39 Thornden, Cowfold, Horsham, RH13 8AG
About 39 Thornden
39 Thornden is a four-bedroom detached house in Cowfold, Horsham, Horsham (RH13 8AG). It has a recorded floor area of 230 m² (around 2476 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (August 2025) shows a D (score 58), a step below the typical UK home. When first surveyed in October 2017 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good; while lighting dropped from Very Good to Good. Main heating runs on oil.
At 230 m² the property is well over the postcode median (109 m² across 12 EPCs), placing it in the larger end of the local stock. Across 1995–2018, sale prices on this property compounded at 6.3% per year. Today's modelled estimate of £809,000 is 41.9% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£230/sq ft) was about 36.5% below the postcode norm. Last changed hands 8 years ago, in July 2018. One historical planning record sits against the property in 2009.
What this property has
Inside
- Bedrooms4
- Bathrooms3
- EnsuiteYes
Outside
- Private gardenWest-facing
- GarageYes
Building
- Central heatingYes
- RefurbishedYes
Energy performance
39 Thornden's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 5 August 2035
Property Improvements
Changes detected from historical EPC data
Roof insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,360 · Includes VAT
Planning history
1 application on record at 39 Thornden, Cowfold, Horsham, RH13 8AG
- Oct 2009MixedFullOutcome in report
Replacement of 3 dormer windows with 1 and demolition of 1 garage
- Documents
- 11 docs on file
- Reference
- DC/09/1600
Unlock 39 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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 9 notable nearby
- The 11 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Price for 39 Thornden has grown more than fourfold since the 1995 starting point.
£809,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.3% per year over 23 years.
£570,000
Growth on file: 6.3% per year over 23 years.
Sales timeline
18 July 2018Most recent
£570,000
+36.4%over 10 years11 October 2007
£418,000
+207.4%over 12 years21 February 1995
£136,000
Median price across the last 5 sales in RH13 8AG: £560,000 (2025–2021).
Nearby sales in RH13 8AG
35 Thornden, Cowfold, Horsham, RH13 8AG
Sold Mar 2025
£560,00037 Thornden, Cowfold, Horsham, RH13 8AG
Sold Feb 2025
£532,50033 Thornden, Cowfold, Horsham, RH13 8AG
Sold Aug 2023
£550,00011 Thornden, Cowfold, Horsham, RH13 8AG
Sold Jun 2021
£675,00031 Thornden, Cowfold, Horsham, RH13 8AG
Sold Jan 2021
£560,000
Versus other Thornden homes
On price per m², 39 Thornden runs well behind the street norm.
Price per m²
£2,478
Street avg £5,789
Floor Area
230 m²
Street avg 116 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
9.3 t/year
Street avg 6.2 t/year
Similar properties nearby
1 Church Gate, Red Lane, Shipley
RH13 8PH
1 Carylls Meadow, West Grinstead
RH13 8HW
1 Bowshotts Cottages, Cowfold Road, West Grinstead
RH13 8LY
1 Coach House Mews, Horsham Road, Cowfold
RH13 8BU
1 Barrack Cottages, Brighton Road, Shermanbury
RH13 8HQ
1 Butchers Row, West Grinstead
RH13 8NF
1 Champions Gate Cottages, Cowfold Road, West Grinstead
RH13 8LZ
1 Alley Groves, Cowfold
RH13 8BN
The neighbourhood at a glance
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.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
49.6dB

Night-time· 23:00 – 07:00
43.4dB







