423b, Alexandra Avenue, Harrow, HA2 9SE
About 423b
423b is a mid-terrace house in Harrow (HA2 9SE). It has a recorded floor area of 40 m² (around 431 sq ft) and construction records dating it to 1930-1949. The latest certificate (December 2020) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it C (February 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 75). At 40 m² this is the 13th smallest of 29 units on EPC record in the building, where floor areas span 25–123 m². The building's EPC ratings span E to C across 29 units on file.
At 40 m² it's 22.3% smaller than the typical home in the postcode (52 m² median across 28 EPCs).
Know exactly what you're buying at 423b
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
More low energy lighting installed
Planning history
423b has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
Sales history & valuation
423b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£258,000
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 HA2 9SE: £650,000 (2022–2018).
Nearby sales in HA2 9SE
Everything we know about 423b, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Alexandra Avenue homes
CO₂ Emissions for 423b runs comfortably ahead of the street norm.
EPC Rating
68 (D)
Street avg 59 (D)
Floor Area
40 m²
Street avg 54 m²
CO₂ Emissions
1.9 t/year
Street avg 2.9 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Similar properties nearby
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HA2 9AW
1 Bodmin Close, Kings Road
HA2 9LA
1 Barn Mews, Tithe Farm Avenue
HA2 9AE
1 Kings Road
HA2 9HY
1 Mirren Close
HA2 9BG
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
0.1 km
Warden Avenue — bus stop.
Closest school
0.6 km
Newton Farm Nursery, Infant and Junior School. 40 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
50.9dB

Night-time· 23:00 – 07:00
40.0dB