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Get started23 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.
23 Thornden's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 01 Feb 2021
£518,000
Modelled from EPC, postcode comparables.
£365,000
Recorded with HM Land Registry.
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
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

Daytime· 07:00 – 23:00
49.6dB

22 June 2011Most recent
£365,000
Median price across the last 5 sales in RH13 8AG: £560,000 (2025–2021).
CO₂ Emissions
6.1 t/year
Street avg 6.5 t/year
RH13 8LZ
Brook Farm — bus stop.
Closest school
0.3 km
St Peter's CofE (Aided) Primary School. 1 school nearby.
Night-time· 23:00 – 07:00
43.4dB
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