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.

18,500 flats measured

Best £/sqft£/m² first

3 listings · £5.55/sqft£59.74/m² median in SW1P

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.

1,177 sqft 109 m²

£3.99/sqft £42.95/m² 28% below SW1P median
£4,700/mo £1,567 each (if split by room) was £4,900 ◷ relisted 1×

Marsham Street, London

3 bed 3 bath Millbank

5 days on market avail now Share Agent's site ↗

1,647 sqft 153 m²

£4.74/sqft £51.02/m² 15% below SW1P median
£7,800/mo £2,600 each (if split by room) ◷ relisted 1×

Abell House, John Islip Street, London, SW1P

3 bed 3 bath Grosvenor Estate

5 days on market avail now Share Portal ↗

1,278 sqft 119 m²

£4.89/sqft £52.64/m² 12% below SW1P median
£6,250/mo £2,083 each (if split by room) ◷ relisted 1×

8 Artillery Row, LONDON, SW1P

3 bed 3 bath Millbank

Also listed here £6,250 same price ↗

3 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.