15 Grass Hays, Aylesbury, HP21 7AJ
About 15 Grass Hays
15 Grass Hays is a semi-detached house in Aylesbury (HP21 7AJ). It has a recorded floor area of 130 m² (around 1399 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (May 2018) shows a C (score 70).
At 130 m² the property is well over the postcode median (98 m² across 6 EPCs), placing it in the larger end of the local stock. Most recent transfer was January 2025 at £485,000 — fresh data. One planning record on file: an extension approved in 2004. Past consents include an extension, meaningful when judging how the property has evolved. Across 1995–2025, sale prices on this property compounded at 7% per year. On a £-per-square-foot basis, the last sale (£347/sq ft) was about 30.5% above the typical sold price in the postcode.
Everything you need to know about 15 Grass Hays
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
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Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
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Planning history
Council records include a two-storey side and rear extension at 15 Grass Hays.
1 application on record at 15 Grass Hays, Aylesbury, HP21 7AJ
- Jun 2004ExtensionFullOutcome in report
Extension: Two storey · Side and rear of property
Two storey side and rear extension
- Documents
- 4 docs on file
- Reference
- 04/01076/APP
Unlock 15 Grass Hays, Aylesbury, HP21 7AJ's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 3 notable nearby
- The 4 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 15 Grass Hays was the highest on Land Registry record across the postcode.
£491,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 30 years.
£485,000
Growth on file: 7.0% per year over 30 years.
Sales timeline
17 January 2025Most recent
£485,000
+18.3%over 6 years3 September 2018
£410,000
-1.2%3 September 2018
£415,000
+45.6%over 6 years4 October 2011
£285,000
+72.2%over 7 years26 March 2004
£165,500
+153.6%over 8 years29 March 1995
£65,250
Median price across the last 5 sales in HP21 7AJ: £348,000 (2023–2020).
Versus other Grass Hays homes
15 Grass Hays is notably below the street on years held.
Price per m²
£3,731
Street avg £3,480
Floor Area
130 m²
Street avg 99 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
CO₂ Emissions
4.3 t/year
Street avg 4.0 t/year
Everything you need to know about 15 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