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21 Firmin Avenue, Boughton Monchelsea, Maidstone, ME17 4RD

4 sales on record

Estimated value

£506,000

  • Since the 2021 sale (£450,000)+12%
  • Against ME17 4RD's recent median (£490,000)+3%

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

Learn about this valuation
Property type
Detached
Bedrooms
4
Bathrooms
3
Floor area
137 m²
1475 sq ft
Energy rating
C
Score 74
Council tax
Band F
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

£506,000

  • Against its 2021 sale (£450,000)+12%
  • Against ME17 4RD's recent median (£490,000)+3%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Firmin Avenue is modelled from its 137 m² EPC floor area, its 4 recorded sales and recent sales of comparable homes in ME17 4RD. 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

    137 m² from the EPC lodged in September 2025

  • Sales of this home

    4 sales recorded, the latest in 2021

  • Recent sales in ME17 4RD

    5 sales, median £490,000 (2026–2017)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: June 2026Latest 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.

21 Firmin Avenue has more than doubled in price since the earliest registered sale in 2000.

Sales timeline

  1. 16 March 2021Most recent

    £450,000

    +34.3%over 9 years

  2. 9 December 2011

    £335,000

    +34.0%over 9 years

  3. 1 August 2002

    £250,000

    +28.2%over 1 year

  4. 20 September 2000

    £195,000

Median price across the last 5 sales in ME17 4RD: £490,000 (2026–2017).

Risks

What this page doesn't show

1 potential issue has already been flagged for 21 Firmin Avenue, Boughton Monchelsea, Maidstone, ME17 4RD. 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 21 Firmin Avenue

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

21 Firmin Avenue is a four-bedroom detached house in Boughton Monchelsea, Maidstone, Maidstone (ME17 4RD). It has a recorded floor area of 137 m² (around 1475 sq ft), construction records dating it to 1996-2002 and council tax band F. The latest certificate (September 2025) shows a C (score 74). The rating has held steady at C across 2 certificates since May 2011. Between certificates, roof efficiency went from Good to Very Good and lighting went from Average to Good; while window efficiency dropped from Average to Poor. Records show the property has been extended at some point in its history.

Last sale on file: £450,000 in March 2021. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 2000–2021, sale prices on this property compounded at 4.2% per year. Today's modelled estimate of £506,000 is 12.4% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£305/sq ft) was about 45.3% above the typical sold price in the postcode.

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
  • Bathrooms3
  • CloakroomYes
  • StudyYes

Outside

  • Private gardenRear
  • GarageYes

Building

  • Central heatingYes
  • Previously extendedYes
Before you decide

Everything you need to know about 21 Firmin Avenue

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

  • 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 2)
Sept 2025

EPC Rating

A
B
C
C74
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
3.0 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 12 September 2035

8 years remaining

Property Improvements

Changes detected from historical EPC data

Sept 2025from May 2011
Roof Insulation
InsulatedWell Insulated

Loft insulation upgraded to recommended levels

Low Energy Lighting
30%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 21 Firmin Avenue, Boughton Monchelsea, Maidstone, ME17 4RD, sourced from the PlanIt planning register.

21 Firmin Avenue has no planning applications on record.

3

But the area is active

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

On the street

Versus other Firmin Avenue homes

Four headline reads against 9 similar houses on this street, drawn from the latest EPC and Land Registry data.

On co₂ emissions, 21 Firmin Avenue stands well clear of the street.

Price per m²

£3,285

Street avg £3,550

Below

Floor Area

137 m²

Street avg 119 m²

Strongly above

Habitable Rooms

8 rooms

Street avg 7 rooms

Strongly above

CO₂ Emissions

3.0 t/year

Street avg 4.1 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 Maidstone district page.
Full Maidstone report

Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.

Crime

144/mo

Steady year-on-year across the wider district.

Nearest stop

0.4 km

Wrangleden Road — bus stop.

Closest school

0.7 km

Leigh Academy Tree Tops. 16 schools nearby.

Nearest schools

  • Leigh Academy Tree TopsPrimary678m
  • The Holy Family Catholic Primary SchoolPrimary740m
  • Leigh Academy MolehillPrimary1.1km
  • Leigh Academy OaksPrimary1.2km

Nearest stops

  • Wrangleden RoadBus stop443m
  • Furfield CloseBus stop493m
  • Swan ApartmentsBus stop602m
  • Jordan CloseBus stop626m

Most reported crime locally

  • Violence & Sexual Offences676 reports34%
  • Anti-social Behaviour391 reports19%
  • Criminal Damage & Arson196 reports10%
  • Other Theft178 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 ME17 4RD from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for ME17 4RD

Daytime· 07:00 – 23:00

47.3dB

Low
Night-time road noise heatmap for ME17 4RD

Night-time· 23:00 – 07:00

37.2dB

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 2 HomeBuyer Report

Late 20th centuryDetached HouseEPC C

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £795 · 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.
£473k

1 Brooker Close, Boughton Monchelsea

ME17 4UY

4 bed
£549k

1 Braeburn Way, Coxheath

ME17 4FU

4 bed2 bath
£382k

1 Alchins Cottages, Heath Road, Linton

ME17 4NT

4 bed1 bath
£699k

1 Amsbury Road, Coxheath

ME17 4DW

4 bed2 bath
£722k

1 Cliff Cottages, Cliff Hill, Boughton Monchelsea

ME17 4NQ

4 bed
£409k

1 Broad Drive, Boughton Monchelsea

ME17 4SW

3 bed2 bath
£395k

1 Campfield Cottages, Haste Hill Road, Boughton Monchelsea

ME17 4LR

3 bed1 bath
£315k

1 Aspian Drive, Coxheath

ME17 4JZ

3 bed2 bath

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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 21 Firmin Avenue is modelled from its 137 m² EPC floor area, its 4 recorded sales and recent sales of comparable homes in ME17 4RD. 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. 4 sales are recorded for 21 Firmin Avenue. 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 21 Firmin Avenue was lodged in September 2025 at band C and is valid until September 2035. 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 21 Firmin Avenue. 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 14 months, which places each incident at an approximate point. The 16 schools and 30 stops listed are measured in a straight line from ME17 4RD, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
21 Firmin Avenue is in council tax band F. 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 21 Firmin Avenue, Boughton Monchelsea, Maidstone, ME17 4RD. Each answer is also embedded as structured data for search engines.

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