1 Cowen Avenue, Harrow, HA2 0LU
About 1 Cowen Avenue
1 Cowen Avenue is a one-bedroom semi-detached house in Harrow (HA2 0LU). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 2003-2006 and council tax band B. The latest certificate (June 2025) shows a C (score 78), near the top of the C band. When first surveyed in May 2015 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good; while window efficiency dropped from Average to Poor. At 68 m² this is the 40th smallest of 71 units on EPC record in the building, where floor areas span 44–94 m². The building's EPC ratings span E to B across 71 units on file. Other recorded features include notable views.
Untraded for 18 years, with the last transfer in December 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £265,000 sits 68.8% above the 2007 sale of £157,000.
Know exactly what you're buying at 1 Cowen 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
- Bedrooms1
- Bathrooms1
Outside
- Private gardenYes
- GarageYes
- Notable viewsYes
Building
- Heating systemElectric
Energy performance
1 Cowen Avenue's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Cavity wall insulation installed
More low energy lighting installed
Planning history
1 Cowen Avenue has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 2 things worth checking at 1 Cowen 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.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£265,000
Modelled from EPC, postcode comparables.
£157,000
Recorded with HM Land Registry.
Sales timeline
14 December 2007Most recent
£157,000
Median price across the last 5 sales in HA2 0LU: £270,000 (2020–2015).
Everything we know about 1 Cowen 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
- Signs of HMO activity in the area
- Larger development activity nearby
Versus other Cowen Avenue homes
On epc rating, 1 Cowen Avenue stands well clear of the street.
Price per m²
£2,309
Street avg £2,903
Floor Area
68 m²
Street avg 60 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.4 t/year
Street avg 2.3 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Grange Road (HA2) — bus stop.
Closest school
0.5 km
Roxeth Primary School. 35 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
49.8dB
Night-time· 23:00 – 07:00
40.6dB