15a, Cholmeley Park, Haringey, London, N6 5ET
About 15a
15a is a four-bedroom semi-detached house in Haringey, London, London (N6 5ET). It has a recorded floor area of 181 m² (around 1948 sq ft), construction records dating it to 1950-1966 and council tax band F. Tenure is freehold. The latest certificate (October 2017) shows an F (score 28), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 62), a 2-band jump. Other recorded features include a self-contained annexe. Our model identifies extension potential, subject to local planning policy.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 10 planning records sit against the property, 5 approved, 0 refused. Past consents include an annexe, an extension, new windows and tree works, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£939/sq ft) was about 50.8% above the typical sold price in the postcode. On the market in April 2018 and unlisted since — roughly 8 years.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- EnsuiteYes
Outside
- Private gardenRear
- ParkingOff street
Building
- TenureFreehold
- Extension potentialPossible
Energy performance
15a sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Planning history
15a has been through 5 approved planning applications — a well-evolved property.
- Apr 2026AnnexOutlineIn report
Certificate of lawfulness for proposed use or development, to carry out internal works to the property to remove unauthorised annexe flat, to revert the use solely to as a one single family dwellinghouse (C3).
- Documents
- 8 docs on file
- Reference
- HGY/2026/0469
- Feb 2026Tree WorksTreesIn report
T1, T1 T3 Leyland cypress - remove and stump grind. (Trees form part of an old hedge) client plans ro remove overgrown trees and replant suitable hedge
- Documents
- 5 docs on file
- Reference
- HGY/2026/0148
We flagged 1 thing worth checking at 15a
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
15a valuation sits well clear of the typical sold price in this postcode.
£1,853,000
Modelled from EPC, postcode comparables.
£1,830,000
Recorded with HM Land Registry.
Sales timeline
26 April 2018Most recent
£1,830,000
Median price across the last 5 sales in N6 5ET: £942,000 (2024–2020).
Nearby sales in N6 5ET
9 Cholmeley Park, Haringey, London, N6 5ET
Sold Jun 2024
£942,0007a, Cholmeley Park, Haringey, London, N6 5ET
Sold Sept 2021
£1,065,0009a, Cholmeley Park, Haringey, London, N6 5ET
Sold Feb 2021
£1,030,0007 Cholmeley Park, Haringey, London, N6 5ET
Sold Oct 2020
£750,0003 Cholmeley Park, Haringey, London, N6 5ET
Sold Nov 2016
£2,650,000
Versus other Cholmeley Park homes
On years held, 15a runs well behind the street norm.
Price per m²
£10,110
Street avg £8,242
Floor Area
181 m²
Street avg 232 m²
Habitable Rooms
6 rooms
Street avg 8 rooms
CO₂ Emissions
16.0 t/year
Street avg 8.9 t/year
Similar properties nearby
1 Dukes Head Yard, Haringey
N6 5JQ
1 Hill Gate Walk, Haringey
N6 5RU
1 Cholmeley Crescent, Haringey
N6 5EZ
1 Claremont Road, Haringey
N6 5DA
1 Oldfield Mews, Haringey
N6 5XA
1 Milton Park, Haringey
N6 5QB
1 Hillside Gardens, Haringey
N6 5SU
1 Netherleigh Close, Hornsey Lane, Islington
N6 5LL
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
7/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Northwood Road — bus stop.
Closest school
0.6 km
St Aloysius' College. 59 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
54.1dB

Night-time· 23:00 – 07:00
44.8dB







