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.

18,438 flats measured

Best £/sqft£/m² first

18 listings · £5.88/sqft£63.29/m² median in Blackfriars

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.

971 sqft 90 m²

£3.55/sqft £38.21/m² 40% below Blackfriars median
£3,445/mo £1,723 each (if split by room)

Martin Lane, City, London, EC4R

2 bed 2 bath Aldgate

6 days on market Share Agent's site ↗

876 sqft 81 m²

£3.71/sqft £39.93/m² 37% below Blackfriars median
£3,250/mo £1,625 each (if split by room)

4-7 Lombard Lane, London

2 bed 2 bath Aldgate

listed today avail now Share Portal ↗

495 sqft 46 m²

£3.74/sqft £40.26/m² 36% below Blackfriars median
£1,850/mo

Middlesex Street, Spitalfields, London

0 bed 1 bath Aldgate

5 days on market avail 28 Nov Share Agent's site ↗

840 sqft 78 m²

£3.81/sqft £41.01/m² 35% below Blackfriars median
£3,198/mo £1,599 each (if split by room)

Crescent House, Golden Lane, City of London

2 bed 1 bath Aldgate

3 days on market Share Agent's site ↗

710 sqft 66 m²

£4.23/sqft £45.53/m² 28% below Blackfriars median
£3,000/mo £1,500 each (if split by room)

Bridgewater Square, Barbican

2 bed 2 bath Aldgate

3 days on market Share Agent's site ↗

581 sqft 54 m²

£4.65/sqft £50.05/m² 21% below Blackfriars median
£2,700/mo

Pepys Street, Tower Hill

1 bed 1 bath Aldgate

5 days on market Share Agent's site ↗

517 sqft 48 m²

£4.84/sqft £52.10/m² 18% below Blackfriars median
£2,500/mo ◷ relisted 1×

Hosier Lane, West Smithfield, London

1 bed 1 bath Aldgate

6 days on market avail 1 Oct Share Portal ↗

910 sqft 85 m²

£4.88/sqft £52.53/m² 17% below Blackfriars median
£4,442/mo £2,221 each (if split by room)

St Dunstans House, 133-137 Fetter Lane, Holborn, London, EC4A

2 bed 2 bath Aldgate

listed yesterday avail 6 Nov Share Portal ↗

357 sqft 33 m²

£5.18/sqft £55.76/m² 12% below Blackfriars median
£1,850/mo

Thomas More House Barbican EC2

0 bed 1 bath Aldgate

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

511 sqft 47 m²

£5.19/sqft £55.86/m² 12% below Blackfriars median
£2,650/mo

St. Mary At Hill, Bank

1 bed 1 bath Aldgate

5 days on market avail 19 Nov Share Agent's site ↗

453 sqft 42 m²

£5.52/sqft £59.42/m² 6% below Blackfriars median
£2,500/mo ◷ relisted 2×

Globe View, High Timber Street, EC4V

1 bed 1 bath Aldgate

listed today avail 12 Oct Share Portal ↗

398 sqft 37 m²

£5.65/sqft £60.82/m² 4% below Blackfriars median
£2,250/mo

Middle Street, West Smithfield, London

1 bed 1 bath Aldgate

listed today avail now Share Portal ↗

560 sqft 52 m²

£5.80/sqft £62.43/m²
£3,250/mo

5 Moor Lane, Moorgate, London, EC2Y

1 bed 1 bath Aldgate

listed today avail 29 Nov 2027 Share Agent's site ↗

501 sqft 47 m²

£5.97/sqft £64.26/m²
£2,990/mo

Roman House, London, EC2Y

1 bed 1 bath Aldgate

2 days on market avail 26 Oct Share Agent's site ↗

821 sqft 76 m²

£6.33/sqft £68.14/m²
£5,200/mo

Bride Lane, Blackfriars, London, EC4Y

1 bed 2 bath Aldgate

listed today Share Agent's site ↗

928 sqft 86 m²

£7.11/sqft £76.53/m² 21% above Blackfriars median
£6,600/mo £3,300 each (if split by room)

One Bishopsgate Plaza, 80 Houndsditch, London

2 bed 2 bath Aldgate

3 days on market avail 28 Oct Share Agent's site ↗

330 sqft 31 m²

£10.61/sqft £114.20/m² price unclear
£3,500/mo

Bishopsgate, Bishopsgate, EC2M

0 bed 1 bath Aldgate

Also listed here £2,500 ↗

6 days on market avail 1 Oct Share Agent's site ↗

size unknown

—/sqft/m²
£2,496/mo

West Smithfield, City of London

1 bed 1 bath Aldgate

listed today avail 15 Nov 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.