20 Butler Avenue, Harrow, HA1 4EH
About 20 Butler Avenue
20 Butler Avenue is a four-bedroom detached house in Harrow (HA1 4EH). It has a recorded floor area of 174 m² (around 1873 sq ft), construction records dating it to 1900-1929 and council tax band F. The latest certificate (September 2016) shows an F (score 23), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 67), a 2-band jump.
It hasn't traded since October 2000, a hold of 26 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 174 m² the property is well over the postcode median (99 m² across 19 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £865,000 sits 179.1% above the 2000 sale of £309,950. On a £-per-square-foot basis, the last sale (£165/sq ft) was about 45.9% below the postcode norm.
Know exactly what you're buying at 20 Butler 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
- Bedrooms4
- Bathrooms2
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenYes
- DrivewayYes
Building
- RefurbishedYes
Energy performance
20 Butler Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Planning history
20 Butler Avenue has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 20 Butler 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.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
20 Butler Avenue valuation sits well clear of the typical sold price in this postcode.
£865,000
Modelled from EPC, postcode comparables.
£309,950
Recorded with HM Land Registry.
Sales timeline
5 October 2000Most recent
£309,950
Median price across the last 5 sales in HA1 4EH: £470,000 (2025–2019).
Everything we know about 20 Butler 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
- Larger development activity nearby

Versus other Butler Avenue homes
20 Butler Avenue is notably below the street on price per m².
Price per m²
£1,781
Street avg £4,507
Floor Area
174 m²
Street avg 131 m²
Habitable Rooms
7 rooms
Street avg 7 rooms
CO₂ Emissions
14.0 t/year
Street avg 6.1 t/year
Similar properties nearby
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