9 Grass Hays, Aylesbury, HP21 7AJ
About 9 Grass Hays
9 Grass Hays is a four-bedroom semi-detached house in Aylesbury (HP21 7AJ). It has a recorded floor area of 99 m² (around 1066 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (May 2021) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 79). Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
Untraded for 27 years, with the last transfer in November 1999. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £451,000 sits 272.7% above the 1999 sale of £121,000. On a £-per-square-foot basis, the last sale (£114/sq ft) was about 57.3% below the postcode norm.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenRear
- DrivewayYes
- Cul-de-sacYes
Building
- Heating systemGas
- Previously extendedYes
Everything you need to know about 9 Grass Hays
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
EPC Rating
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Planning history
9 Grass Hays 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
9 Grass Hays's estimated value is more than triple its earliest registered sale price (1999).
£451,000
Modelled from EPC, postcode comparables.
£121,000
Recorded with HM Land Registry.
Sales timeline
30 November 1999Most recent
£121,000
Median price across the last 5 sales in HP21 7AJ: £348,000 (2025–2020).
Versus other Grass Hays homes
On price per m², 9 Grass Hays runs well behind the street norm.
Price per m²
£1,222
Street avg £3,898
Floor Area
99 m²
Street avg 104 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.6 t/year
Street avg 3.9 t/year
Everything you need to know about 9 Grass Hays
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
Similar properties nearby
The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Welbeck Avenue — bus stop.
Closest school
0.5 km
Bedgrove Junior School. 22 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
51.0dB
Night-time· 23:00 – 07:00
41.0dB