Flat 1, 13 Cornwall Avenue, Haringey, London, N22 7DA
About Flat 1
Flat 1 is a mid-terrace house in Haringey, London, London (N22 7DA). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (June 2023) shows a C (score 75), near the top of the C band. When first surveyed in September 2014 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good, window efficiency went from Average to Good and lighting went from Good to Very Good.
At 72 m² it's 27.6% smaller than the typical home in the postcode (100 m² median across 34 EPCs). Its energy rating outperforms most of the postcode (better than 79% of similar EPCs). On a £-per-square-foot basis, the last sale (£644/sq ft) was about 68.7% above the typical sold price in the postcode. Most recent transfer: October 2022 at £498,747. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Flat 1
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
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Window efficiency improved
Wall insulation improved
Roof insulation improved
More low energy lighting installed
Changed to a more efficient fuel source
Planning history
Flat 1 has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at Flat 1
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 landed in the post-pandemic price surge — useful context when reading the figure.
£530,000
Modelled from EPC, postcode comparables.
£498,747
Recorded with HM Land Registry.
Sales timeline
13 October 2022Most recent
£498,747
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 Flat 1, 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
Years Held for Flat 1 lags the street by a wide margin.
Price per m²
£6,927
Street avg £4,887
Floor Area
72 m²
Street avg 64 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
2.1 t/year
Street avg 3.0 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