Chalkwell Bay, Flat 12, Undercliff Gardens, Leigh On Sea, SS9 1EA
About Chalkwell Bay
Chalkwell Bay is a mid-terrace house in Leigh On Sea (SS9 1EA). It has a recorded floor area of 38 m² (around 409 sq ft), construction records dating it to 1967-1975 and council tax band B. At 38 m² this is the smallest unit on EPC record across Chalkwell Bay (38–91 m²). The building's EPC ratings span D to B across 13 units on file. The latest certificate (May 2021) shows a C (score 74). The rating has held steady at C across 2 certificates since May 2011. Between certificates, wall efficiency dropped from Good to Average and roof efficiency dropped from Good to Average.
At 38 m² it sits well below the postcode median (89 m² across 38 EPCs), making it one of the more compact homes locally.
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
Chalkwell Bay's carbon output is low for the local stock.
EPC Rating
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 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£200,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
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 runs comfortably ahead of the street norm.
EPC Rating
74 (C)
Street avg 70 (C)
Floor Area
38 m²
Street avg 77 m²
CO₂ Emissions
1.3 t/year
Street avg 2.7 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
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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