26 Cornwallis Square
N19 4LY
- Flat
- Leasehold
- 1 bedroom (estimate)
- 517 sq ft
- EPC D
What comparable sales show
Fair match£403,000
Range £335,000 to £472,000 · £780 per sq ft
Since last sale
+£68,000
+20.3% since Sept 2025, +18.6% a year
Rank in N19 4LY
12th of 21
Postcode average £640,905
From completed sales of similar homes nearby, adjusted for floor area. It cannot see condition, layout or recent work, so it is not a valuation.
In short
26 Cornwallis Square is a 1 bedroom leasehold flat in N19 of about 517 sq ft.
Comparable completed sales nearby put it at £335,000 to £472,000, about £403,000 in the middle.
That makes it the 12th highest of the 21 homes we can compare in N19 4LY, where the middle figure averages £640,905.
It last sold for £335,000 in September 2025; comparable sales suggest it has gained about £68,000 since, roughly +18.6% a year.
Across Islington, average prices fell 8.6% in the year to August 2026.
Where in the range would yours sell?
Condition and improvements usually decide it, and only someone who sees the home can say.
Lower end
£335,000
Middle
£403,000
Upper end
£472,000
Done work since the records were made? Claim your home and tell us, or ask local agents where yours sits.
Sale history
Every sale of this home registered with HM Land Registry since 1995
| Sold | Price paid | Change | A year |
|---|---|---|---|
| September 2025 | £335,000 | +45.7% | +6.3% |
| July 2019 | £230,000 | +260.8% | +6.5% |
| February 1999 | £63,750 | First sale | – |
Homes in N19 4LY
Ranked by what comparable sales show. Choose one to see its page.
- 11 Cornwallis SquareSemi-detachedSold May 1996 for £140k£1,171,000#1
- 12 Cornwallis Square Islington LondonTerracedSold Jul 1996 for £134k£1,089,000#2
- 2 Cornwallis SquareTerracedSold Oct 2004 for £350k£993,000#3
- 10 Cornwallis SquareTerracedSold Aug 2005 for £365k£989,000#4
- 13 Cornwallis SquareTerracedSold Jan 1998 for £152k£989,000#5
- 8 Cornwallis SquareTerraced · 4 bed · 1,163 sq ftSold Jul 2025 for £930k£930,000#6
- 9 Cornwallis SquareTerracedSold Jun 2000 for £228k£925,000#7
- 4 Cornwallis SquareTerracedSold Dec 2014 for £725k£879,000#8
- 7 Cornwallis SquareTerracedSold Oct 2022 for £895k£867,000#9
- 5 Cornwallis Square Islington LondonTerracedSold Sept 2014 for £685k£799,000#10
- 3 Cornwallis SquareTerracedSold May 2015 for £626k£713,000#11
- 26 Cornwallis Square (this home)Flat · 1 bed · 517 sq ftSold Sept 2025 for £335k£403,000#12
- 52 Cornwallis Square Islington LondonTerracedSold Nov 2022 for £369k£368,000#13
- 28 Cornwallis SquareFlatSold Jan 2000 for £100k£358,000#14
- 27 Cornwallis SquareFlatSold Aug 2004 for £165k£347,000#15
- 31 Cornwallis SquareFlatSold Dec 1998 for £75k£345,000#16
- 54 Cornwallis SquareFlatSold Jan 2015 for £320k£329,000#17
- 51 Cornwallis SquareFlatSold Apr 2004 for £149k£325,000#18
- 29 Cornwallis SquareFlatSold Jun 1997 for £60k£320,000#19
- 50 Cornwallis SquareFlatSold Dec 2002 for £68k£161,000#20
- 49 Cornwallis SquareFlatSold Jun 2005 for £76k£159,000#21
- 1 Cornwallis Square–
- 6 Cornwallis SquareTerracedSold Aug 2026 for £970k–
- 14 Cornwallis Square–
- 15 Cornwallis Square–
- 16 Cornwallis Square–
- 17 Cornwallis Square–
- 18 Cornwallis Square–
- 19 Cornwallis Square–
- 20 Cornwallis Square–
- 21 Cornwallis Square–
- 22 Cornwallis Square–
- 23 Cornwallis Square–
- 24 Cornwallis Square–
- 25 Cornwallis Square–
- 33 Cornwallis Square–
- 34 Cornwallis Square–
- 35 Cornwallis Square–
- 37 Cornwallis Square–
- 38 Cornwallis Square–
- 40 Cornwallis Square–
- 42 Cornwallis Square–
- 43 Cornwallis Square–
- 44 Cornwallis Square–
- 45 Cornwallis Square–
- 46 Cornwallis Square–
- 47 Cornwallis Square–
- 48 Cornwallis Square–
- 53 Cornwallis Square–
- Top Floor Flat 30 Cornwallis Square–
The completed sales behind the figure
Similar homes nearby, registered with HM Land Registry. Choose one to see its page.
