21a, Flamsted Avenue, Wembley, HA9 6DL
About 21a
21a is a semi-detached house in Wembley (HA9 6DL). It has a recorded floor area of 81 m² (around 872 sq ft), construction records dating it to 1930-1949 and council tax band C. At 81 m² this is the 17th smallest of 33 units on EPC record in the building, where floor areas span 27–172 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (June 2024) shows an E (score 50), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 78), a 2-band jump.
Held since May 2004 — that's 22 years off the open market, well above the local norm. Today's modelled estimate of £327,000 sits 172.5% above the 2004 sale of £120,000. On a £-per-square-foot basis, the last sale (£138/sq ft) was about 47.2% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 84% of similar EPCs).
Know exactly what you're buying at 21a
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
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
21a has no planning applications on record.
Notable planning nearby
9applications of note in the surrounding area
We flagged 2 things worth checking at 21a
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
21a valuation sits well clear of the typical sold price in this postcode.
£327,000
Modelled from EPC, postcode comparables.
£120,000
Recorded with HM Land Registry.
Sales timeline
4 May 2004Most recent
£120,000
Median price across the last 5 sales in HA9 6DL: £595,000 (2022–2016).
Nearby sales in HA9 6DL
Everything we know about 21a, 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
21a is notably below the street on epc rating.
Price per m²
£1,481
Street avg £1,451
Floor Area
81 m²
Street avg 69 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
5.2 t/year
Street avg 3.2 t/year
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