51 Downside Avenue, Worthing, BN14 0EX
About 51 Downside Avenue
51 Downside Avenue is a five-bedroom detached house in Worthing (BN14 0EX). It has a recorded floor area of 146 m² (around 1572 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (October 2020) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 82), a 2-band jump.
At 146 m² the property is well over the postcode median (65 m² across 26 EPCs), placing it in the larger end of the local stock. 6 planning records sit against the property, 4 approved, 1 refused. Past consents include an extension, a loft conversion and a conservatory, meaningful when judging how the property has evolved. Across 1999–2021, sale prices on this property compounded at 7.6% per year. On a £-per-square-foot basis, the last sale (£382/sq ft) was about 21.4% above the typical sold price in the postcode. Last sale on file: £601,000 in September 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms5
- Bathrooms2
- Dining roomYes
- Utility roomYes
- CloakroomYes
- EnsuiteYes
Outside
- GarageIntegral
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
A a loft conversion application was refused at 51 Downside Avenue in 2023.
- Sept 2023Loft ConversionFullIn report
Hipped roof loft extension to south side above garage, with gable to rear.
Extension- Documents
- 8 docs on file
- Reference
- AWDM/0067/23
- Feb 2023ExtensionOutlineIn report
Adjoining Authority Consultation - Adur and Worthing Councils (AWDM/0067/23) - Proposed side dormer (south-east elevation)
- Documents
- 2 docs on file
- Reference
- SDNP/23/00459/ADJAUT
What's in 51 Downside Avenue, Worthing, BN14 0EX's planning history?
4 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
Latest sale on 51 Downside Avenue was the highest on Land Registry record across the postcode.
£651,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.6% per year over 22 years.
£601,000
Growth on file: 7.6% per year over 22 years.
Sales timeline
9 September 2021Most recent
£601,000
+220.5%over 20 years29 August 2001
£187,500
+59.0%over 2 years2 June 1999
£117,950
Median price across the last 5 sales in BN14 0EX: £360,000 (2024–2021).
Nearby sales in BN14 0EX
Versus other Downside Avenue homes
Floor Area for 51 Downside Avenue runs comfortably ahead of the street norm.
Price per m²
£4,116
Street avg £4,075
Floor Area
146 m²
Street avg 74 m²
Habitable Rooms
7 rooms
Street avg 4 rooms
CO₂ Emissions
4.5 t/year
Street avg 3.3 t/year
Similar properties nearby
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The neighbourhood at a glance
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
0.2 km
Downside Avenue — bus stop.
Closest school
0.6 km
Vale School, Worthing. 5 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
48.7dB

Night-time· 23:00 – 07:00
39.9dB







