Every London flat, measured.

The portals won’t let you rank by size. We read the floorplans, so you can.

18,375 flats measured

Best £/sqft£/m² first

6 listings · £7.32/sqft£78.79/m² median in SW1X

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.

Floorplan

1,187 sqft 110 m²

£4.21/sqft £45.32/m² 42% below SW1X median

£5,000/mo £2,500 each (if split by room) was £5,250 ◷ relisted 1×

Lyall Street, Belgravia, London, SW1X

2 bed 2 bath Belgravia

Also listed here £5,000 same price ↗

4 days on market avail now Portal ↗

904 sqft 84 m²

£5.53/sqft £59.52/m² 24% below SW1X median

£4,996/mo was £5,000

Pont Street, Knightsbridge, SW1X

1 bed 1 bath Belgravia

19 days on market avail now Agent's site ↗

Floorplan

1,462 sqft 136 m²

£5.91/sqft £63.61/m² 19% below SW1X median

£8,645/mo £2,161 each (if split by room) was £8,948

Sloane Street, London SW1X

4 bed 2 bath Belgravia

24 days on market avail now Portal ↗

Floorplan

1,455 sqft 135 m²

£5.94/sqft £63.94/m² 19% below SW1X median

£8,645/mo £2,161 each (if split by room) was £8,948

Herbert Mansions, 35 Sloane Street, London, SW1X

4 bed 2 bath Belgravia

24 days on market avail now Agent's site ↗

Floorplan

1,349 sqft 125 m²

£6.26/sqft £67.38/m² 14% below SW1X median

£8,450/mo £4,225 each (if split by room) was £8,992

Bowland Yard, Kinnerton Street, Belgravia, London SW1X

2 bed 2 bath Belgravia

26 days on market avail now Agent's site ↗

Floorplan

1,637 sqft 152 m²

£8.34/sqft £89.77/m² 14% above SW1X median

£13,650/mo £4,550 each (if split by room) was £14,733

Denbigh House, 8-13 Hans Place, Knightsbridge, SW1X

3 bed 3 bath Belgravia

24 days on market Agent's site ↗

How we know the size

01

We collect

Every new flat to rent in London, checked through the day, seven days a week.
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.
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.