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Get started20 Parham Road is a four-bedroom semi-detached house in Worthing (BN14 0BL). It has a recorded floor area of 121 m² (around 1302 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (September 2025) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since September 2011. Between certificates, lighting went from Average to Very Good; while roof efficiency dropped from Good to Average. The recommended improvements would push it to C (score 78).
Sale prices here have outpaced Worthing HPI: 8.6% per year against 0% for the wider region. Today's modelled estimate of £521,000 is 24% above the 2019 sale price. At 121 m² the property is well over the postcode median (76 m² across 30 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 a loft conversion and an extension, meaningful when judging how the property has evolved. Most recent transfer: December 2019 at £420,000.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Lawful Development Certificate for proposed rooms in roof with side hip to gable roof extension, rear dormer to west elevation and three roof lights to front (east) elevation.
Price for 20 Parham Road has grown more than fourfold since the 2001 starting point.
£521,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.6% per year over 19 years.
£420,000
Growth on file: 8.6% per year over 19 years.
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Detailed AI analysis
Habitable Rooms for 20 Parham Road runs comfortably ahead of the street norm.
Price per m²
£3,471
Street avg £3,784
Floor Area
121 m²
Street avg 83 m²
Habitable Rooms
6 rooms
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Allendale Avenue — bus stop.

Daytime· 07:00 – 23:00
50.5dB

Changes detected from historical EPC data
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.
Extension: Single storey · Rear of property
Rear single storey extension with false pitched roof.
19 December 2019Most recent
£420,000
+52.7%over 4 years23 October 2015
£275,000
+209.0%over 14 years29 January 2001
£89,000
Median price across the last 5 sales in BN14 0BL: £475,000 (2024–2022).
An AI-written breakdown of everything that matters
Detailed EPC data
Full energy ratings, history and recommendations
Related properties
Comparable homes and street-level pricing
Full planning history
Every application and decision on record
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Street avg 4 rooms
CO₂ Emissions
4.0 t/year
Street avg 3.6 t/year
BN14 0SD
Closest school
0.5 km
Vale School, Worthing. 16 schools nearby.
Night-time· 23:00 – 07:00
42.2dB