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18 Alder Copse, Horsham, RH12 1LD

3 sales on record

Estimated value

£404,000

  • Since the 2021 sale (£355,000)+14%
  • Against RH12 1LD's recent median (£300,000)+35%

Newest record on this page: April 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
Bedrooms
3
Bathroom
1
Floor area
82 m²
883 sq ft
Energy rating
C
Score 69
Council tax
Band C
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

£404,000

  • Against its 2021 sale (£355,000)+14%
  • Against RH12 1LD's recent median (£300,000)+35%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 18 Alder Copse is modelled from its 82 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in RH12 1LD. 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

    82 m² from the EPC lodged in April 2021

  • Sales of this home

    3 sales recorded, the latest in 2021

  • Recent sales in RH12 1LD

    5 sales, median £300,000 (2026–2019)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: April 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.

18 Alder Copse has more than quadrupled in price since its earliest registered sale in 2001.

Sales timeline

  1. 23 June 2021Most recent

    £355,000

    +56.4%over 9 years

  2. 16 March 2012

    £227,000

    +211.0%over 10 years

  3. 29 July 2001

    £73,000

Median price across the last 5 sales in RH12 1LD: £300,000 (2026–2019).

Risks

What this page doesn't show

1 potential issue has already been flagged for 18 Alder Copse, Horsham, RH12 1LD. 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 18 Alder Copse

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

18 Alder Copse is a three-bedroom semi-detached house in Horsham (RH12 1LD). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (April 2021) shows a C (score 69), just inside the C band. When first surveyed in April 2011 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Average. The recommended improvements would push it to B (score 85). Period features are noted in the property record.

Across 2001–2021, sale prices on this property compounded at 8.3% per year. Today's modelled estimate of £404,000 is 13.8% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£402/sq ft) was about 61.2% above the typical sold price in the postcode. Sold June 2021 for £355,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

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

  • Bedrooms3
  • Bathrooms1
  • Dining roomYes
  • StudyYes

Outside

  • Private gardenYes
  • ParkingOff street

Building

  • Heating systemGas
  • Period featuresYes
  • RefurbishedYes
Before you decide

Everything you need to know about 18 Alder Copse

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 2)
Apr 2021

EPC Rating

A
B
C
C69
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
3.0 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 5 April 2031

4 years remaining

Property Improvements

Changes detected from historical EPC data

Apr 2021from Apr 2011
EPC improved fromD66toC69
Heating Controls
Prog + StatFull

Heating controls upgraded for better temperature management

Roof
AverageGood

Roof insulation improved

Low Energy Lighting
7%80%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 18 Alder Copse, Horsham, RH12 1LD, sourced from the PlanIt planning register.

18 Alder Copse has no planning applications on record.

1

But the area is active

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

On the street

Versus other Alder Copse homes

Four headline reads against 21 similar houses on this street, drawn from the latest EPC and Land Registry data.

On habitable rooms, 18 Alder Copse stands well clear of the street.

Price per m²

£4,329

Street avg £3,472

On par

Floor Area

82 m²

Street avg 77 m²

Above

Habitable Rooms

5 rooms

Street avg 4 rooms

Strongly above

CO₂ Emissions

3.0 t/year

Street avg 3.4 t/year

On par
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Horsham district page.
Full Horsham report

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

Crime

276/mo

Steady year-on-year across the wider district.

Nearest stop

0.3 km

Tower Close — bus stop.

Closest school

0.7 km

Arunside School, Horsham. 11 schools nearby.

Nearest schools

  • Arunside School, HorshamPrimary654m
  • St John's Catholic Primary SchoolPrimary654m
  • Tanbridge House SchoolSecondary881m
  • St Mary's CofE (Aided) Primary SchoolPrimary1.2km

Nearest stops

  • Tower CloseBus stop312m
  • Fellcott WayBus stop345m
  • Shandys CloseBus stop348m
  • Blackbridge Lane ShopsBus stop432m

Most reported crime locally

  • Violence & Sexual Offences1,282 reports31%
  • Anti-social Behaviour902 reports22%
  • Shoplifting681 reports16%
  • Criminal Damage & Arson315 reports8%

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 RH12 1LD from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for RH12 1LD

Daytime· 07:00 – 23:00

49.0dB

Low
Night-time road noise heatmap for RH12 1LD

Night-time· 23:00 – 07:00

39.0dB

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

Mid 20th centurySemi-Detached 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 £695 · 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.
£397k

1 Brockhurst Close

RH12 1UY

3 bed
£428k

1 Alder Copse

RH12 1LD

3 bed1 bath
£577k

1 Arundale Walk

RH12 1QW

3 bed2 bath
£464k

1 Barn Cottage, Talbot Lane

RH12 1ES

2 bed1 bath
£337k

1 Anchor Court, Talbot Lane

RH12 1ET

2 bed1 bath
£241k

1 Chichester Terrace

RH12 1DB

2 bed
£183k

1 Bishopric Court

RH12 1TH

2 bed1 bath
£289k

1 Brook Terrace, Talbot Lane

RH12 1ES

1 bed1 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 18 Alder Copse is modelled from its 82 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in RH12 1LD. 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 18 Alder Copse. 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 18 Alder Copse was lodged in April 2021 at band C and is valid until April 2031. 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 18 Alder Copse. 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 15 months, which places each incident at an approximate point. The 11 schools and 30 stops listed are measured in a straight line from RH12 1LD, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
18 Alder Copse 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 18 Alder Copse, Horsham, RH12 1LD. Each answer is also embedded as structured data for search engines.

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