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Get startedThe Old School House is a three-bedroom detached house in Coolham, Horsham, Horsham (RH13 8QN). It has a recorded floor area of 184 m² (around 1981 sq ft), construction records dating it to before 1900 and council tax band F. The latest certificate (November 2022) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in October 2019 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good and window efficiency went from Average to Good. The recommended improvements would push it to C (score 78). Main heating runs on oil. Period features are noted in the property record.
Sale prices here have outpaced Horsham HPI: 4.9% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£358/sq ft) was about 39.4% above the typical sold price in the postcode. It changed hands recently, sold May 2025 for £710,000. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
The Old School House's carbon output runs well above what efficient homes in the postcode produce.
Non Material Amendment to previously approved application DC/20/047 (Conversion and extension of existing garage to provide additional accommodation to existing dwelling). Installation of a 1m x 1m domed rooflight to utility room.
The Old School House valuation sits well clear of the typical sold price in this postcode.
£771,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 14 years.
£710,000
Growth on file: 4.9% per year over 14 years.
The Old School House is notably below the street on years held.
Price per m²
£3,859
Street avg £3,871
Floor Area
184 m²
Street avg 189 m²
Habitable Rooms
6 rooms
Street avg 6 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
Crossroads — bus stop.

Daytime· 07:00 – 23:00
46.1dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Window efficiency improved
Roof insulation improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
Conversion and extension of existing garage to provide additional accommodation to existing dwelling
23 May 2025Most recent
£710,000
+42.0%over 4 years28 May 2020
£500,000
+38.9%over 9 years7 April 2011
£360,000
Median price across the last 5 sales in RH13 8QN: £735,000 (2025–2021).
1 Brockhurst Cottages Billingshurst Road Coolham Horsham
Sold Feb 2025
Chandos Billingshurst Road Coolham Horsham
Sold Dec 2024
Coolham House Billingshurst Road Coolham Horsham
Sold May 2023
Cobwebs Billingshurst Road Coolham Horsham
Sold Jun 2022
Byways Billingshurst Road Coolham Horsham
Sold Dec 2021
CO₂ Emissions
6.3 t/year
Street avg 7.8 t/year
RH13 8NF
Closest school
0.5 km
William Penn School. 2 schools nearby.
Night-time· 23:00 – 07:00
40.1dB
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