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6 Windmill Street, Brill, Aylesbury, HP18 9SZ

Estimated value

£533,000

  • Since the 2020 sale (£435,000)+23%
  • Against HP18 9SZ's recent median (£575,000)-7%

Newest record on this page: December 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
End terrace
Bedrooms
4
Bathroom
1
Floor area
103 m²
1109 sq ft
Energy rating
D
Score 55
Council tax
Band D
Tenure
Owner Occupied
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Valuation

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

£533,000

  • Against its 2020 sale (£435,000)+23%
  • Against HP18 9SZ's recent median (£575,000)-7%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 6 Windmill Street is modelled from its 103 m² EPC floor area, its 2 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

    103 m² from the EPC lodged in March 2019

  • Sales of this home

    2 sales recorded, the latest in 2020

  • Recent sales in HP18 9SZ

    5 sales, median £575,000 (2025–2020)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: December 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Sales timeline

  1. 14 February 2020Most recent

    £435,000

    +85.1%over 8 years

  2. 9 December 2011

    £235,000

Median price across the last 5 sales in HP18 9SZ: £575,000 (2025–2020).

Risks

What this page doesn't show

1 potential issue has already been flagged for 6 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

Overview

About 6 Windmill Street

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

6 Windmill Street is a four-bedroom end-of-terrace house in Brill, Aylesbury, Aylesbury (HP18 9SZ). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (March 2019) shows a D (score 55), a step below the typical UK home. When first surveyed in February 2011 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Good and window efficiency went from Poor to Good; while hot-water efficiency dropped from Good to Poor and main heating dropped from Good to Poor. The recommended improvements would push it to C (score 74). Main heating runs on lpg. Period features are noted in the property record.

Across 2011–2020, sale prices on this property compounded at 7.8% per year. Today's modelled estimate of £533,000 is 22.5% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£392/sq ft) was about 15.7% above the typical sold price in the postcode. Sold February 2020 for £435,000.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms4
  • Bathrooms1
  • Open-plan layoutYes
  • Dining roomYes
  • Utility roomYes
  • CloakroomYes
  • FireplaceYes

Outside

  • Private gardenYes

Building

  • Period featuresYes
  • RefurbishedYes
Before you decide

Everything you need to know about 6 Windmill Street

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate(1 of 3)
Mar 2019

EPC Rating

A
B
C
D
D55
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Poor
Windows
Good
CO2 Emissions
3.5 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 7 March 2029

2 years remaining

Property Improvements

Changes detected from historical EPC data

Jun 2016from Feb 2011
EPC improved fromE39toF26
Main Fuel
GasLPG

Fuel source changed

Heating Controls
Prog + StatFull

Heating controls upgraded for better temperature management

Hot Water
GoodPoor

Hot water efficiency decreased

Windows
Mostly DoubleFull Double

Windows upgraded, improving insulation

Walls
Very PoorPoor

Wall insulation improved

Low Energy Lighting
30%0%

Low energy lighting percentage decreased

Mar 2019from Jun 2016
EPC improved fromF26toD55
Roof
Very PoorGood

Roof insulation improved

Low Energy Lighting
0%58%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 6 Windmill Street, Brill, Aylesbury, HP18 9SZ, sourced from the PlanIt planning register.

6 Windmill Street has no planning applications on record.

2

But the area is active

2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

On the street

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 co₂ emissions, 6 Windmill Street stands well clear of the street.

Price per m²

£4,223

Street avg £4,032

On par

Floor Area

103 m²

Street avg 103 m²

On par

Habitable Rooms

5 rooms

Street avg 5 rooms

Below

CO₂ Emissions

3.5 t/year

Street avg 6.6 t/year

Strongly above
Area

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.
Full Aylesbury report

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.

Noise

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 road noise heatmap for HP18 9SZ

Daytime· 07:00 – 23:00

44.4dB

Low
Night-time road noise heatmap for HP18 9SZ

Night-time· 23:00 – 07:00

36.1dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraSemi-Detached HouseEPC DPre-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 £1,085 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£535k

1 Brookside, Oakley

HP18 9PN

3 bed1 bath
£688k

1 Bridge Road, Ickford

HP18 9HU

5 bed
£723k

1 Burts Lane, Long Crendon

HP18 9AJ

3 bed2 bath
£342k

1 Bradley Close, Oakley

HP18 9QS

3 bed1 bath
£887k

1 Ashtree Cottages, Thame Road, Chilton

HP18 9LJ

5 bed
£1.2m

1 Carters Lane, Long Crendon

HP18 9DE

5 bed
£373k

1 Burns Close, Long Crendon

HP18 9BX

2 bed1 bath
£528k

1 Canon Court Farm, Thame Road, Chilton

HP18 9LT

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 6 Windmill Street is modelled from its 103 m² EPC floor area, its 2 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. 2 sales are recorded for 6 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 6 Windmill Street was lodged in March 2019 at band D and is valid until March 2029. 3 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 6 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
6 Windmill Street is in council tax band D. 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.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 6 Windmill Street, Brill, Aylesbury, HP18 9SZ. Each answer is also embedded as structured data for search engines.

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