Which planning application do I need?

Step 1 of 3

Your property

What kind of property is it?

Detached house Semi-detached house Terraced house Flat or maisonette Commercial or other building

Is the building listed?

No Yes Not sure

We also check the national heritage list and conservation area records for you.

Has the property been extended before, or did an earlier permission remove permitted development rights?

No It has been extended Rights were removed Not sure

Step 2 of 3

Your project

What would you like to do? Choose a project Single-storey rear extension Two-storey rear extension Side extension Wrap-around (side and rear) extension Front porch or front extension Loft conversion with dormer or hip-to-gable Extra storey or raised roof Basement Garden room or outbuilding New windows, doors or cladding Internal alterations only Convert a house into flats Build a new house or flats Change a house to a small HMO (3 to 6 people) Change to a large HMO (7 or more people)

About the extension

Depth beyond the original rear wall, in metres No higher than 4 m, and eaves no higher than 3 m within 2 m of a boundary

About the extension

Depth beyond the original rear wall, in metres At least 7 m from the rear boundary

About the extension

Single storey, no higher than 4 m No wider than half the width of the original house

About the loft

Dormer on the roof slope facing the road Raises the ridge or roof height Includes a balcony or roof terrace Adds more than 40 m³ (terrace) or 50 m³ (semi or detached)

About the outbuilding

In front of the house Within 2 m of a boundary and taller than 2.5 m Taller than 4 m (pitched) or 3 m (other roof) Used as a bedroom or separate home

About the porch

No more than 3 m² and 3 m high At least 2 m from the boundary with the road

About the house

Built between 1 July 1948 and 28 October 2018

Anything else we should know? (optional)

Step 3 of 3

Your details

We'll show your report straight away, and one of our architects will follow up to answer any questions.

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General guidance based on national planning law, the London Plan and your council's published policies. It isn't a formal planning decision. Constraints come from free official sources, including the government's planning data, the Greater London Authority, the Environment Agency, Natural England and Transport for London, checked against your Land Registry plot.