16a, Butler Avenue, Harrow, HA1 4EH
About 16a
16a is a detached house in Harrow (HA1 4EH). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (January 2025) shows an F (score 35), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 63), a 2-band jump. 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, with this unit at the bottom.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Know exactly what you're buying at 16a
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
16a sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Planning history
16a has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 16a
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
16a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£448,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in HA1 4EH: £470,000 (2025–2019).
Everything we know about 16a, 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
EPC Rating for 16a lags the street by a wide margin.
EPC Rating
35 (F)
Street avg 65 (D)
Floor Area
85 m²
Street avg 82 m²
CO₂ Emissions
7.5 t/year
Street avg 3.5 t/year
Habitable Rooms
5 rooms
Street avg 3 rooms
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