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Get startedAnnexe is a semi-detached house in Booker, High Wycombe, High Wycombe (HP12 4SA). It has a recorded floor area of 25 m² (around 264 sq ft), construction records dating it to 1991-1995 and council tax band A. The latest certificate (August 2011) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it C (June 2009); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The latest certificate is from August 2011, so improvements made since then won't be reflected.
At 25 m² it sits well below the postcode median (98 m² across 11 EPCs), making it one of the more compact homes locally.
Annexe's carbon output is low for the local stock.
This certificate is over 10 years old and is no longer valid.Expired 31 Aug 2021
Annexe has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£180,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
On floor area, Annexe runs well behind the street norm.
EPC Rating
67 (D)
Street avg 59 (D)
Floor Area
25 m²
Street avg 104 m²
CO₂ Emissions
1.3 t/year
Street avg 5.0 t/year
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.5 km
Squirrel Lane — bus stop.

Daytime· 07:00 – 23:00
52.8dB

Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in HP12 4SA: £510,500 (2025–2022).
Habitable Rooms
2 rooms
Street avg 5 rooms
Closest school
0.6 km
Booker Hill Primary School & Nursery. 13 schools nearby.
Night-time· 23:00 – 07:00
44.2dB