21 Highbury Hill, Islington, London, N5 1SU
About 21 Highbury Hill
21 Highbury Hill is a six-bedroom end-of-terrace house in Islington, London, London (N5 1SU). It has a recorded floor area of 403 m² (around 4338 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (September 2024) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78).
Across 2000–2025, sale prices on this property compounded at 14% per year. Today's modelled estimate of £4,252,000 is 36.3% below the 2025 sale of £6,675,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£1,539/sq ft) was about 307.9% above the typical sold price in the postcode. At 403 m² the property is well over the postcode median (79 m² across 69 EPCs), placing it in the larger end of the local stock. 6 bedrooms is on the larger side for this postcode, where 5 is the typical count. It changed hands recently, sold March 2025 for £6,675,000. 4 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension and tree works, meaningful when judging how the property has evolved.
Know exactly what you're buying at 21 Highbury Hill
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms6
- Bathrooms3
Outside
- Private gardenRear
- GarageYes
Energy performance
21 Highbury Hill's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Council records include a two-storey rear extension at 21 Highbury Hill.
- Mar 2025Tree WorksTreesIn report
We want to remove the one large tree in the garden at the house - it is the only large tree in the garden so easy to locate
- Documents
- 2 docs on file
- Reference
- P2025/0942/TRE
- Oct 2025ExtensionFullIn report
Extension: Two storey · Rear of property
Proposed rear two-storey extension including external lightwell and external staircase with landing, rear lower ground floor doors, replacement dormer window with rear rooflight, replacement sashes throughout with double glazed units, new/altered rear landscaping and associated internal alterations/improvements.
- Documents
- 14 docs on file
- Reference
- P2025/1938/FUL
What's in 21 Highbury Hill, Islington, London, N5 1SU's planning history?
2 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
Latest sale on 21 Highbury Hill was the highest on Land Registry record across the postcode.
£4,252,000
Modelled from EPC, postcode comparables and a sale-price growth of 14.0% per year over 25 years.
£6,675,000
Growth on file: 14.0% per year over 25 years.
Sales timeline
30 March 2025Most recent
£6,675,000
+203.4%over 18 years18 April 2006
£2,200,000
+780.0%over 6 years4 February 2000
£250,000
Median price across the last 5 sales in N5 1SU: £1,395,000 (2025–2023).
Nearby sales in N5 1SU
Flat 2, 9 Highbury Hill, Islington, London, N5 1SU
Sold Sept 2025
£680,000Middle Floor Flat, 15 Highbury Hill, London, N5 1SU
Sold Feb 2025
£400,00017 Highbury Hill, Islington, London, N5 1SU
Sold Nov 2023
£5,700,00027 Highbury Hill, Islington, London, N5 1SU
Sold Oct 2023
£6,000,000Flat 6, 9 Highbury Hill, London, N5 1SU
Sold Mar 2023
£1,395,000
Everything we know about 21 Highbury Hill, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Highbury Hill homes
Years Held for 21 Highbury Hill lags the street by a wide margin.
Price per m²
£16,563
Street avg £11,664
Floor Area
403 m²
Street avg 352 m²
Habitable Rooms
10 rooms
Street avg 10 rooms
CO₂ Emissions
16.0 t/year
Street avg 15.8 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
8/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Highbury Barn — bus stop.
Closest school
0.1 km
Highbury Fields School. 92 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
51.8dB

Night-time· 23:00 – 07:00
41.8dB