15 Cornwall Avenue, Haringey, London, N22 7DA
About 15 Cornwall Avenue
15 Cornwall Avenue is a four-bedroom mid-terrace house in Haringey, London, London (N22 7DA). It has a recorded floor area of 128 m² (around 1376 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (March 2009) shows an E (score 44), well below the UK norm with real room to improve. The latest certificate is from March 2009, so improvements made since then won't be reflected.
Held since July 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £902,000 sits 121.1% above the 2009 sale of £408,000. On a £-per-square-foot basis, the last sale (£297/sq ft) was about 23.9% below the postcode norm. At 128 m² it's 29.1% larger than the typical home in the postcode (99 m² median across 34 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs). 2 planning records sit against the property, 0 approved, 1 refused.
Know exactly what you're buying at 15 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
Energy performance
15 Cornwall Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 16 Mar 2019
EPC Rating
Planning history
15 Cornwall Avenue has 2 separate extension applications on the council record.
- Jul 2021ExtensionOutlineIn report
Extension: Single storey · Rear of property
Erection of a single storey extension which extends beyond the rear wall of the original house by 5.15m, for which the maximum height would be 3m and for which the height of the eaves would be 2.9m
- Documents
- 7 docs on file
- Reference
- HGY/2021/1763
- Jun 2021ExtensionOutlineIn report
Extension: Single storey · Rear of property
Erection of a single storey extension which extends beyond the rear wall of the original house by 5.15m, for which the maximum height would be 3.7m and for which the height of the eaves would be 3.2m
- Documents
- 5 docs on file
- Reference
- HGY/2021/1317
We flagged 1 thing worth checking at 15 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
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£902,000
Modelled from EPC, postcode comparables.
£408,000
Recorded with HM Land Registry.
Sales timeline
26 July 2009Most recent
£408,000
Median price across the last 5 sales in N22 7DA: £1,050,000 (2025–2024).
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
£1,062,5003 Cornwall Avenue, Haringey, London, N22 7DA
Sold Sept 2024
£980,000
Everything we know about 15 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
15 Cornwall Avenue is notably below the street on co₂ emissions.
Price per m²
£3,192
Street avg £6,226
Floor Area
128 m²
Street avg 112 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
8.8 t/year
Street avg 4.6 t/year
Similar properties nearby
1 Harcourt Road, Haringey
N22 7XW
1 Dorset Road, Haringey
N22 7SL
1 Cornwall Avenue, Haringey
N22 7DA
1 Alexandra Avenue, Haringey
N22 7XE
1 Outram Road, Haringey
N22 7AB
1 Rhodes Avenue, Haringey
N22 7UR
1 Barratt Avenue, Haringey
N22 7EZ
1 Braemar Avenue, Haringey
N22 7BY
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