Planning Permission in Greater London

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Planning Permission in Greater London

Planning permission is a system where local authorities can authorise building works by granting permission for the planned work. Garage conversions will often not require planning permission, so long as the work is internal and you do not intend to enlarge the structure of your home. Garage conversions tend to be covered under permitted development rights, which cover a number of home improvement work. However, these rights have been rescinded in a few areas by local authorities, particularly in new builds, therefore it is always worth verifying with your local authority. If you're thinking about undertaking a garage conversion on a listed building or live in a conservation area, you will require planning permission. In addition, if the walls of your garage are shared walls with a neighbouring property, you will require a Party Wall Agreement. You are required to adhere to all building regulations corresponding to your garage conversion whether or not you need planning permission. These building regulations cover elements of the conversion such as insulation, escape routes, fire proofing and ventilation, so it is usually a good idea to utilise an architect to draw up plans and to approve designs in order to ensure compliance with these regulations. You will likely still need to submit plans detailing the change of use of the garage to your local authority. If planning permission is considered from the start of the project, it is much less likely that there will be any trouble further down the road. The vast majority of planning permission applications in England are approved.

Average Planning permission cost in Greater London

Average price per Planning permission job in 2026

Avg. price low

Avg. price low
£347

Avg. price

Avg. price
£450

Avg. price high

Avg. price high
£532

£700

£525

£350

£175

£0

Prices based on actual Planning permission costs for Greater London, as reported by local LeadsDoWork members.

Planning permission installation cost in Greater London 2026

Labour cost £450
Time frame: 1-2 weeks
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Planning permission on Google in Greater London

Google searches that showed Local Quotes, 23 July to 20 October 2026

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Searches that showed our Planning permission page for Greater London

15,302

Searches that showed one of our pages for Greater London, all services

153

Searches that showed our Planning permission page for the UK

Source: Google Search Console, the number of times our pages appeared in Google search results. It counts searches that showed the page, not quote requests.

Greater London

The Greater London region has the second biggest population in the UK, just behind the South East. However, with the smallest land area of all 9 English zones, it comes with a large population density of 5,701 people per square kilometre; this is more than ten times of any other English region. London continues to increase in size over time, becoming increasingly industrialised. The City of London at the same time ranks as one of the most expensive urban centres on the planet, beside Tokyo and Moscow. For your household developments be sure to work with trustworthy firms and guarantee an excellent finish you will be proud of.

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Similar Customer Enquiries for Planning permission in Greater London

20 Apr

Planning Permission

London - SE25

Enquiry from: Leandro C

Start Date: Immediate

Side return extension. This will also incclude relocating the downstairs bathroom

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08 Jan

Planning Permission

Romford - RM7

Enquiry from: Diksha P

Start Date: Immediate

Planning Permission enquiry

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26 Oct

Planning Permission

Erith - DA8

Enquiry from: Imteaz B

Start Date: 1 to 3 months

They are considering a couple of projects at the moment

Property: semi detached · When: 1-3 months

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21 Oct

Planning Permission

Romford - RM7

Enquiry from: Suhailah M

Start Date: Immediate

Property: terrace · When: immediate

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11 Oct

Planning Permission

Brentwood - CM14

Enquiry from: Jamila P

Start Date: 1 to 3 months

Property: terrace · When: 1-3 months

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06 Oct

Planning Permission

Croydon - CR0

Enquiry from: Anjana G

Start Date: Immediate

Property: semi detached · When: immediate

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16 May

Planning Permission

Bexleyheath - DA7

Enquiry from: Lakshya K

Start Date: Immediate

Extend conservative including kitchen and side path

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06 May

Planning Permission

London - NW6

Enquiry from: Noam G

Start Date: Immediate

They are considering a couple of projects at the moment

Property: semi detached · When: immediate

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22 Nov

Planning Permission

Surbiton - KT5

Enquiry from: Petar S

Start Date: Immediate

Property: semi detached · When: immediate

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05 Nov

Planning Permission

Borehamwood - WD6

Enquiry from: Janette T

Start Date: Immediate

Planning permission to replace living room window

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