17 Dennis Avenue, Wembley, HA9 8AZ
About 17 Dennis Avenue
17 Dennis Avenue is an end-of-terrace house in Wembley (HA9 8AZ). It has a recorded floor area of 46 m² (around 495 sq ft) and construction records dating it to 2007-2011. The latest certificate (July 2023) shows a C (score 80), near the top of the C band. The rating has held steady at C across 2 certificates since July 2013. Between certificates, wall efficiency went from Poor to Good and window efficiency went from Average to Good. At 46 m² this is the 4th smallest of 24 units on EPC record in the building, where floor areas span 26–161 m². The building's EPC ratings span F to B across 24 units on file.
Untraded for 19 years, with the last transfer in February 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. 6 planning records sit against the property, 2 approved, 3 refused. Past consents include subdivision, meaningful when judging how the property has evolved. Today's modelled estimate of £286,000 is 19.2% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£485/sq ft) was about 97.9% above the typical sold price in the postcode.
Know exactly what you're buying at 17 Dennis 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
17 Dennis Avenue's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Cavity wall insulation installed
Floor insulation added or improved
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- Sept 2010SubdivisionFullIn report
Conversion of property from a house in multiple occupation (HMO) and 9 self-contained studio flats to 10 self-contained flats (comprising 7 one-bedroom and 3 studio flats), replacement of integral garage door with a new window, installation of 2 front rooflights and provision of 5 off-street parking spaces and refuse-storage area to front garden, subject to a Deed of Agreement dated 02/09/2010 under Section 106 of the Town and Country Planning Act 1990 (as amended)
- Agent
- Robson Walsh Chartered Surveyors
- Documents
- 8 docs on file
- Reference
- 10/1317
- Apr 2010HMOFullIn report
Retrospective application for change of use and conversion of the premises to a house in multiple occupation (HMO) and 9 self-contained studio flats
- Agent
- Robson Walsh
Retrospective- Documents
- 8 docs on file
- Reference
- 09/2542
We flagged 2 things worth checking at 17 Dennis 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
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Sales history & valuation
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£286,000
Modelled from EPC, postcode comparables.
£240,000
Recorded with HM Land Registry.
Sales timeline
23 February 2007Most recent
£240,000
Median price across the last 5 sales in HA9 8AZ: £505,000 (2022–2012).
Everything we know about 17 Dennis 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 Dennis Avenue homes
EPC Rating
80 (C)
Street avg 75 (C)
Floor Area
46 m²
Street avg 49 m²
CO₂ Emissions
1.1 t/year
Street avg 1.6 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Similar properties nearby
1 Crown Walk
HA9 8HU
1 Ennerdale Court, Windermere Avenue
HA9 8QZ
1 Chamberlayne Avenue
HA9 8SR
1 Dennis Avenue
HA9 8AZ
1 Aylands Close
HA9 8PJ
1 Elliott Close
HA9 8JH
1 Glendale Gardens
HA9 8PR
1 Ennerdale Gardens
HA9 8QY
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
Cecil Avenue (HA9) — bus stop.
Closest school
0.3 km
Park Lane Primary 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
54.1dB

Night-time· 23:00 – 07:00
45.5dB