17 Rockleigh Avenue, Leigh On Sea, SS9 1LA
About 17 Rockleigh Avenue
17 Rockleigh Avenue is a one-bedroom mid-terrace house in Leigh On Sea (SS9 1LA). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1930-1949 and council tax band A. At 49 m² this is the 6th smallest of 34 units on EPC record in the building, where floor areas span 42–206 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (July 2020) shows a C (score 70). When first surveyed in January 2009 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Average to Good.
At 49 m² it sits well below the postcode median (91 m² across 33 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 85% of similar EPCs). On a £-per-square-foot basis, the last sale (£436/sq ft) was about 115.4% above the typical sold price in the postcode. Most recent transfer: August 2021 at £230,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 17 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
- Bedrooms1
- Bathrooms1
Outside
- Private gardenWest-facing
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Planning history
17 Rockleigh Avenue has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 1 thing worth checking at 17 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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£241,000
Modelled from EPC, postcode comparables.
£230,000
Recorded with HM Land Registry.
Sales timeline
30 August 2021Most recent
£230,000
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 17 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
CO₂ Emissions for 17 Rockleigh Avenue runs comfortably ahead of the street norm.
Price per m²
£4,694
Street avg £3,567
Floor Area
49 m²
Street avg 53 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.9 t/year
Street avg 2.7 t/year
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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