3a, Willow Avenue, Denham, Uxbridge, UB9 4AF
About 3a
3a is a two-bedroom semi-detached house in Denham, Uxbridge, Uxbridge (UB9 4AF). It has a recorded floor area of 131 m² (around 1410 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (May 2025) shows a C (score 73). The rating has held steady at C across 3 certificates since July 2011. Between certificates, roof efficiency went from Good to Very Good and lighting went from Good to Very Good; while wall efficiency dropped from Good to Poor and window efficiency dropped from Very Good to Average. The recommended improvements would push it to B (score 84). The home occupies a cul-de-sac position.
Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). Across 2015–2021, sale prices on this property compounded at 5.8% per year. Today's modelled estimate of £642,000 is 33.7% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£340/sq ft) was about 40.7% above the typical sold price in the postcode. 3 planning records sit against the property, 0 approved, 1 refused. Last sale on file: £480,000 in April 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms2
Outside
- DrivewayYes
- Cul-de-sacYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Wall insulation upgraded
More low energy lighting installed
Heating controls upgraded for better temperature management
Hot water efficiency improved
Roof insulation improved
More low energy lighting installed
Planning history
A a loft conversion application was refused at 3a in 2021.
- Nov 2022FullIn report
Front dormer window
- Agent
- Stuart Bowen & Co
- Documents
- 7 docs on file
- Reference
- PL/22/3465/FA
- Dec 2021AmendmentIn report
Certificate of lawfulness for existing construction of hip to gable roof extension, rear dormer windows and 2 front rooflights and new side window
- Agent
- Uxbridge Design
Retrospective- Documents
- 5 docs on file
- Reference
- PL/21/3525/EU
We flagged 1 thing worth checking at 3a
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.
- A planning decision worth checking
30-day money-back guarantee
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£642,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 6 years.
£480,000
Growth on file: 5.8% per year over 6 years.
Sales timeline
6 April 2021Most recent
£480,000
+39.1%over 5 years27 May 2015
£345,000
Median price across the last 5 sales in UB9 4AF: £500,000 (2025–2015).
Nearby sales in UB9 4AF
4a, Willow Avenue, Denham, Uxbridge, UB9 4AF
Sold Oct 2025
£705,0001a, Willow Avenue, Denham, Uxbridge, UB9 4AF
Sold Mar 2025
£500,0002a, Willow Avenue, Denham, Uxbridge, UB9 4AF
Sold Mar 2020
£490,000Mill Stream Cottage, Willow Avenue, Denham, Uxbridge, UB9 4AF
Sold Nov 2016
£725,000Old Mill House, Willow Avenue, Denham, Uxbridge, UB9 4AF
Sold Apr 2015
£499,999
Versus other Willow Avenue homes
EPC Rating for 3a runs comfortably ahead of the street norm.
Price per m²
£3,664
Street avg £4,487
Floor Area
131 m²
Street avg 127 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
3.7 t/year
Street avg 4.8 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
7/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Oakside — bus stop.
Closest school
0.9 km
Hermitage Primary School. 17 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
54.2dB

Night-time· 23:00 – 07:00
47.4dB







