Model valuation£417,0008 Busby Close
Local market context
4 Windmill Street, Brill, Aylesbury, HP18 9SZ
3 sales on record1 planning record
Estimated value
£330,000
- Since the 2025 sale (£308,000)+7%
- Against HP18 9SZ's recent median (£575,000)-43%
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
62 m²
667 sq ft
Energy rating
E
Score 41
Council tax
Band C
Tenure
Private Rental
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
£330,000
- Against its 2025 sale (£308,000)+7%
- Against HP18 9SZ's recent median (£575,000)-43%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 4 Windmill Street is modelled from its 62 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in HP18 9SZ. 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
62 m² from the EPC lodged in January 2023
Sales of this home
3 sales recorded, the latest in 2025
Recent sales in HP18 9SZ
5 sales, median £575,000 (2021–2020)
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.
Sales timeline
12 December 2025Most recent
£308,000
+32.5%over 5 years13 April 2020
£232,500
+5.7%over 7 years28 March 2013
£220,000
Median price across the last 5 sales in HP18 9SZ: £575,000 (2021–2020).
Nearby sales in HP18 9SZ
22 Windmill Street, Brill, Aylesbury, HP18 9SZ
Sold Jun 2021
£585,00015 Windmill Street, Brill, Aylesbury, HP18 9SZ
Sold Nov 2020
£575,00010 Windmill Street, Brill, Aylesbury, HP18 9SZ
Sold Aug 2020
£700,00028 Windmill Street, Brill, Aylesbury, HP18 9SZ
Sold Jun 2020
£300,0006 Windmill Street, Brill, Aylesbury, HP18 9SZ
Sold Feb 2020
£435,000
What this page doesn't show
1 potential issue has already been flagged for 4 Windmill Street, Brill, Aylesbury, HP18 9SZ. 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
One time fee only - money back guarantee
About 4 Windmill Street
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
4 Windmill Street is a mid-terrace house in Brill, Aylesbury, Aylesbury (HP18 9SZ). It has a recorded floor area of 62 m² (around 667 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (January 2023) shows an E (score 41), well below the UK norm with real room to improve. Earlier certificates rated it D (May 2012); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good; while wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on electricity.
Most recent transfer was December 2025 at £308,000 — fresh data. At 62 m² it sits well below the postcode median (99 m² across 12 EPCs), making it one of the more compact homes locally. One planning record on file: an extension approved in 2013. Past consents include an extension, meaningful when judging how the property has evolved. Across 2013–2025, sale prices on this property compounded at 2.7% per year. On a £-per-square-foot basis, the last sale (£462/sq ft) was about 42.4% above the typical sold price in the postcode.
Before you decide
Everything you need to know about 4 Windmill Street
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.
Recommended upgrades on file would lift this property by multiple EPC bands.
Current Certificate(1 of 2)
Jan 2023
EPC Rating
A
B
C
D
E
E41
F
G
Main Heating
Electric & Gas
Main Fuel
Electric
Hot Water
Poor
Windows
Average
CO2 Emissions
5.0 t/year
Occupancy
Rented
Certificate validity
Valid until 23 January 2033
Property Improvements
Changes detected from historical EPC data
Jan 2023from May 2012
EPC improved fromD61toE41
Heating System
Storage HeatersGas Boiler
Replaced storage heaters with gas boiler
Hot Water
AveragePoor
Hot water efficiency decreased
Low Energy Lighting
15%82%
More low energy lighting installed
Planning history
Applications and permits filed against 4 Windmill Street, Brill, Aylesbury, HP18 9SZ, sourced from the PlanIt planning register.
1 application on record at 4 Windmill Street, Brill, Aylesbury, HP18 9SZ
1decisions1extensions14documents2nearby
Flagged:Retrospective
- Aug 2013ExtensionFullOutcome in report
Removal of existing garage roof and doors. Reduce height of remaining garage wall, extension and new gates (Part retrospective)
Retrospective- Documents
- 14 docs on file
- Reference
- 13/01594/APP
Unlock 4 Windmill Street, Brill, Aylesbury, HP18 9SZ'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 14 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Versus other Windmill Street homes
Four headline reads against 12 similar houses on this street, drawn from the latest EPC and Land Registry data.
On years held, 4 Windmill Street runs well behind the street norm.
Price per m²
£4,968
Street avg £3,957
Floor Area
62 m²
Street avg 107 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.0 t/year
Street avg 6.5 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
77/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Church Street — bus stop.
Closest school
0.3 km
Brill Church of England School. 2 schools nearby.
Nearest schools
- Brill Church of England SchoolPrimary345m
- Oakley Church of England Combined SchoolPrimary2.6km
Nearest stops
- Church StreetBus stop235m
- The SquareBus stop271m
- TramhillBus stop709m
- Brill TurnBus stop2.1km
Most reported crime locally
- Violence & Sexual Offences444 reports48%
- Other Theft106 reports12%
- Criminal Damage & Arson88 reports10%
- Anti-social Behaviour83 reports9%
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 HP18 9SZ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
44.4dB
Night-time· 23:00 – 07:00
36.1dB
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
Get a survey for this property
Level 3 Building Survey
Victorian-eraMid-Terrace HouseEPC EPre-1919 buildNo mains gasSolid (non-cavity) walls
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£339k
1 Clarkes Field Close, Brill
HP18 9SP
£342k
1 Bradley Close, Oakley
HP18 9QS
3 bed1 bath
£318k
1 Brook Close, Ludgershall
HP18 9NP
£312k
1 Carson Cottages, The Green, Brill
HP18 9RU
1 bed1 bath
£350k
1 Abbot Walk, Long Crendon
HP18 9EL
£355k
1 Brae Hill Close, Brill
HP18 9TE
£303k
1 Ashfield Rise, Oakley
HP18 9QA
£373k
1 Burns Close, Long Crendon
HP18 9BX
2 bed1 bath
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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 4 Windmill Street is modelled from its 62 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in HP18 9SZ. 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. 3 sales are recorded for 4 Windmill Street. 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 4 Windmill Street was lodged in January 2023 at band E and is valid until January 2033. 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 4 Windmill Street. 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 12 months, which places each incident at an approximate point. The 2 schools and 10 stops listed are measured in a straight line from HP18 9SZ, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
- Council tax band
- 4 Windmill Street is in council tax band C. 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 4 Windmill Street, Brill, Aylesbury, HP18 9SZ. Each answer is also embedded as structured data for search engines.
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- Every home in HP18 9SZSold prices, values and energy ratings for the postcode
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- 4 Windmill Street, Brill, Aylesbury valuationHow the estimate is built and what moves it
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