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Get started11 Brook Street is a two-bedroom detached house in Aston Clinton, Aylesbury, Aylesbury (HP22 5ES). It has a recorded floor area of 116 m² (around 1249 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (February 2026) returns a high B (score 85), putting the home a stone's throw from an A rating. When first surveyed in August 2022 the rating was D, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Average to Good; while wall efficiency dropped from Average to Poor and lighting dropped from Very Good to Good. The recommended improvements would push it to A (score 93). This certificate was lodged in the last six months, so the rating reflects current condition.
One planning record on file: a loft conversion approved in 2023. Past consents include a loft conversion, meaningful when judging how the property has evolved. At 116 m² it's 26.1% larger than the typical home in the postcode (92 m² median across 27 EPCs). Its energy rating outperforms most of the postcode (better than 85% of similar EPCs). On a £-per-square-foot basis, the last sale (£392/sq ft) was about 31.8% above the typical sold price in the postcode. Most recent transfer: February 2023 at £490,000.
The EPC has just been inspected, so the rating reflects current condition.
Householder application for loft conversion (part retrospective)
11 Brook Street valuation sits well clear of the typical sold price in this postcode.
£494,000
Modelled from EPC, postcode comparables.
£490,000
Recorded with HM Land Registry.
EPC Rating for 11 Brook Street runs comfortably ahead of the street norm.
Price per m²
£4,224
Street avg £4,377
Floor Area
116 m²
Street avg 121 m²
Habitable Rooms
5 rooms
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
0.2 km

Daytime· 07:00 – 23:00
47.9dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Loft insulation upgraded to recommended levels
Are we missing something? Tell us about home improvements to help adjust your valuation.
9 February 2023Most recent
£490,000
Median price across the last 5 sales in HP22 5ES: £580,000 (2025–2023).
25 Brook Street Aston Clinton Aylesbury
Sold Sept 2025
30 Brook Street Aston Clinton Aylesbury
Sold Sept 2025
14 Brook Street Aston Clinton Aylesbury
Sold Aug 2025
42 Brook Street Aston Clinton Aylesbury
Sold Feb 2025
3 Brook Street Aston Clinton Aylesbury
Sold Dec 2023
Street avg 5 rooms
CO₂ Emissions
3.2 t/year
Street avg 5.2 t/year
HP22 5JT
Weston Road — bus stop.
Closest school
0.4 km
Aston Clinton School. 2 schools nearby.
Night-time· 23:00 – 07:00
38.6dB
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