23a, Flamsted Avenue, Wembley, HA9 6DL
About 23a
23a is a semi-detached house in Wembley (HA9 6DL). 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 (December 2020) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75).
One planning record on file: a loft conversion approved in 2001. Past consents include a loft conversion, meaningful when judging how the property has evolved.
Know exactly what you're buying at 23a
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
EPC Rating
Planning history
- Jun 2001Loft ConversionFullIn report
Erection of side and rear dormer in roofslope to create room in roofspace of first-floor flat
- Agent
- Michael V S Hardiman & Associates Ltd
- Reference
- 01/0835
We flagged 2 things worth checking at 23a
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.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
23a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£353,000
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 HA9 6DL: £595,000 (2022–2016).
Nearby sales in HA9 6DL
Everything we know about 23a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other Flamsted Avenue homes
On habitable rooms, 23a stands well clear of the street.
EPC Rating
64 (D)
Street avg 62 (D)
Floor Area
85 m²
Street avg 69 m²
CO₂ Emissions
3.5 t/year
Street avg 3.3 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
15/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Flamsted Avenue — bus stop.
Closest school
0.5 km
Elsley Primary School. 39 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
52.5dB

Night-time· 23:00 – 07:00
44.2dB