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.

18,821 flats measured

Best £/sqft£/m² first

3 listings · £3.16/sqft£34.01/m² median in Halfway Street

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

size unknown

—/sqft/m²
£1,475/mo £738 each (if split by room) was £1,500 ◷ 33 days on market

Bernards Court, Ellison Road

2 bed 1 bath Halfway Street

36 days on market avail now Share Portal ↗
Property photo

size unknown

—/sqft/m²
£2,250/mo £750 each (if split by room) ◷ 2mo on market

Caithness Gardens, Sidcup, DA15

3 bed 1 bath Blackfen

2mo on market avail now Share Agent's site ↗
Property photo
Floorplan

size unknown

—/sqft/m²
£1,150/mo ◷ relisted 1×

Halfway Street, Sidcup, DA15

0 bed 1 bath Halfway Street

32 days on market avail 15 Oct 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.