11 Grass Hays, Aylesbury, HP21 7AJ
About 11 Grass Hays
11 Grass Hays is a four-bedroom semi-detached house in Aylesbury (HP21 7AJ). It has a recorded floor area of 154 m² (around 1656 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (July 2011) shows a C (score 75), near the top of the C band. The latest certificate is from July 2011, so improvements made since then won't be reflected.
At 154 m² the property is well over the postcode median (98 m² across 6 EPCs), placing it in the larger end of the local stock. Sold February 2020 for £440,000. Across the public record there are 5 sales, relatively high churn for a single property. 5 planning records sit against the property, 4 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 2006–2020, sale prices on this property compounded at 7.5% per year. Today's modelled estimate of £512,000 is 16.4% above the 2020 sale price.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Dining roomYes
- EnsuiteYes
- StudyYes
Outside
- GarageYes
Energy performance
11 Grass Hays's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 04 Jul 2021
EPC Rating
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
From £795 · Includes VAT
Planning history
Council records include a part-single-part-two-storey side and rear extension at 11 Grass Hays.
5 applications on record at 11 Grass Hays, Aylesbury, HP21 7AJ
- May 2006ExtensionFullOutcome in report
Extension: Part single, part two storey · Side and rear of property
Part single, part two storey side and rear extensions.
- Documents
- 7 docs on file
- Reference
- 06/00771/APP
- More recent applications — locked
- OutbuildingNov 2007Decision
- ExtensionMar 2007Decision
+ 2 more applications in the report
Unlock 11 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- Every decision — granted, refused or withdrawn (5 on record)
- All 5 applications on this property in full, plus 3 notable nearby
- The 37 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
Sale price has at least doubled since 2006.
£512,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.5% per year over 14 years.
£440,000
Growth on file: 7.5% per year over 14 years.
Sales timeline
13 February 2020Most recent
£440,000
11 November 2016
£439,950
+39.7%over 5 years22 August 2011
£315,000
+80.0%over 4 years14 September 2006
£175,000
+8.9%over 7 months15 February 2006
£160,700
Median price across the last 5 sales in HP21 7AJ: £348,000 (2025–2020).
Versus other Grass Hays homes
11 Grass Hays outperforms the street on epc rating by a wide margin.
Price per m²
£2,860
Street avg £3,625
Floor Area
154 m²
Street avg 95 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
CO₂ Emissions
3.6 t/year
Street avg 4.1 t/year
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







