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40 The Firs, Brill, Aylesbury, HP18 9RY

EPC B

Estimated value

£348,000

  • Against HP18 9RY's recent median (£372,000)-6%

Newest record on this page: March 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Semi-detached
Habitable rooms
5
From EPC
Floor area
80 m²
861 sq ft
Energy rating
B
Score 86
Council tax
Band C
Tenure
Social Rental
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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

£348,000

  • Against HP18 9RY's recent median (£372,000)-6%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 40 The Firs is modelled from its 80 m² EPC floor area, the absence of a recorded sale and recent sales of comparable homes in HP18 9RY. 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

    80 m² from the EPC lodged in March 2026

  • Sales of this home

    No sale recorded since 1995

  • Recent sales in HP18 9RY

    5 sales, median £372,000 (2024–2018)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: January 2024Latest 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.

40 The Firs has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

No sales recorded with HM Land Registry

That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.

Median price across the last 5 sales in HP18 9RY: £372,000 (2024–2018).

Risks

What this page doesn't show

1 potential issue has already been flagged for 40 The Firs, Brill, Aylesbury, HP18 9RY. 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 40 The Firs

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

40 The Firs is a semi-detached house in Brill, Aylesbury, Aylesbury (HP18 9RY). It has a recorded floor area of 80 m² (around 861 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (March 2026) returns a high B (score 86), putting the home a stone's throw from an A rating. When first surveyed in October 2019 the rating was E, the property has climbed 3 bands since. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Good to Very Good and hot-water efficiency went from Very Poor to Average; while window efficiency dropped from Good to Average and lighting dropped from Very Good to Good. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.

At 80 m² the property is well over the postcode median (46 m² across 17 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 82% of similar EPCs).

Before you decide

Everything you need to know about 40 The Firs

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.

40 The Firs's carbon output is low for the local stock.

Current Certificate(1 of 2)
Mar 2026

EPC Rating

A
B
B86
C
D
E
F
G
Main Heating
Heat Pump
Main Fuel
Electric
Hot Water
Average
Windows
Average
CO2 Emissions
0.3 t/year
Occupancy
Rented

Certificate validity

Valid until 6 March 2036

9 years remaining

Property Improvements

Changes detected from historical EPC data

Mar 2026from Oct 2019
EPC improved fromE39toB86
Heating System
Gas BoilerHeat Pump

Heat pump installed, significantly improving energy efficiency

Main Fuel
LPGElectric

Changed to a more efficient fuel source

Heating Controls
Prog + TRVsFull

Heating controls upgraded for better temperature management

Hot Water
Very PoorAverage

Hot water efficiency improved

Walls
AverageGood

Wall insulation improved

Roof
GoodVery Good

Roof insulation improved

Low Energy Lighting
78%100%

More low energy lighting installed

Renewable Energy
NoneSolar PV

Solar PV panels (60 kWp) installed

Planning

Planning history

Applications and permits filed against 40 The Firs, Brill, Aylesbury, HP18 9RY, sourced from the PlanIt planning register.

40 The Firs 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 The Firs homes

Four headline reads against 17 similar houses on this street, drawn from the latest EPC and Land Registry data.

On co₂ emissions, 40 The Firs stands well clear of the street.

EPC Rating

86 (B)

Street avg 60 (D)

Strongly above

Floor Area

80 m²

Street avg 57 m²

Strongly above

CO₂ Emissions

0.3 t/year

Street avg 3.3 t/year

Strongly above

Habitable Rooms

5 rooms

Street avg 3 rooms

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

0.3 km

Church Street — bus stop.

Closest school

0.2 km

Brill Church of England School. 2 schools nearby.

Nearest schools

  • Brill Church of England SchoolPrimary156m
  • Oakley Church of England Combined SchoolPrimary2.8km

Nearest stops

  • Church StreetBus stop344m
  • The SquareBus stop471m
  • TramhillBus stop827m
  • Leatherslade FarmBus 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 9RY from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for HP18 9RY

Daytime· 07:00 – 23:00

42.5dB

Low
Night-time road noise heatmap for HP18 9RY

Night-time· 23:00 – 07:00

35.6dB

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

Mid 20th centurySemi-Detached HouseEPC BNo mains gas

Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.

From £955 · 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.
£350k

1 Abbot Walk, Long Crendon

HP18 9EL

£342k

1 Bradley Close, Oakley

HP18 9QS

3 bed1 bath
£355k

1 Brae Hill Close, Brill

HP18 9TE

£339k

1 Clarkes Field Close, Brill

HP18 9SP

£373k

1 Burns Close, Long Crendon

HP18 9BX

2 bed1 bath
£376k

1 Brae Hill, Brill

HP18 9TB

£318k

1 Brook Close, Ludgershall

HP18 9NP

£385k

1 Brissenden Farm Cottages, Ickford Road, Worminghall

HP18 9LA

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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 40 The Firs is modelled from its 80 m² EPC floor area, the absence of a recorded sale and recent sales of comparable homes in HP18 9RY. 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. No sale is recorded for 40 The Firs, which usually means it hasn't changed hands since 1995 or the sale was not for value. 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 40 The Firs was lodged in March 2026 at band B and is valid until March 2036. 2 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 40 The Firs. 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 9 stops listed are measured in a straight line from HP18 9RY, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
40 The Firs 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.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 40 The Firs, Brill, Aylesbury, HP18 9RY. Each answer is also embedded as structured data for search engines.

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