3 Cornwall Avenue, Haringey, London, N22 7DA
About 3 Cornwall Avenue
3 Cornwall Avenue is a four-bedroom mid-terrace house in Haringey, London, London (N22 7DA). It has a recorded floor area of 94 m² (around 1012 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (June 2016) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 88), a 2-band jump. Other recorded features include a balcony, outbuildings and attached land beyond the plot.
2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. Across 2020–2024, sale prices on this property compounded at 8.9% per year. Today's modelled estimate of £1,132,000 is 15.5% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£969/sq ft) was about 158.3% above the typical sold price in the postcode. Last sale on file: £980,000 in September 2024.
Know exactly what you're buying at 3 Cornwall Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Open-plan layoutYes
- Dining roomYes
- EnsuiteYes
Outside
- BalconyYes
- OutbuildingsYes
- LandYes
Building
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
- Sept 2022ExtensionFullIn report
Extension: Single storey · Rear of property
A single storey rear extension is proposed to replace the existing lean-to and to be built out square to the main house.
- Documents
- 7 docs on file
- Reference
- HGY/2022/2191
- Aug 2022Loft ConversionOutlineIn report
Certificate of lawfulness for proposed conversion of the loft including a rear dormer extension and three rooflights to the front.
- Documents
- 7 docs on file
- Reference
- HGY/2022/2232
We flagged 1 thing worth checking at 3 Cornwall Avenue
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
3 Cornwall Avenue valuation sits well clear of the typical sold price in this postcode.
£1,132,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.9% per year over 4 years.
£980,000
Growth on file: 8.9% per year over 4 years.
Sales timeline
17 September 2024Most recent
£980,000
+42.0%over 4 years11 August 2020
£690,000
Median price across the last 5 sales in N22 7DA: £1,050,000 (2025–2023).
Nearby sales in N22 7DA
27 Cornwall Avenue, Haringey, London, N22 7DA
Sold Apr 2025
£845,00023 Cornwall Avenue, Haringey, London, N22 7DA
Sold Mar 2025
£1,050,00030 Cornwall Avenue, Haringey, London, N22 7DA
Sold Dec 2024
£1,051,00025 Cornwall Avenue, Haringey, London, N22 7DA
Sold Nov 2024
£1,062,5005 Cornwall Avenue, Haringey, London, N22 7DA
Sold Dec 2023
£755,000
Everything we know about 3 Cornwall Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Cornwall Avenue homes
On price per m², 3 Cornwall Avenue stands well clear of the street.
Price per m²
£10,426
Street avg £5,912
Floor Area
94 m²
Street avg 114 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
3.6 t/year
Street avg 4.8 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Park Avenue Wood Green — bus stop.
Closest school
0.3 km
Heartlands High School. 63 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
55.0dB

Night-time· 23:00 – 07:00
44.6dB