10a, Butler Avenue, Harrow, HA1 4EH
About 10a
10a is a two-bedroom detached house in Harrow (HA1 4EH). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1900-1929 and council tax band C. Tenure is freehold. The latest certificate (April 2025) shows a D (score 60), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2013. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Good to Very Good. The recommended improvements would push it to C (score 77). At 85 m² this is the 4th smallest of 20 units on EPC record in the building, where floor areas span 24–174 m². The building's EPC ratings span F to C across 20 units on file. Period features are noted in the property record.
Last sale on file: £375,000 in May 2019. Across the public record there are 4 sales, relatively high churn for a single property. Across 1997–2019, sale prices on this property compounded at 7% per year. Today's modelled estimate of £445,000 is 18.7% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£410/sq ft) was about 29.5% above the typical sold price in the postcode.
Know exactly what you're buying at 10a
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
- Bedrooms2
- Bathrooms1
Outside
- Private gardenYes
Building
- TenureFreehold
- Period featuresYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
More low energy lighting installed
Planning history
10a has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 10a
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
Price for 10a has grown more than fourfold since the 1997 starting point.
£445,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 21 years.
£375,000
Growth on file: 7.0% per year over 21 years.
Sales timeline
27 May 2019Most recent
£375,000
+37.4%over 11 years24 April 2008
£273,000
+49.2%over 5 years10 July 2002
£183,000
+110.3%over 4 years28 November 1997
£87,000
Median price across the last 5 sales in HA1 4EH: £491,500 (2025–2018).
Everything we know about 10a, 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 Butler Avenue homes
10a is notably below the street on epc rating.
Price per m²
£4,412
Street avg £4,212
Floor Area
85 m²
Street avg 82 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
4.2 t/year
Street avg 3.8 t/year
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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
0.2 km
Lascelles Avenue — bus stop.
Closest school
0.4 km
St Anselm's Catholic 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
53.9dB
Night-time· 23:00 – 07:00
44.0dB