18 Bonchurch Avenue, Leigh On Sea, SS9 3AP
About 18 Bonchurch Avenue
18 Bonchurch Avenue is a three-bedroom detached house in Leigh On Sea (SS9 3AP). It has a recorded floor area of 84 m² (around 904 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (January 2025) shows an F (score 38), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 80), a 3-band jump.
A recent sale: £490,000 in March 2025. One planning record on file: an extension approved in 2025. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. At 84 m² it's 23.4% smaller than the typical home in the postcode (110 m² median across 5 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). On a £-per-square-foot basis, the last sale (£542/sq ft) was about 86.7% above the typical sold price in the postcode.
Know exactly what you're buying at 18 Bonchurch Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms1
Outside
- Private gardenSouth-facing
- ParkingOff street
Energy performance
18 Bonchurch Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
- Jul 2025Loft ConversionFullIn report
Extension: Single storey · Rear of property
Raise ridge height with hip to gable roof extension with rooflights to front and dormer to rear to form habitable accommodation in the loftspace and erect single storey rear extension
- Agent
- K S Carpentry
Extension- Reference
- 25/00511/FULH
What's in 18 Bonchurch Avenue, Leigh On Sea, SS9 3AP's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
18 Bonchurch Avenue valuation sits well clear of the typical sold price in this postcode.
£533,000
Modelled from EPC, postcode comparables.
£490,000
Recorded with HM Land Registry.
Sales timeline
28 March 2025Most recent
£490,000
Median price across the last 5 sales in SS9 3AP: £450,000 (2021–2006).
Nearby sales in SS9 3AP
23 Bonchurch Avenue, Leigh On Sea, SS9 3AP
Sold Jan 2021
£552,00020 Bonchurch Avenue, Leigh On Sea, SS9 3AP
Sold Jan 2017
£425,0001 Bonchurch Avenue, Leigh On Sea, SS9 3AP
Sold Dec 2016
£555,00017 Bonchurch Avenue, Leigh On Sea, SS9 3AP
Sold Oct 2006
£325,00019 Bonchurch Avenue, Leigh On Sea, SS9 3AP
Sold Aug 2005
£237,000
Everything we know about 18 Bonchurch Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Bonchurch Avenue homes
18 Bonchurch Avenue outperforms the street on price per m² by a wide margin.
Price per m²
£5,833
Street avg £3,996
Floor Area
84 m²
Street avg 117 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
7.1 t/year
Street avg 7.7 t/year
Similar properties nearby
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
0.4 km
Tankerville Drive — bus stop.
Closest school
0.5 km
West Leigh Infant School. 21 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
48.8dB

Night-time· 23:00 – 07:00
39.7dB