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Get startedBlackbush House is a four-bedroom detached house in South Mundham, Chichester, Chichester (PO20 1NB). It has a recorded floor area of 246 m² (around 2648 sq ft), construction records dating it to 1976-1982 and council tax band F. The latest certificate (September 2015) shows an E (score 46), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since April 2010. Between certificates, roof efficiency went from Average to Very Good and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Poor to Very Poor and main heating dropped from Average to Poor. The recommended improvements would lift it to C (score 75), a 2-band jump. Main heating runs on oil. The latest certificate is from September 2015, so improvements made since then won't be reflected.
It hasn't traded since October 2010, a hold of 16 years that's notably long for the area. Sale prices here have outpaced Chichester HPI: 7.2% per year against 0% for the wider region. Today's modelled estimate of £974,000 is 21.8% above the 2010 sale price. At 246 m² the property is well over the postcode median (144 m² across 6 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Blackbush House's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 18 Sept 2025
Blackbush House has an approved single-storey rear extension on the planning record.
Extension: Single storey · Rear of property
Demolition of existing store, study and utility room to existing dwelling and subsequent construction of new single storey extension with accommodation comprising an extended kitchen, store and utility room.
Blackbush House has more than doubled in price since the earliest registered sale in 1998.
£974,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.2% per year over 13 years.
£800,000
Growth on file: 7.2% per year over 13 years.
Years Held for Blackbush House runs comfortably ahead of the street norm.
Price per m²
£3,252
Street avg £5,573
Floor Area
246 m²
Street avg 171 m²
Habitable Rooms
8 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.8 km

Daytime· 07:00 – 23:00
41.1dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Loft insulation upgraded to recommended levels
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Separate residential use of Blackbush chalet.
12 October 2010Most recent
£800,000
+140.6%over 12 years25 March 1998
£332,500
Median price across the last 5 sales in PO20 1NB: £666,666 (2022–2014).
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Street avg 7 rooms
CO₂ Emissions
12.0 t/year
Street avg 7.9 t/year
PO20 1ED
Barfoots of Botley — bus stop.
Closest school
1.8 km
Rose Green Junior School. 3 schools nearby.
Night-time· 23:00 – 07:00
35.2dB
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