25a, Chiltern Street, Aylesbury, HP21 8BN
About 25a
25a is a one-bedroom end-of-terrace house in Aylesbury (HP21 8BN). It has a recorded floor area of 40 m² (around 435 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (March 2009) shows a D (score 57), a step below the typical UK home. The recommended improvements would lift it to B (score 81), a 2-band jump. The latest certificate is from March 2009, so improvements made since then won't be reflected.
It hasn't traded since April 2004, a hold of 22 years that's notably long for the area. Across 1999–2004, sale prices on this property compounded at 18.3% per year. Today's modelled estimate of £192,000 sits 105.3% above the 2004 sale of £93,500. At 40 m² it sits well below the postcode median (68 m² across 17 EPCs), making it one of the more compact homes locally. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.
What this property has
Inside
- Bedrooms1
- Dining roomYes
Building
- Heating systemGas
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 02 Mar 2019
EPC Rating
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
From £495 · Includes VAT
Planning history
25a has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
25a has more than doubled in price since the earliest registered sale in 1999.
£192,000
Modelled from EPC, postcode comparables and a sale-price growth of 18.3% per year over 4 years.
£93,500
Growth on file: 18.3% per year over 4 years.
Sales timeline
29 April 2004Most recent
£93,500
+19.9%over 2 years28 March 2002
£78,000
+73.3%over 2 years23 December 1999
£45,000
Median price across the last 5 sales in HP21 8BN: £275,000 (2025–2022).
Nearby sales in HP21 8BN
Versus other Chiltern Street homes
25a is notably below the street on floor area.
Price per m²
£2,314
Street avg £3,021
Floor Area
40 m²
Street avg 76 m²
Habitable Rooms
2 rooms
Street avg 4 rooms
CO₂ Emissions
3.2 t/year
Street avg 4.1 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Stoke Road — bus stop.
Closest school
0.5 km
Aylesbury High School. 26 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
52.0dB

Night-time· 23:00 – 07:00
41.7dB







