4 Ashburnham Gardens, Harrow, HA1 2JH
About 4 Ashburnham Gardens
4 Ashburnham Gardens is a semi-detached house in Harrow (HA1 2JH). It has a recorded floor area of 154 m² (around 1658 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (July 2018) shows a C (score 69), just inside the C band. When first surveyed in November 2009 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Poor to Good, hot-water efficiency went from Poor to Good and lighting went from Very Poor to Good. The recommended improvements would push it to B (score 82).
Held since December 2009 — that's 16 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. On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £752,000 sits 173.5% above the 2009 sale of £275,000. On a £-per-square-foot basis, the last sale (£166/sq ft) was about 55.1% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include a loft conversion, an extension and a porch, meaningful when judging how the property has evolved.
Know exactly what you're buying at 4 Ashburnham Gardens
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
4 Ashburnham Gardens ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Roof insulation improved
More low energy lighting installed
Planning history
- Sept 2022Loft ConversionAmendmentIn report
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations and extension to roof to form end gable; rear dormer; two rooflights in front roofslope; window in end gable
- Documents
- 10 docs on file
- Reference
- P/2551/22
- Mar 2010PorchFullIn report
Extension: Single storey · Side and rear of property
Single storey side and rear extension; front porch.
Extension- Documents
- 12 docs on file
- Reference
- P/2932/09
We flagged 2 things worth checking at 4 Ashburnham Gardens
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.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£752,000
Modelled from EPC, postcode comparables.
£275,000
Recorded with HM Land Registry.
Sales timeline
11 December 2009Most recent
£275,000
Median price across the last 5 sales in HA1 2JH: £642,000 (2025–2008).
Nearby sales in HA1 2JH
Everything we know about 4 Ashburnham Gardens, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other Ashburnham Gardens homes
On epc rating, 4 Ashburnham Gardens stands well clear of the street.
Price per m²
£1,786
Street avg £4,147
Floor Area
154 m²
Street avg 154 m²
Habitable Rooms
6 rooms
Street avg 7 rooms
CO₂ Emissions
5.0 t/year
Street avg 6.9 t/year
Similar properties nearby
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1 Croft Villas, Bonnersfield Lane
HA1 2LF
1 Hill Crescent
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
28/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Harrow High School — bus stop.
Closest school
0.1 km
Harrow High School. 38 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
55.5dB

Night-time· 23:00 – 07:00
45.8dB