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Get started6 Cissbury Avenue is a four-bedroom detached house in Worthing (BN14 0DN). It has a recorded floor area of 98 m² (around 1055 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (October 2017) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 78), a 2-band jump.
Today's modelled estimate of £649,000 sits 71.9% above the 2018 sale of £377,500. On a £-per-square-foot basis, the last sale (£358/sq ft) was about 63.1% above the typical sold price in the postcode. One planning record on file: an extension approved in 2019. Past consents include an extension, meaningful when judging how the property has evolved. At 98 m² it's 19% smaller than the typical home in the postcode (121 m² median across 7 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). On the market in May 2018 and unlisted since — roughly 8 years.
Recommended upgrades on file would lift this property by multiple EPC bands.
Proposed infill extension to west elevation with raised roof, hip to gable roof extension to east, dormer to the north and enlargement of roof over west elevation, dormer to south elevation and roof lights to north elevation.
6 Cissbury Avenue valuation sits well clear of the typical sold price in this postcode.
£649,000
Modelled from EPC, postcode comparables.
£377,500
Recorded with HM Land Registry.
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Detailed AI analysis
6 Cissbury Avenue is notably below the street on habitable rooms.
Price per m²
£3,852
Street avg £3,366
Floor Area
98 m²
Street avg 127 m²
Habitable Rooms
4 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
0.1 km

Daytime· 07:00 – 23:00
49.5dB

22 May 2018Most recent
£377,500
Median price across the last 5 sales in BN14 0DN: £520,000 (2025–2010).
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Detailed EPC data
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Every application and decision on record
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Street avg 6 rooms
CO₂ Emissions
5.4 t/year
Street avg 5.0 t/year
BN14 0UP
Cissbury Avenue — bus stop.
Closest school
0.3 km
Vale School, Worthing. 10 schools nearby.
Night-time· 23:00 – 07:00
40.1dB