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Get started9 Alley Groves is a three-bedroom detached house in Cowfold, Horsham, Horsham (RH13 8BN). It has a recorded floor area of 87 m² (around 936 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (June 2018) shows a D (score 56), a step below the typical UK home. When first surveyed in December 2008 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Average to Good and lighting went from Very Poor to Poor; while hot-water efficiency dropped from Average to Poor and main heating dropped from Average to Poor. The recommended improvements would lift it to B (score 83), a 2-band jump. Main heating runs on oil. Other recorded features include a conservatory. The home occupies a cul-de-sac position.
Held since October 2005 — that's 21 years off the open market, well above the local norm. Sale prices here have outpaced Horsham HPI: 9.8% per year against 0% for the wider region. Today's modelled estimate of £435,000 sits 74% above the 2005 sale of £249,950. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs).
Recommended upgrades on file would lift this property by multiple EPC bands.
A a single-storey rear extension application was refused at 9 Alley Groves in 2024.
Extension: Single storey · Rear of property
Erection of a single storey rear extension
9 Alley Groves has more than doubled in price since the earliest registered sale in 1997.
£435,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.8% per year over 8 years.
£249,950
Growth on file: 9.8% per year over 8 years.
9 Alley Groves is notably below the street on co₂ emissions.
Price per m²
£2,873
Street avg £4,435
Floor Area
87 m²
Street avg 83 m²
Habitable Rooms
5 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

Daytime· 07:00 – 23:00
49.6dB

Changes detected from historical EPC data
Hot water efficiency decreased
Window efficiency improved
Roof insulation improved
Floor insulation added or improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Single storey · Rear of property
Prior Approval for the erection of a single-storey rear larger home extension, which would project 5.00m from the rear elevation, comprising a maximum height of 3.00m and an eaves height of 3.00m
14 October 2005Most recent
£249,950
+117.4%over 8 years10 June 1997
£114,950
Median price across the last 5 sales in RH13 8BN: £445,800 (2025–2022).
Street avg 5 rooms
CO₂ Emissions
5.0 t/year
Street avg 2.3 t/year
RH13 8BN
Village Hall — bus stop.
Closest school
0.5 km
St Peter's CofE (Aided) Primary School. 1 school nearby.
Night-time· 23:00 – 07:00
43.3dB
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