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.

18,647 flats measured

Best £/sqft£/m² first

5 listings · £3.13/sqft£33.69/m² median in Dulwich

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.

1,776 sqft 165 m²

£2.53/sqft £27.23/m² 19% below Dulwich median
£4,500/mo £1,125 each (if split by room)

Sydenham Hill, London

4 bed 3 bath Dulwich

5 days on market avail now Share Portal ↗

1,216 sqft 113 m²

£3.00/sqft £32.29/m² 4% below Dulwich median
£3,650/mo £913 each (if split by room)

Four bedroom flat to rent in Herne Hill

4 bed 2 bath Dulwich

5 days on market avail 3 Dec Share Agent's site ↗

2,359 sqft 219 m²

£3.18/sqft £34.23/m² short let
£7,500/mo

Holmdene Avenue, London, SE24

5 bed 3 bath Dulwich

6 days on market avail 30 Oct Share Portal ↗

2,304 sqft 214 m²

£3.47/sqft £37.35/m²
£8,000/mo £2,000 each (if split by room)

Sydenham Hill

4 bed 2 bath Dulwich

5 days on market avail now Share Portal ↗

size unknown

—/sqft/m²
£4,000/mo £1,000 each (if split by room)

Stradella Road, Herne Hill, London, SE24

4 bed 2 bath Dulwich

19 days on market avail 20 Nov 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.