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40 The Firs, Brill, Aylesbury, HP18 9RY

EPC B
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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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

Pick your report · from £14.99

One time fee only - money back guarantee

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

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

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.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on 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.

Current estimate

£348,000

Modelled from EPC, postcode comparables.

See how we calculated this

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).

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
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

Pick your report · from £14.99

One time fee only - money back guarantee

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
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

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.

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
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.