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Get startedLong Barn House is a detached house in Cowfold, Horsham, Horsham (RH13 8AZ). It has a recorded floor area of 305 m² (around 3283 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (November 2025) returns a B (score 82), comfortably above the UK average. When first surveyed in June 2011 the rating was D, the property has climbed 2 bands since. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Average to Good and lighting went from Poor to Very Good. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.
At 305 m² the property is well over the postcode median (123 m² across 10 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. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension and solar panel installation, meaningful when judging how the property has evolved.
Long Barn House ranks among the most efficient homes in the postcode for energy use.
Planning records include a solar-panel installation at Long Barn House.
Proposed extension and alterations
Long Barn House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,167,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
On co₂ emissions, Long Barn House stands well clear of the street.
EPC Rating
82 (B)
Street avg 53 (E)
Floor Area
305 m²
Street avg 166 m²
CO₂ Emissions
1.5 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
0.1 km

Daytime· 07:00 – 23:00
49.2dB

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 efficiency decreased
Single glazing replaced with double or better glazing
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
Hot water efficiency improved
Windows upgraded to triple glazing
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Side and rear of property
Proposed single storey rear and side extension, first floor side extension, two storey rear extension, 2m high sound proof fence to front elevation and ground level solar panels at rear of garden
1 more application for this property
Join to see all planning history.
Median price across the last 5 sales in RH13 8AZ: £520,000 (2022–2004).
Street avg 7.9 t/year
Habitable Rooms
9 rooms
Street avg 6 rooms
RH13 8JU
Oakendene Industrial Estate — bus stop.
Closest school
1.4 km
St Peter's CofE (Aided) Primary School. 1 school nearby.
Night-time· 23:00 – 07:00
43.9dB