6a, Butler Avenue, Harrow, HA1 4EH
About 6a
6a is a four-bedroom detached house in Harrow (HA1 4EH). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (November 2023) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 91), a 2-band jump.
Today's modelled estimate of £473,000 is 28.7% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£461/sq ft) was about 52.7% above the typical sold price in the postcode. At 74 m² it's 25.3% smaller than the typical home in the postcode (99 m² median across 19 EPCs). Most recent transfer: April 2024 at £367,500.
Know exactly what you're buying at 6a
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
- Bedrooms4
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
6a has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 6a
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
6a valuation sits well clear of the typical sold price in this postcode.
£473,000
Modelled from EPC, postcode comparables.
£367,500
Recorded with HM Land Registry.
Sales timeline
3 April 2024Most recent
£367,500
Median price across the last 5 sales in HA1 4EH: £491,500 (2025–2018).
Everything we know about 6a, 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
Years Held for 6a lags the street by a wide margin.
Price per m²
£4,966
Street avg £4,109
Floor Area
74 m²
Street avg 142 m²
Habitable Rooms
4 rooms
Street avg 7 rooms
CO₂ Emissions
2.9 t/year
Street avg 7.3 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