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.

18,826 flats measured

Best £/sqft£/m² first

2 listings · £3.85/sqft£41.44/m² median in Clapham

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

3,181 sqft 296 m²

£2.83/sqft £30.46/m² 26% below Clapham median
£9,000/mo £1,500 each (if split by room)

Cautley Avenue, SW4

6 bed 4 bath Abbeville Village

6 days on market avail 17 Oct Share Agent's site ↗
Property photo
Floorplan

4,849 sqft 450 m²

£3.09/sqft £33.26/m² 20% below Clapham median
£15,000/mo £3,000 each (if split by room) ◷ relisted 1×

Victoria Rise, London SW4

5 bed 4 bath Clapham

Also listed here £20,000 short let ↗

6 days on market avail 30 Sep Share Agent's site ↗

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.