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.

18,577 flats measured

Best £/sqft£/m² first

2 listings · £3.16/sqft£34.01/m² median in Lee

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

1,257 sqft 117 m²

£2.39/sqft £25.73/m² 24% below Lee median
£3,000/mo £1,000 each (if split by room)

Hatcliffe Close, London, SE3

3 bed 1 bath Blackheath

listed today avail 3 Oct Share Agent's site ↗
Property photo

436 sqft 41 m²

£3.78/sqft £40.69/m² 20% above Lee median
£1,650/mo

Aldworth Grove, London, SE13

1 bed 1 bath Catford

listed today avail 5 Oct 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.