rear

Mount Adon Park, SE22 0DT

02 Dec '21

First floor Internal alteration

Mount Adon Park, SE22 0DT

17 Jan '22

Loft No dormer

Overhill Road, SE22 0PQ

11 Jun '18

Two storey Side

Rycott Path, SE22 0AA

13 May '20

Whole house Internal alteration

Wood Vale, SE23 2EB

17 Aug '21

Ground floor Rear

Horniman Drive, SE23 3BJ

05 May '21

Ground floor Wraparound

Friern Road, SE22 0BD


Loft Hip to gable with main dormer

Friern Road, SE22 0BB

07 Apr '22

Ground floor Rear

Goodrich Road, SE22 0EP

15 May '23

Ground floor Wraparound

Dunstans Road, SE22 0HD

21 Jan '21

Ground floor Wraparound

Dunstans Road, SE22 0HD

11 Sep '20

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

Average construction costs for the Dulwich area

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



Side Infill




First Floor


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

Landcroft Road

Landcroft Road

Ground floor side
Completed 2019
Planning authority Southwark

Ashbourne Grove

Ashbourne Grove

Ground floor wraparound
Ground floor rear
Completed 2020
Planning authority Southwark

Overhill Road

Overhill Road

Completed 2019
Planning authority Southwark

Why people near Dulwich 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...


Loft Hip to gable with main dormer

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...


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.

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