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.

18,506 flats measured

Best £/sqft£/m² first

2 listings · £5.96/sqft£64.15/m² median in SW1

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

1,759 sqft 163 m²

£7.10/sqft £76.42/m² short let
£12,497/mo

Lower Sloane Street, London, SW1W

4 bed 3 bath Chelsea

listed today avail now Share Agent's site ↗
Property photo

size unknown

—/sqft/m²
£2,365/mo

Vauxhall Bridge Road, London, SW1V

0 bed 1 bath Grosvenor Estate

listed today avail 1 Nov 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.