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Get startedCoolham House Cottage is a detached house in Coolham, Horsham, Horsham (RH13 8QN). It has a recorded floor area of 305 m² (around 3283 sq ft), construction records dating it to 2025 and council tax band F. The latest certificate (October 2025) returns a B (score 84), comfortably above the UK average. When first surveyed in November 2018 the rating was G, the property has climbed 5 bands since. Between certificates, wall efficiency went from Average to Very Good, roof efficiency went from Very Poor to Very Good and window efficiency went from Very Poor to Good. Main heating runs on electricity: electricity, unspecified tariff.
At 305 m² the property is well over the postcode median (174 m² across 19 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. 11 planning records sit against the property, 9 approved, 0 refused. Past consents include an annexe, new windows and an extension, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£369/sq ft) was about 46% above the typical sold price in the postcode. Most recent transfer: March 2020 at £1,210,000.
Coolham House Cottage ranks among the most efficient homes in the postcode for energy use.
Coolham House Cottage has been through 9 approved planning applications — a well-evolved property.
Removal of condition 4 of previously approved application DC/23/1728 (Variation of condition 3 of previously approved application DC/21/1027 (Demolition of existing dwelling and erection of a replacement four-bed barn style dwelling with ancillary 3-bay cart shed garage) variation sought to allow for consideration of water neutrality requirements) relating to water neutrality.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£1,261,000
Modelled from EPC, postcode comparables.
£1,210,000
Recorded with HM Land Registry.
On epc rating, Coolham House Cottage stands well clear of the street.
Price per m²
£3,967
Street avg £3,864
Floor Area
305 m²
Street avg 182 m²
CO₂ Emissions
0.8 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
0.4 km
Crossroads — bus stop.

Daytime· 07:00 – 23:00
46.1dB

Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water system upgraded
Single glazing replaced with double or better glazing
Wall insulation improved
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Approval of details reserved by conditions 4,5 and 7 to approved application DC/23/1728
9 more applications for this property
Join to see all planning history.
24 March 2020Most recent
£1,210,000
Median price across the last 5 sales in RH13 8QN: £710,000 (2025–2022).
The Old School House Billingshurst Road Coolham Horsham
Sold May 2025
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
Street avg 8.1 t/year
Years Held
6 years
Street avg 10 years
RH13 8JU
Closest school
0.5 km
William Penn School. 2 schools nearby.
Night-time· 23:00 – 07:00
40.1dB
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