

Building regulations drawings · London Borough of Brent
Building regulations drawings in Brent, £695 fixed
Brent building control decides full plans within five weeks by law, lets work start 48 hours after a building notice, and declares approved plans of no effect after three years. Its plan charge must come with a full plans application or it may be invalid. We prepare the set and estimate for it.
Householder application fee, paid to your council at submission.
Plus the Planning Portal's own charge if the application goes through the Portal: up to £149 including VAT, depending on the application type, and some types have none (source).
Get this fee in writingor email hello@fixedfeeplans.co.uk
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Fixed fee, in writing
Tell us about your project
Send the postcode and what you want to build, and add photos or old plans if you have them. We reply with the fee in writing and the payment stages set out in full.

What Brent Council asks of a building regulations application
From the council's The Building Control application process explained (adopted current council page, read 25 October 2026).
- Brent says full plans are usually for larger work or where consultation with the Fire Brigade or Thames Water is required, and building notices are usually for more minor residential works. (source, checked 25 October 2026)
- With a building notice there may be no detailed plans to approve, so work can start once the notice is accepted, usually within 48 hours. (source, checked 25 October 2026)
- A full plans decision is due by law within five weeks of receipt unless extended with the applicant's written consent, though it is usually much sooner, and work started before approval is at risk of extra cost if the design is not in accordance with the regulations. (source, checked 25 October 2026)
- Approval of plans lasts for three years, and if work does not start in that time the council may serve a notice declaring the plans of no effect, so a fresh application is needed. (source, checked 25 October 2026)
- Brent's charges have two parts, a plan charge and an inspection charge, the overall charge for a building notice and a full plans application is the same for similar work, and the plan charge must accompany a full plans application or it may be considered invalid. (source, checked 25 October 2026)
- The estimated cost of works used for charging should be the cost of all the building work and should not include professional fees, and Brent says local council building control teams may only recover the cost of the work they carry out and do not make a profit. (source, checked 25 October 2026)
What Brent building regulations application drawings have to show
Brent's own page tells you to use full plans when the Fire Brigade or Thames Water has to be consulted, so we draw the escape routes, fire separation and drainage near public sewers as one full plans package for a loft, a rear extension or a flat conversion. The set goes in with the plan charge, because without it Brent may treat the application as invalid.
We write the date of the application on the cover sheet and diarise the three-year limit, so the approved plans are not declared of no effect if the build is delayed. The cost estimate on the application is prepared the way Brent asks, covering the building work only and not professional fees, with a written breakdown to support it.
Brent: 879 householder decisions

What it costs in Brent
- Building regulations drawings: £545 drawings + £150 survey (£695 total).
- The building control charge is set by your council or a registered building control approver.
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Answers
Brent building regulations application questions
How long does Brent building control take to approve full plans?
How long do Brent building regulations approvals last?
Is a Brent building notice cheaper than full plans?
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Tell us the postcode and what you want to build. We confirm the fee in writing and book the survey.