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Get startedBoyne House is a five-bedroom detached house in Slinfold, Horsham, Horsham (RH13 0SQ). It has a recorded floor area of 207 m² (around 2228 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (July 2021) shows an E (score 46), well below the UK norm with real room to improve. When first surveyed in February 2011 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Average, roof efficiency went from Poor to Good and window efficiency went from Poor to Average; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Average to Poor. The recommended improvements would lift it to C (score 70), a 2-band jump. Main heating runs on oil.
Sale prices here have outpaced Horsham HPI: 6.1% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£442/sq ft) was about 55% above the typical sold price in the postcode. At 207 m² the property is well over the postcode median (118 m² across 28 EPCs), placing it in the larger end of the local stock. 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last sale on file: £985,000 in November 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Boyne House's carbon output runs well above what efficient homes in the postcode produce.
Extension: Part single, part two storey · Side and rear of property
Removal of existing detached garage and shed and erection of a part two-storey, part single storey rear extension and erection of a single storey side and rear extension.
Latest sale on Boyne House was the highest on Land Registry record across the postcode.
£1,076,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.1% per year over 23 years.
£985,000
Growth on file: 6.1% per year over 23 years.
Habitable Rooms for Boyne House runs comfortably ahead of the street norm.
Price per m²
£4,758
Street avg £3,704
Floor Area
207 m²
Street avg 130 m²
Habitable Rooms
9 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
0.6 km
Lyons Close — bus stop.

Daytime· 07:00 – 23:00
43.0dB

Changes detected from historical EPC data
Hot water efficiency decreased
Windows upgraded, improving insulation
Wall insulation improved
Roof insulation improved
More low energy lighting installed
Heating controls upgraded for better temperature management
Hot water system changed
Windows upgraded, improving insulation
Cavity wall insulation installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
New front gates with changes to entrance
9 November 2021Most recent
£985,000
+17.3%over 2 years31 October 2019
£840,000
+240.1%over 21 years29 July 1998
£247,000
Median price across the last 5 sales in RH13 0SQ: £390,000 (2024–2021).
Street avg 6 rooms
CO₂ Emissions
11.0 t/year
Street avg 6.4 t/year
RH13 0SQ
Closest school
0.8 km
Slinfold CofE Primary School and Pre School. 1 school nearby.
Night-time· 23:00 – 07:00
36.4dB
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