23 Thornden, Cowfold, Horsham, RH13 8AG
About 23 Thornden
23 Thornden is a three-bedroom detached house in Cowfold, Horsham, Horsham (RH13 8AG). It has a recorded floor area of 93 m² (around 1003 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (February 2011) shows an E (score 50), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 73), a 2-band jump. The latest certificate is from February 2011, so improvements made since then won't be reflected. Our model identifies extension potential, subject to local planning policy.
Last sold in June 2011, so it's been off the market for around 15 years. At 93 m² it's 21.4% smaller than the typical home in the postcode (119 m² median across 12 EPCs). Today's modelled estimate of £518,000 is 41.9% above the 2011 sale price.
What this property has
Inside
- Bedrooms3
Outside
- Private gardenFront and rear
- DrivewayYes
Building
- Extension potentialPossible
Energy performance
23 Thornden's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 01 Feb 2021
EPC Rating
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Planning history
23 Thornden has no planning applications on record.
But the area is active
9 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
£518,000
Modelled from EPC, postcode comparables.
£365,000
Recorded with HM Land Registry.
Sales timeline
21 June 2011Most recent
£365,000
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 years held, 23 Thornden stands well clear of the street.
Price per m²
£3,918
Street avg £5,669
Floor Area
93 m²
Street avg 127 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
6.1 t/year
Street avg 6.5 t/year
Similar properties nearby
1 Barrack Cottages, Brighton Road, Shermanbury
RH13 8HQ
1 Champions Gate Cottages, Cowfold Road, West Grinstead
RH13 8LZ
1 Butchers Row, West Grinstead
RH13 8NF
1 Buckwood Cottages, Worthing Road, West Grinstead
RH13 8GH
1 Alley Groves, Cowfold
RH13 8BN
1 Baileys Cottages, Brooks Green Road, Coolham
RH13 8GR
1 Bowshotts Cottages, Cowfold Road, West Grinstead
RH13 8LY
1 Coach House Mews, Horsham Road, Cowfold
RH13 8BU
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady 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







