GaffFinder

London lettings, by the square foot

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Every London flat, measured.

The portals won’t let you rank by size. We read the floorplans, so you can.

18,744 flats measured

Best £/sqft£/m² first

4 listings · £3.75/sqft£40.36/m² median in Herne Hill

Sizes are estimates: an AI model reads most of them from the floorplan, and it can be wrong — so can the £/sqft£/m² worked out from them. Check with the agent before you rely on one.

Property photo
Floorplan

650 sqft 60 m²

£3.38/sqft £36.38/m² 10% below Herne Hill median
£2,200/mo £1,100 each (if split by room)

Dulwich Road, Brixton, London, SE24

2 bed 1 bath Brixton

listed today avail 2 Nov Share Agent's site ↗
Property photo
Floorplan

728 sqft 68 m²

£3.57/sqft £38.43/m² 5% below Herne Hill median
£2,600/mo £1,300 each (if split by room)

Milles Square, Brixton

2 bed 2 bath Brixton

listed today Share Portal ↗
Property photo

size unknown

—/sqft/m²
£2,950/mo £1,475 each (if split by room)

Cavell Court, 3 Dog Kennel Hill, London, SE22

2 bed 2 bath Champion Hill Estate

listed today avail now Share Portal ↗

How we know the size

  1. 01

    We collect

    Every new flat to rent in London, checked through the day, seven days a week.

  2. 02

    We read the floorplan

    A vision model reads the plan the way you would — room by room, taking the dimensions printed on it. It is an AI estimate, and it can be wrong.

  3. 03

    We measure

    That gives a square footage, and a price per square foot. You can sort and filter on both. The portal offers neither.