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.

18,877 flats measured

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Best £/sqft£/m² first

2 listings · £3.84/sqft£41.33/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

730 sqft 68 m²

£3.63/sqft £39.07/m² 5% below Clapham median
£2,650/mo

Narbonne Avenue, Clapham SW4

1 bed 1 bath Abbeville Village

gardennot basement listed today avail 12 Nov Share Portal ↗
Property photo
Floorplan

788 sqft 73 m²

£5.39/sqft £58.02/m² short let
£4,250/mo

Hambalt Road, SW4

2 bed 1 bath Abbeville Village

gardennot basement listed today avail 10 Jan 2027 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.