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21 Thornden, Cowfold, Horsham, RH13 8AG

2 planning records

Estimated value

£587,000

  • Since the 2021 sale (£480,000)+22%
  • Against RH13 8AG's recent median (£560,000)+5%

Newest record on this page: March 2025. 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
3
Bathrooms
2
Floor area
97 m²
1044 sq ft
Energy rating
E
Score 47
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

£587,000

  • Against its 2021 sale (£480,000)+22%
  • Against RH13 8AG's recent median (£560,000)+5%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Thornden is modelled from its 97 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in RH13 8AG. 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

    97 m² from the EPC lodged in May 2020

  • Sales of this home

    1 sale recorded, the latest in 2021

  • Recent sales in RH13 8AG

    5 sales, median £560,000 (2025–2021)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: March 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 of 2 applicationsFull 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. 6 January 2021Most recent

    £480,000

Median price across the last 5 sales in RH13 8AG: £560,000 (2025–2021).

Risks

What this page doesn't show

1 potential issue has already been flagged for 21 Thornden, Cowfold, Horsham, RH13 8AG. 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

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Overview

About 21 Thornden

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

21 Thornden is a three-bedroom detached house in Cowfold, Horsham, Horsham (RH13 8AG). It has a recorded floor area of 97 m² (around 1044 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (May 2020) shows an E (score 47), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 70), a 2-band jump. Main heating runs on oil.

2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, a porch and a loft conversion, meaningful when judging how the property has evolved. Today's modelled estimate of £587,000 is 22.3% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£460/sq ft) was about 35.9% above the typical sold price in the postcode. At 97 m² it's 18.1% smaller than the typical home in the postcode (119 m² median across 12 EPCs). Most recent transfer: January 2021 at £480,000. 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
  • Bathrooms2
  • EnsuiteYes

Outside

  • Private gardenYes
Before you decide

Everything you need to know about 21 Thornden

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.

21 Thornden's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate
May 2020

EPC Rating

A
B
C
D
E
E47
F
G
Main Heating
Gas
Main Fuel
Oil
Hot Water
Average
Windows
Average
CO2 Emissions
6.4 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 31 May 2030

3 years remaining
Planning

Planning history

Applications and permits filed against 21 Thornden, Cowfold, Horsham, RH13 8AG, sourced from the PlanIt planning register.

2 applications on record at 21 Thornden, Cowfold, Horsham, RH13 8AG

2decisions2extensions29documents9nearby
  1. Apr 2021
    Loft ConversionOutline
    Outcome in report

    Construction of a rear dormer (Certificate of Lawfulness - Proposed)

    Documents
    12 docs on file
    Reference
    DC/21/0278
    Full record in report
  2. More recent applications — locked
  3. PorchDecision

Unlock 21 Thornden, Cowfold, Horsham, RH13 8AG's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (2 on record)
  • All 2 applications on this property in full, plus 9 notable nearby
  • The 29 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Thornden homes

Four headline reads against 12 similar houses on this street, drawn from the latest EPC and Land Registry data.

21 Thornden is notably below the street on epc rating.

Price per m²

£4,948

Street avg £5,583

Above

Floor Area

97 m²

Street avg 127 m²

Below

Habitable Rooms

4 rooms

Street avg 5 rooms

Below

CO₂ Emissions

6.4 t/year

Street avg 6.5 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

118/mo

Falling year-on-year across the wider district.

Nearest stop

0.4 km

Brook Farm — bus stop.

Closest school

0.3 km

St Peter's CofE (Aided) Primary School. 1 school nearby.

Nearest schools

  • St Peter's CofE (Aided) Primary SchoolPrimary268m

Nearest stops

  • Brook FarmBus stop395m
  • Village HallBus stop401m
  • South LeasBus stop621m
  • Capons FarmBus stop635m

Most reported crime locally

  • Violence & Sexual Offences646 reports36%
  • Anti-social Behaviour339 reports19%
  • Criminal Damage & Arson170 reports10%
  • Public Order135 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 RH13 8AG from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for RH13 8AG

Daytime· 07:00 – 23:00

49.6dB

Low
Night-time road noise heatmap for RH13 8AG

Night-time· 23:00 – 07:00

43.4dB

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 centuryDetached BungalowEPC ENo mains gas

Because the property has no mains gas supply, 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.
£563k

1 Barrack Cottages, Brighton Road, Shermanbury

RH13 8HQ

3 bed
£550k

1 Butchers Row, West Grinstead

RH13 8NF

3 bed1 bath
£474k

1 Champions Gate Cottages, Cowfold Road, West Grinstead

RH13 8LZ

3 bed1 bath
£781k

1 Bowshotts Cottages, Cowfold Road, West Grinstead

RH13 8LY

3 bed2 bath
£438k

1 Alley Groves, Cowfold

RH13 8BN

3 bed2 bath
£436k

1 Buckwood Cottages, Worthing Road, West Grinstead

RH13 8GH

3 bed1 bath
£413k

1 Baileys Cottages, Brooks Green Road, Coolham

RH13 8GR

3 bed2 bath
£738k

1 Church Gate, Red Lane, Shipley

RH13 8PH

4 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 21 Thornden is modelled from its 97 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in RH13 8AG. 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. 1 sale is recorded for 21 Thornden. 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 Thornden was lodged in May 2020 at band E and is valid until May 2030. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. 2 applications are matched to 21 Thornden. 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 1 school and 23 stops listed are measured in a straight line from RH13 8AG, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
21 Thornden 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 Thornden, Cowfold, Horsham, RH13 8AG. Each answer is also embedded as structured data for search engines.

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