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Get startedTrelawny House is a four-bedroom semi-detached house in Cowfold, Horsham, Horsham (RH13 8BU). It has a recorded floor area of 175 m² (around 1887 sq ft), construction records dating it to before 1900 and council tax band F. The latest certificate (August 2010) shows an F (score 32), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since June 2009. Between certificates, hot-water efficiency went from Poor to Average. The recommended improvements would push it to E (score 45). The latest certificate is from August 2010, so improvements made since then won't be reflected. Period features are noted in the property record.
It hasn't traded since October 2000, a hold of 26 years that's notably long for the area. Sale prices here have outpaced Horsham HPI: 43.2% per year against 0% for the wider region. Today's modelled estimate of £674,000 sits 114% above the 2000 sale of £315,000. On a £-per-square-foot basis, the last sale (£167/sq ft) was about 46.6% below the postcode norm. At 175 m² the property is well over the postcode median (101 m² across 4 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 18 planning records sit against the property, 11 approved, 7 refused. Past consents include new windows, an extension and a loft conversion, meaningful when judging how the property has evolved. The record references listed-building consent and conservation-area consent, which constrain future alterations.
Trelawny House sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
This certificate is over 10 years old and is no longer valid.Expired 23 Aug 2020
Trelawny House has multiple listed-building consents on file — alterations need formal heritage approval.
Minor alterations to fenestration on rear elevation, to include the repositioning of a door. (Listed Building Consent)
Trelawny House's estimated value is more than triple its earliest registered sale price (1999).
£674,000
Modelled from EPC, postcode comparables and a sale-price growth of 43.2% per year over 1 year.
£315,000
Growth on file: 43.2% per year over 1 year.
Trelawny House is notably below the street on price per m².
Price per m²
£1,797
Street avg £3,832
Floor Area
175 m²
Street avg 92 m²
CO₂ Emissions
16.0 t/year
Street avg 1.4 t/year
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
0.2 km
Village Hall — bus stop.

Daytime· 07:00 – 23:00
49.6dB

Changes detected from historical EPC data
Switched from oil to mains gas, reducing emissions and costs
Hot water system upgraded
Are we missing something? Tell us about home improvements to help adjust your valuation.
Alterations to rear fenestration, reinstatement of back door and installation of window to replace existing back door
16 more applications for this property
Join to see all planning history.
13 October 2000Most recent
£315,000
+43.2%over 10 months15 December 1999
£220,000
Median price across the last 5 sales in RH13 8BU: £300,000 (2025–2019).
Furzefield House Horsham Road Cowfold Horsham
Sold Jun 2025
6 Coach House Mews Horsham Road Cowfold Horsham
Sold Feb 2025
5 Coach House Mews Horsham Road Cowfold Horsham
Sold Oct 2023
4 Coach House Mews Horsham Road Cowfold Horsham
Sold Feb 2019
7 Coach House Mews Horsham Road Cowfold Horsham
Sold Jan 2019
Years Held
26 years
Street avg 5 years
RH13 8HW
Closest school
0.3 km
St Peter's CofE (Aided) Primary School. 1 school nearby.
Night-time· 23:00 – 07:00
43.2dB
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