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Colney Hatch architects.
Britain's No. 1

Friern Barnet Park 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

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A planning team staffed by ex-council officers

Organise your entire project from one place

Barnet planning application stats

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



UK Average


Resi's planning consultant

Danielle Price

Former Wigan Council Planning Officer
Barnet's planning officers

Karina Conway, Kate Foster, Harvey Penn, Anestis Skoupras, Eva Quille, ...

170 Number of applications
6 - 276 days Submit to complete time
140 Granted applications
30 Refused applications
8w 2d Average decision time
See if you qualify for Permitted Development

We've had 140 planning applications approved in Barnet

Ground floor Side infill

Hampden Road, N10 2HL

21 Jul '21

Ground floor Side infill

Cromwell Road, N10 2PD

09 Apr '20

Ground floor Rear

Alexandra Road, N10 2EX

26 Oct '21

Ground floor Side

Windermere Road, N10 2RG


Ground floor Internal alteration

Muswell Avenue, N10 2EG

14 Jan '21

Garden Annex

Coppetts Close, N12 0AG

31 Oct '22

Ground floor Rear

Coniston Road, N10 2BL

25 May '21

First floor Side

Cheddar Close, N11 3GR

18 Jan '21

Ground floor Side infill

Rosebery Road, N10 2LE

28 May '21

Ground floor Rear

Muswell Road, N10 2BS

07 Mar '24

Loft Hip to gable with main dormer

Lyndhurst avenue, N12 0LX

24 Mar '23

Loft Hip to gable with main dormer

Lyndhurst avenue, N12 0LX

29 Mar '23

Ground floor Side infill

Woodberry Crescent, N10 1PJ

27 Oct '20

Ground floor Side infill

Woodberry Crescent, N10 1PJ

02 Mar '20

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

Average construction costs for the Colney Hatch area

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



Side Infill




First Floor


Try our Construction Cost calculator

Here's just a few projects we've done near Colney Hatch

West End Lane

West End Lane

Ground floor rear
Completed 2020
Planning authority Barnet

Ashurst Road

Ashurst Road

Ground floor rear
Completed 2021
Planning authority Barnet

Why people near Colney Hatch 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 Colney Hatch

Home Republic Limited
7 reviews