12 Jansel Square, Aylesbury, HP21 7ES
About 12 Jansel Square
12 Jansel Square is a mid-terrace house in Aylesbury (HP21 7ES). It has a recorded floor area of 71 m² (around 764 sq ft) and construction records dating it to 1950-1966. At 71 m² this is the smallest unit on EPC record across the building (71–78 m²). The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (44 versus a best of 60). The latest certificate (September 2017) shows an E (score 44), well below the UK norm with real room to improve. When first surveyed in January 2009 the rating was G, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Average and main heating went from Very Poor to Average. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity.
Today's modelled estimate of £205,000 is 44.6% below the 2017 sale of £370,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. Last sold in May 2017, so it's been off the market for around 9 years.
Everything you need to know about 12 Jansel Square
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
12 Jansel Square's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Single glazing replaced with double or better glazing
Wall insulation improved
Heating system upgraded to a more efficient system
Heating controls changed
Hot water system upgraded
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
12 Jansel Square has no planning applications on record.
But the area is active
3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
£205,000
Modelled from EPC, postcode comparables.
£370,000
Recorded with HM Land Registry.
Sales timeline
17 May 2017Most recent
£370,000
Median price across the last 1 sales in HP21 7ES: £150,000 (1999–1999).
Nearby sales in HP21 7ES
Versus other Jansel Square homes
On floor area, 12 Jansel Square runs well behind the street norm.
EPC Rating
44 (E)
Street avg 50 (E)
Floor Area
71 m²
Street avg 78 m²
CO₂ Emissions
6.8 t/year
Street avg 6.2 t/year
Habitable Rooms
3 rooms
Street avg 5 rooms
Everything you need to know about 12 Jansel Square
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
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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
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Jansell Square — bus stop.
Closest school
0.3 km
Bedgrove Junior 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
49.1dB
Night-time· 23:00 – 07:00
38.9dB