Model valuation£417,0008 Busby Close
Local market context
12 Alwin Close, Aylesbury, HP21 8RP
1 planning record
Estimated value
£266,000
- Since the 1999 sale (£50,000)+432%
- Against HP21 8RP's recent median (£270,000)-1%
Newest record on this page: December 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
Mid terrace
Habitable rooms
5
From EPC
Floor area
79 m²
850 sq ft
Energy rating
C
Score 71
Council tax
Band B
Tenure
Owner Occupied
About this valuation
How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.
Our estimate
£266,000
- Against its 1999 sale (£50,000)+432%
- Against HP21 8RP's recent median (£270,000)-1%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 12 Alwin Close is modelled from its 79 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in HP21 8RP. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
What it's based on
Floor area
79 m² from the EPC lodged in March 2016
Sales of this home
2 sales recorded, the latest in 1999
Recent sales in HP21 8RP
5 sales, median £270,000 (2025–2019)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: December 2025 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | 1 application | Full history, plus nearby schemes |
| Flood risk | Not shown | Included |
Sales history & valuation
Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.
12 Alwin Close's modelled value sits at over four times its earliest registered sale price (1997).
Sales timeline
4 August 1999Most recent
£50,000
+7.0%over 2 years4 June 1997
£46,750
Median price across the last 5 sales in HP21 8RP: £270,000 (2025–2019).
Nearby sales in HP21 8RP
What this page doesn't show
1 potential issue has already been flagged for 12 Alwin Close, Aylesbury, HP21 8RP. The detail, evidence and what to ask about it are in the Risks Report.
- Larger development activity nearbyIn report
- Flood risk from rivers, sea and surface waterIn report
- Subsidence and ground-stability signalsIn report
- Refusals, enforcement and big schemes nearbyIn report
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About 12 Alwin Close
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
12 Alwin Close is a mid-terrace house in Aylesbury (HP21 8RP). It has a recorded floor area of 79 m² (around 850 sq ft), construction records dating it to 1976-1982 and council tax band B. The latest certificate (March 2016) shows a C (score 71). The rating has held steady at C across 2 certificates since February 2016. Between certificates, wall efficiency went from Poor to Average. The recommended improvements would push it to B (score 89). The latest certificate is from March 2016, so improvements made since then won't be reflected.
It hasn't traded since August 1999, a hold of 27 years that's notably long for the area. Across 1997–1999, sale prices on this property compounded at 3.2% per year. Today's modelled estimate of £266,000 sits 432% above the 1999 sale of £50,000. On a £-per-square-foot basis, the last sale (£59/sq ft) was about 64.1% below the postcode norm. One planning record on file: an extension approved in 2025. Past consents include an extension, meaningful when judging how the property has evolved.
Before you decide
Everything you need to know about 12 Alwin Close
The true value, the hidden risks and the full sale history, in one report.
Larger development activity nearby
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 09 Mar 2026
Current Certificate(1 of 2)
Mar 2016
EPC Rating
A
B
C
C71
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.7 t/year
Occupancy
Owner Occupied
Certificate validity
Expired on 9 March 2026
Property Improvements
Changes detected from historical EPC data
Mar 2016from Feb 2016
Wall Insulation
UninsulatedPartial Insulation
Wall insulation upgraded
Planning history
Applications and permits filed against 12 Alwin Close, Aylesbury, HP21 8RP, sourced from the PlanIt planning register.
12 Alwin Close has an approved single-storey rear extension on the planning record.
1 application on record at 12 Alwin Close, Aylesbury, HP21 8RP
1decisions1extensions6documents2nearby
- Jan 2025ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.95m for which the maximum height would be 3m and for which the height of the eaves would be maximum 2.60m
- Documents
- 6 docs on file
- Reference
- 24/03623/HPDE
Unlock 12 Alwin Close, Aylesbury, HP21 8RP'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 2 notable nearby
- The 6 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Versus other Alwin Close homes
Four headline reads against 23 similar houses on this street, drawn from the latest EPC and Land Registry data.
Price per m² for 12 Alwin Close lags the street by a wide margin.
Price per m²
£633
Street avg £2,566
Floor Area
79 m²
Street avg 84 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
2.7 t/year
Street avg 3.2 t/year
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Aylesbury district page.
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
175/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Blackwater Drive — bus stop.
Closest school
0.2 km
Ashmead Combined School. 22 schools nearby.
Nearest schools
- Ashmead Combined SchoolPrimary180m
- The Mandeville SchoolSecondary487m
- Oak Green SchoolPrimary1.1km
- Sir Henry Floyd Grammar SchoolSecondary1.5km
Nearest stops
- Blackwater DriveBus stop102m
- Ellen Road ShopsBus stop132m
- Hannon RoadBus stop256m
- Welland RoadBus stop278m
Most reported crime locally
- Violence & Sexual Offences1,227 reports47%
- Anti-social Behaviour278 reports11%
- Other Theft203 reports8%
- Public Order191 reports7%
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
Modelled day and night-time noise levels around HP21 8RP from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
47.4dB
Night-time· 23:00 – 07:00
37.7dB
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
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Late 20th centuryMid-Terrace HouseEPC C
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Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
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Where every figure above comes from, how current it is and what it can't tell you.
- How the estimate is made
- The estimate for 12 Alwin Close is modelled from its 79 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in HP21 8RP. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
- Where sold prices come from
- Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 2 sales are recorded for 12 Alwin Close. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
- Reading the EPC
- Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 12 Alwin Close was lodged in March 2016 at band C and expired in March 2026, so a new one is needed to sell or let. 2 certificates are on record, which shows how the home has changed.
- Planning records
- Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 12 Alwin Close. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
- Area figures
- Crime is police-recorded street-level data over the last 15 months, which places each incident at an approximate point. The 22 schools and 30 stops listed are measured in a straight line from HP21 8RP, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
- Council tax band
- 12 Alwin Close is in council tax band B. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
Common questions
The questions buyers, sellers and homeowners most often ask about 12 Alwin Close, Aylesbury, HP21 8RP. Each answer is also embedded as structured data for search engines.
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- Every home in HP21 8RPSold prices, values and energy ratings for the postcode
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