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Free planning check

Free Brentwood planning permission check

Check in 23 seconds whether your Brentwood project needs planning permission, and what the council has approved near you. £995 planning drawings, paid only when the council approves. Council and Portal fees are paid separately at submission.

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About the planning data

Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.


Brentwood approval rates by project type

Historical approval rates in our archive, grouped by project type. These describe recorded decisions, not the chance of approval for your proposal. Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.

Brentwood, by project type
Project typeApproval rateDecided
Single-storey rear extension84%1,730
Two-storey rear extension78%1,295
Wraparound extension81%339
Side extension81%1,023
Loft conversion and dormer73%365
Rooflight80%386
Outbuilding and garden room77%396
Porch90%233
Garage conversion90%198
Basement81%99
Window and door88%289

A rate is only shown where at least 8 applications of that type were decided; smaller samples are shown as unknown. Withdrawn and undecided records are excluded. These figures cover all recorded years, including records without a year. Full Brentwood approval rates.


Brentwood planning resources

Check the authority's current records for the property's planning history, application requirements and local restrictions.


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Questions about planning in Brentwood

Do I need planning permission for my project in Brentwood?

Some house extensions, loft conversions and outbuildings can use permitted development rights in Brentwood, but size alone does not establish eligibility. Check the property type, previous extensions, planning conditions and the rules for the proposed work. Householder rights do not apply to flats. Conservation areas and Article 4 directions restrict particular rights; they do not automatically require an application for every change. Listed building consent is a separate requirement for works affecting a listed building's special interest.

What is the planning approval rate in Brentwood?

It depends on the project type. 84% of 1,730 decided single-storey rear extension applications in Brentwood were approved. 73% of 365 decided loft conversion and dormer applications in Brentwood were approved. Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England. Every project type is on the Brentwood approval rates page.

Read the official guidance on when permission is required, listed buildings and conservation areas and planning decision periods.


Approval rates are computed from 2,343,419 decided applications across 181 councils, published by each council. The free check is guidance from the public record, not a council decision.