12 Cowley Close, Bierton, Aylesbury, HP22 5DQ
About 12 Cowley Close
12 Cowley Close is a two-bedroom semi-detached house in Bierton, Aylesbury, Aylesbury (HP22 5DQ). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (July 2018) shows an E (score 52), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 83), a 3-band jump. Our model identifies extension potential, subject to local planning policy.
Today's modelled estimate of £381,000 is 38% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£347/sq ft) was about 25.6% above the typical sold price in the postcode. Sold October 2018 for £276,000.
What this property has
Inside
- Bedrooms2
- Bathrooms1
- Dining roomYes
Outside
- Private gardenFront and rear
- GarageYes
Building
- Extension potentialPossible
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
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Planning history
12 Cowley Close has no planning applications on record.
But the area is active
7 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
12 Cowley Close valuation sits well clear of the typical sold price in this postcode.
£381,000
Modelled from EPC, postcode comparables.
£276,000
Recorded with HM Land Registry.
Sales timeline
14 October 2018Most recent
£276,000
Median price across the last 5 sales in HP22 5DQ: £385,000 (2025–2015).
Nearby sales in HP22 5DQ
14 Cowley Close, Bierton, Aylesbury, HP22 5DQ
Sold Nov 2025
£460,0008 Cowley Close, Bierton, Aylesbury, HP22 5DQ
Sold Jan 2022
£510,0004 Cowley Close, Bierton, Aylesbury, HP22 5DQ
Sold Jun 2021
£385,00013 Cowley Close, Bierton, Aylesbury, HP22 5DQ
Sold Jul 2018
£336,00016 Cowley Close, Bierton, Aylesbury, HP22 5DQ
Sold Oct 2015
£368,750
Versus other Cowley Close homes
12 Cowley Close is notably below the street on floor area.
Price per m²
£3,730
Street avg £3,839
Floor Area
74 m²
Street avg 91 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
4.8 t/year
Street avg 6.0 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
The Red Lion PH — bus stop.
Closest school
0.2 km
Bierton Church of England Combined School. 19 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
47.0dB

Night-time· 23:00 – 07:00
39.8dB







