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.

18,828 flats measured

Best £/sqft£/m² first

2 listings · £2.73/sqft£29.39/m² median in Bexley

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

986 sqft 92 m²

£2.23/sqft £24.00/m² 18% below Bexley median
£2,200/mo £733 each (if split by room) was £2,295 ◷ 53 days on market

Rainbow Road, Dartford, Kent, DA8

3 bed 1 bath Howbury

12 days on market avail now Share Portal ↗
Property photo
Floorplan

490 sqft 46 m²

£3.47/sqft £37.35/m² 27% above Bexley median
£1,700/mo £850 each (if split by room) ◷ relisted 1×

Mayplace Road East, Bexleyheath, Kent, DA7

2 bed 1 bath Barnehurst

10 days on market avail now 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.