9 Rockleigh Avenue, Leigh On Sea, SS9 1LA
About 9 Rockleigh Avenue
9 Rockleigh Avenue is a three-bedroom mid-terrace house in Leigh On Sea (SS9 1LA). It has a recorded floor area of 108 m² (around 1163 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (February 2015) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 84), a 2-band jump. The latest certificate is from February 2015, so improvements made since then won't be reflected.
At 108 m² the property is well over the postcode median (77 m² across 33 EPCs), placing it in the larger end of the local stock. Across 1996–2015, sale prices on this property compounded at 12% per year. Today's modelled estimate of £520,000 sits 57.8% above the 2015 sale of £329,500. On a £-per-square-foot basis, the last sale (£283/sq ft) was about 30.8% above the typical sold price in the postcode. On the market in May 2015 and unlisted since — roughly 11 years. Across the public record there are 4 sales, relatively high churn for a single property. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 9 Rockleigh Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms1
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 17 Feb 2025
EPC Rating
Planning history
9 Rockleigh Avenue has 2 separate extension applications on the council record.
- Feb 2020ExtensionOutlineIn report
Extension: Single storey · Rear of property
Single storey rear extension (Lawful development certificate-proposed)
- Agent
- Walker Hay Architects
- Documents
- 7 docs on file
- Reference
- 19/02264/CLP
- Oct 2019ExtensionIn report
Extension: Single storey · Rear of property
Erect single storey rear extension, projecting 3.75m beyond the existing rear wall of the dwelling, 2.8m high to eaves and with a maximum height of 2.9m
- Agent
- Walker Hay Architects
- Documents
- 5 docs on file
- Reference
- 19/01653/GPDE
We flagged 1 thing worth checking at 9 Rockleigh Avenue
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
30-day money-back guarantee
Sales history & valuation
9 Rockleigh Avenue has more than quadrupled in price since its earliest registered sale in 1996.
£520,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.0% per year over 19 years.
£329,500
Growth on file: 12.0% per year over 19 years.
Sales timeline
14 May 2015Most recent
£329,500
+40.2%over 4 years4 March 2011
£235,000
+162.6%over 12 years27 October 1998
£89,495
+123.7%over 2 years29 September 1996
£40,000
Median price across the last 5 sales in SS9 1LA: £490,000 (2025–2023).
Nearby sales in SS9 1LA
29 Rockleigh Avenue, Leigh On Sea, SS9 1LA
Sold Sept 2025
£325,00029a, Rockleigh Avenue, Leigh On Sea, SS9 1LA
Sold May 2025
£242,0001 Rockleigh Avenue, Leigh On Sea, SS9 1LA
Sold Mar 2025
£600,00027 Rockleigh Avenue, Leigh On Sea, SS9 1LA
Sold Apr 2024
£600,00016 Rockleigh Avenue, Leigh On Sea, SS9 1LA
Sold May 2023
£490,000
Everything we know about 9 Rockleigh Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area

Versus other Rockleigh Avenue homes
EPC Rating for 9 Rockleigh Avenue runs comfortably ahead of the street norm.
Price per m²
£3,051
Street avg £4,017
Floor Area
108 m²
Street avg 123 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
3.8 t/year
Street avg 5.7 t/year
Similar properties nearby
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SS9 1DP
1 Estuary Court, Grand Parade
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1 Cranleigh Drive
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Chalkwell Schools — bus stop.
Closest school
0.1 km
Chalkwell Hall Infant School. 27 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
51.0dB

Night-time· 23:00 – 07:00
40.8dB