17 St James Gardens, Westcliff On Sea, SS0 0BU
About 17 St James Gardens
17 St James Gardens is a detached house in Westcliff On Sea (SS0 0BU). It has a recorded floor area of 90 m² (around 969 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (February 2020) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 85), a 3-band jump.
At 90 m² it sits well below the postcode median (133 m² across 19 EPCs), making it one of the more compact homes locally. 3 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, a loft conversion and a garage conversion, meaningful when judging how the property has evolved. Across 1997–2020, sale prices on this property compounded at 7% per year. Today's modelled estimate of £610,000 is 23.2% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£511/sq ft) was about 67.2% above the typical sold price in the postcode. Last sale on file: £495,000 in August 2020.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
- Nov 2021Loft ConversionFullIn report
Hip to gable roof extension with dormer to rear with juliette balcony to form habitable accommodation in the loftspace and convert existing garage into habitable accommodation, alter elevations (Part-retrospective) (Amended proposal)
RetrospectiveExtensionGarage Conversion- Documents
- 10 docs on file
- Reference
- 21/01958/FULH
- Dec 2020Loft ConversionFullIn report
Hip to gable roof extension with dormer to rear with juliette balcony to form habitable accommodation in the loftspace and convert existing garage into habitable accommodation, alter elevations
Extension- Documents
- 10 docs on file
- Reference
- 20/01679/FULH
We flagged 2 things worth checking at 17 St James Gardens
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
Price for 17 St James Gardens has grown more than fourfold since the 1997 starting point.
£610,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 23 years.
£495,000
Growth on file: 7.0% per year over 23 years.
Sales timeline
6 August 2020Most recent
£495,000
+376.0%over 23 years20 May 1997
£104,000
Median price across the last 5 sales in SS0 0BU: £635,000 (2025–2020).
Nearby sales in SS0 0BU
2 St James Gardens, Westcliff On Sea, SS0 0BU
Sold Jul 2025
£775,00020 St James Gardens, Westcliff On Sea, SS0 0BU
Sold Jun 2023
£625,00024 St James Gardens, Westcliff On Sea, SS0 0BU
Sold Feb 2021
£635,00031 St James Gardens, Westcliff On Sea, SS0 0BU
Sold Feb 2021
£595,00032 St James Gardens, Westcliff On Sea, SS0 0BU
Sold Sept 2020
£735,000
Versus other St James Gardens homes
On floor area, 17 St James Gardens runs well behind the street norm.
Price per m²
£5,500
Street avg £3,888
Floor Area
90 m²
Street avg 132 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
5.0 t/year
Street avg 7.1 t/year
Similar properties nearby
1 Cranfield Close
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1 Hobleythick Lane
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1 Arundel Gardens
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1 Badgers Close
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1 Highfield Way
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Eastwood Boulevard North — bus stop.
Closest school
0.3 km
St Thomas More High School. 28 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
49.7dB

Night-time· 23:00 – 07:00
39.9dB







