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.

18,831 flats measured

Best £/sqft£/m² first

1 listing · £2.72/sqft£29.28/m² median in SM6

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

734 sqft 68 m²

£2.72/sqft £29.28/m²
£2,000/mo £1,000 each (if split by room) ◷ relisted 1×

Caledon Road, Wallington, SM6

2 bed 1 bath Carshalton

16 days on market avail 11 Oct 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.