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.

18,655 flats measured

Best £/sqft£/m² first

3 listings · £2.78/sqft£29.92/m² median in Sydenham

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

750 sqft 70 m²

£2.53/sqft £27.23/m² 9% below Sydenham median
£1,900/mo £950 each (if split by room) ◷ relisted 1×

Sydenham Road, Sydenham

2 bed 1 bath Lower Sydenham

5 days on market Share Agent's site ↗
Property photo
Floorplan

633 sqft 59 m²

£2.61/sqft £28.09/m² 6% below Sydenham median
£1,650/mo £825 each (if split by room) ◷ relisted 1×

Melborne Court, Anerley Road, London

2 bed ? bath Crystal Palace

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

532 sqft 49 m²

£3.10/sqft £33.37/m²
£1,650/mo £825 each (if split by room) was £1,750 ◷ relisted 1×

Anerley Park, LONDON

2 bed 1 bath Crystal Palace

13 days on market avail now 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.