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.

18,582 flats measured

Best £/sqft£/m² first

2 listings · £5.79/sqft£62.32/m² median in Bishopsgate

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

876 sqft 81 m²

£3.71/sqft £39.93/m² 36% below Bishopsgate median
£3,250/mo £1,625 each (if split by room)

4-7 Lombard Lane, London

2 bed 2 bath Aldgate

listed today avail now Share Portal ↗
Property photo
Floorplan

398 sqft 37 m²

£5.65/sqft £60.82/m²
£2,250/mo

Middle Street, West Smithfield, London

1 bed 1 bath Aldgate

listed today 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.