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.

18,816 flats measured

Best £/sqft£/m² first

3 listings · £3.24/sqft£34.88/m² median in SE4

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

3,092 sqft 287 m²

£1.94/sqft £20.88/m² 40% below SE4 median
£6,000/mo £1,200 each (if split by room) ◷ 33 days on market

Breakspears Road, Brockley

5 bed 3 bath Deals Gateway

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

1,624 sqft 151 m²

£3.69/sqft £39.72/m² 14% above SE4 median
£6,000/mo £1,000 each (if split by room) ◷ 33 days on market

Crescent Way, Brockley

6 bed 5 bath Ladywell

33 days on market Share Agent's site ↗
Property photo

size unknown

—/sqft/m²
£4,702/mo £940 each (if split by room) ◷ 42 days on market

Braxfield Road, London, SE4

5 bed 1 bath Brockley

42 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.