7 Chalfont Avenue, Wembley, HA9 6NW
About 7 Chalfont Avenue
7 Chalfont Avenue is a semi-detached house in Wembley (HA9 6NW). It has a recorded floor area of 147 m² (around 1582 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (April 2022) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80).
Untraded for 21 years, with the last transfer in January 2005. At 147 m² the property is well over the postcode median (106 m² across 8 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £674,000 sits 169.6% above the 2005 sale of £250,000. On a £-per-square-foot basis, the last sale (£158/sq ft) was about 63.8% below the postcode norm. 3 planning records sit against the property, 2 approved, 0 refused. Past consents include a loft conversion and an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 7 Chalfont 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
Energy performance
EPC Rating
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- Feb 2026SubdivisionFullIn report
Conversion of single dwelling house into 2x self-contained flats, with demolition of existing side outbuilding and proposed relocation of ground floor rear door, cycle and refuse storage spaces, associated landscaping and amenity space.
- Agent
- Faluck Patel
Demolition- Documents
- 12 docs on file
- Reference
- 26/0397
- Mar 2019Loft ConversionOutlineIn report
Certificate of lawfulness for proposed hip to gable end roof extension with addition of rear dormer and two rooflights to the front roof slope of dwellinghouse
- Agent
- FALUCK RAMAN PATEL
- Documents
- 3 docs on file
- Reference
- 19/0267
We flagged 2 things worth checking at 7 Chalfont 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.
- Signs of HMO activity in the area
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
7 Chalfont Avenue valuation sits well clear of the typical sold price in this postcode.
£674,000
Modelled from EPC, postcode comparables.
£250,000
Recorded with HM Land Registry.
Sales timeline
18 January 2005Most recent
£250,000
Median price across the last 5 sales in HA9 6NW: £540,000 (2024–2017).
Nearby sales in HA9 6NW
Everything we know about 7 Chalfont 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
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other Chalfont Avenue homes
Price per m² for 7 Chalfont Avenue lags the street by a wide margin.
Price per m²
£1,701
Street avg £4,836
Floor Area
147 m²
Street avg 103 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
CO₂ Emissions
5.5 t/year
Street avg 4.6 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
0.2 km
Wyld Way — bus stop.
Closest school
0.4 km
Oakington Manor Primary School. 46 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
54.3dB

Night-time· 23:00 – 07:00
45.9dB