Chalkwell Bay, Flat 8, Undercliff Gardens, Leigh On Sea, SS9 1EA
About Chalkwell Bay
Chalkwell Bay is a detached house in Leigh On Sea (SS9 1EA). It has a recorded floor area of 75 m² (around 807 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (July 2015) shows a D (score 57), a step below the typical UK home. When first surveyed in November 2008 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 74). The latest certificate is from July 2015, so improvements made since then won't be reflected. At 75 m² this is the 12th smallest of 13 units on EPC record in Chalkwell Bay, where floor areas span 38–91 m². The building's EPC ratings span D to B, with this unit at the bottom.
Last changed hands 11 years ago, in October 2015. At 75 m² it's 15.7% smaller than the typical home in the postcode (89 m² median across 38 EPCs). Across 2007–2015, sale prices on this property compounded at 5.2% per year. Today's modelled estimate of £361,000 is 20.1% above the 2015 sale price.
Know exactly what you're buying at Chalkwell Bay
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
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 02 Jul 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Planning history
Chalkwell Bay has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 1 thing worth checking at Chalkwell Bay
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
Chalkwell Bay saw 3 transfers in just over a decade — high turnover for the postcode.
£361,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.2% per year over 8 years.
£300,500
Growth on file: 5.2% per year over 8 years.
Sales timeline
5 October 2015Most recent
£300,500
+20.2%over 7 years8 April 2008
£250,000
+25.0%over 7 months23 September 2007
£200,000
Median price across the last 5 sales in SS9 1EA: £405,000 (2025–2021).
Nearby sales in SS9 1EA
Seabrink, Flat 10, 46 Undercliff Gardens, Leigh On Sea, SS9 1EA
Sold Jan 2025
£405,000Chalkwell Bay, Flat 9, Undercliff Gardens, Leigh On Sea, SS9 1EA
Sold Aug 2022
£318,000Seabrink, Flat 6, 46 Undercliff Gardens, Leigh On Sea, SS9 1EA
Sold Feb 2022
£607,500Chalkwell Bay, Flat 14, Undercliff Gardens, Leigh On Sea, SS9 1EA
Sold Jul 2021
£295,000Seabrink, Flat 16, 46 Undercliff Gardens, Leigh On Sea, SS9 1EA
Sold Jun 2021
£525,000
Everything we know about Chalkwell Bay, 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 Undercliff Gardens homes
CO₂ Emissions for Chalkwell Bay lags the street by a wide margin.
Price per m²
£4,007
Street avg £4,228
Floor Area
75 m²
Street avg 76 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
4.1 t/year
Street avg 2.6 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
Grand Parade — bus stop.
Closest school
0.8 km
Chalkwell Hall Infant School. 26 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
45.9dB

Night-time· 23:00 – 07:00
36.9dB