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21 Highbury Hill, Islington, London, N5 1SU

3 sales on record4 planning records
Property type
End terrace
Bedrooms
6
Bathrooms
3
Floor area
403 m²
4338 sq ft
Energy rating
D
Score 60
Council tax
Band H
Tenure
Owner Occupied
Overview

About 21 Highbury Hill

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

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.

Before you offer

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.

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Valuation

against the asking price

Risks

planning & flood

Sold prices

similar homes nearby

Trends

the local market

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms6
  • Bathrooms3

Outside

  • Private gardenRear
  • GarageYes
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

21 Highbury Hill's carbon output runs well above what efficient homes in the postcode produce.

EPC Rating

A
B
C
D
D60
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
16.0 t/year
Occupancy
Owner Occupied
Planning

Planning history

Applications and permits filed against 21 Highbury Hill, Islington, London, N5 1SU, sourced from the PlanIt planning register.

Council records include a two-storey rear extension at 21 Highbury Hill.

  1. Mar 2025
    Tree WorksTrees
    In 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
    View planning record
  2. Oct 2025
    ExtensionFull
    In 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
    View planning record

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.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

Latest sale on 21 Highbury Hill was the highest on Land Registry record across the postcode.

Current estimate

£4,252,000

Modelled from EPC, postcode comparables and a sale-price growth of 14.0% per year over 25 years.

See how we calculated this
Last sold (2025)

£6,675,000

Growth on file: 14.0% per year over 25 years.

Sales timeline

  1. 30 March 2025Most recent

    £6,675,000

    +203.4%over 18 years
  2. 18 April 2006

    £2,200,000

    +780.0%over 6 years
  3. 4 February 2000

    £250,000

Median price across the last 5 sales in N5 1SU: £1,395,000 (2025–2023).

Before you offer

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?
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On the street

Versus other Highbury Hill homes

Four headline reads against 16 similar houses on this street, drawn from the latest EPC and Land Registry data.

Years Held for 21 Highbury Hill lags the street by a wide margin.

Price per m²

£16,563

Street avg £11,664

Strongly above

Floor Area

403 m²

Street avg 352 m²

Above

Habitable Rooms

10 rooms

Street avg 10 rooms

Below

CO₂ Emissions

16.0 t/year

Street avg 15.8 t/year

On par
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the London district page.

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.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around N5 1SU from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for N5 1SU

Daytime· 07:00 – 23:00

51.8dB

Low
Night-time road noise heatmap for N5 1SU

Night-time· 23:00 – 07:00

41.8dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Highbury Hill, Islington, London, N5 1SU. Each answer is also embedded as structured data for search engines.