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.

18,963 flats measured

Best £/sqft£/m² first

5 listings · £7.46/sqft£80.30/m² median in St. James's

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.

5,921 sqft 550 m²

£10.61/sqft £114.20/m² 42% above St. James's median
£62,833/mo £15,708 each (if split by room)

Park Lane, Mayfair W1K

4 bed 5 bath Chinatown

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

4,500 sqft 418 m²

£10.67/sqft £114.85/m² 43% above St. James's median
£48,000/mo £12,000 each (if split by room) was £54,000

Upper Grosvenor Street, Mayfair, W1K 2NA

4 bed 4 bath Chinatown

13 days on market Share Portal ↗

4,291 sqft 399 m²

£12.62/sqft £135.84/m² 69% above St. James's median
£54,167/mo £13,542 each (if split by room) ◷ relisted 1×

Upper Grosvenor Street, Mayfair, W1K

4 bed 4 bath Chinatown

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

size unknown

—/sqft/m²
£54,167/mo £10,833 each (if split by room)

Upper Grosvenor Street, W1K

5 bed 4 bath Chinatown

5 days on market Share Portal ↗

size unknown

—/sqft/m² short let
£108,333/mo

Upper Grosvenor Street, W1K

5 bed 4 bath Chinatown

5 days on market 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.