| Home | Price | Sold | Size | Per sq ft | Away |
|---|---|---|---|---|---|
| Flat A, 44 Davenant RoadN19 3NN · Flat | £505,300 | Mar 2026 | 495 sq ft | £1,021 | 0.1 mi |
| Flat 6, Vincent Court Hanley RoadN4 3DT · Flat | £440,000 | Mar 2026 | 517 sq ft | £852 | 0.2 mi |
| 170A Marlborough RoadN19 4NP · Flat | £325,000 | Dec 2025 | 538 sq ft | £604 | 0.2 mi |
| 63 Mowatt CloseN19 3XZ · Flat | £284,400 | Mar 2026 | 538 sq ft | £528 | 0.2 mi |
| Flat 41, Blenheim Court Marlborough RoadN19 4HR · Flat | £365,000 | Aug 2025 | 484 sq ft | £754 | 0.1 mi |
| Flat 2, 656 Holloway RoadN19 3NU · Flat | £516,000 | Jul 2025 | 538 sq ft | £959 | 0.1 mi |
| 43B Marlborough RoadN19 4NA · Flat | £425,000 | Oct 2025 | 441 sq ft | £963 | 0.1 mi |
| 182C Sussex WayN19 4HZ · Flat | £345,000 | Jun 2025 | 495 sq ft | £697 | 0.2 mi |
| Flat 1, 55 St Johns VillasN19 3EE · Flat | £197,500 | Feb 2026 | 603 sq ft | £328 | 0.2 mi |
| 3 Ringmer GardensN19 4SB · Flat | £351,400 | Mar 2025 | 506 sq ft | £695 | 0.2 mi |
| Flat 1, 162 Fairbridge RoadN19 3HU · Flat | £465,000 | Oct 2025 | 452 sq ft | £1,029 | 0.2 mi |
| Ground Floor Flat, 22 Marlborough RoadN19 4NB · Flat | £480,000 | Dec 2024 | 506 sq ft | £949 | 0.1 mi |
What buyers have paid in N19
Completed sales in the last 12 months, against the 12 months before
| Type | Sales | Average price | Average size | Per sq ft | On the year |
|---|---|---|---|---|---|
| All homes | 169 | £708,731 | 892 sq ft | £815 | −3.2% |
| Flats | 124 | £539,153 | 686 sq ft | £772 | +0.8% |
| Terraced | 36 | £1,192,420 | 1,456 sq ft | £906 | +0.6% |
| Semi-detached | 3 | £1,784,167 | – | – | +16.3% |
| Detached | 1 | £2,250,000 | – | – | – |
Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.
Energy performance data © Crown copyright. Licensed under the Open Government Licence v3.0.
Floor area and energy rating from the energy certificate of May 2019.
This page is built from public records. Is this your home? Claim it with your email and mobile to correct its details and add what has changed; your name and contact details are never shown. Something wrong? Contact us.