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.

18,592 flats measured

Best £/sqft£/m² first

2 listings · £4.75/sqft£51.13/m² median in EC1

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

517 sqft 48 m²

£4.84/sqft £52.10/m²
£2,500/mo ◷ relisted 1×

Hosier Lane, West Smithfield, London

1 bed 1 bath Aldgate

5 days on market avail 1 Oct Share Portal ↗
Property photo
Floorplan

999 sqft 93 m²

£5.42/sqft £58.34/m² 14% above EC1 median
£5,417/mo £2,709 each (if split by room) ◷ relisted 1×

Old Street – 2 Bedrooms Flat

2 bed 2 bath Barbican

6 days on market avail 28 Sep 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.