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.

18,825 flats measured

Best £/sqft£/m² first

4 listings · £3.68/sqft£39.61/m² median in Putney

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

841 sqft 78 m²

£3.86/sqft £41.55/m²
£3,250/mo £1,083 each (if split by room) was £3,750 ◷ relisted 1×

Bishops Mansions, Bishops Park Road, SW6

3 bed 1 bath Bishop’s Mansions

4 days on market avail 3 Oct Share Agent's site ↗
Property photo
Floorplan

size unknown

—/sqft/m²
£2,460/mo was £3,190 ◷ relisted 15×

New Acres, Wandsworth, SW18

1 bed 1 bath Putney

Also listed here £2,565 ↗

2 days on market avail now 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.