Seabrink, Flat 1, 46 Undercliff Gardens, Leigh On Sea, SS9 1EA
About Seabrink
Seabrink is a two-bedroom detached house in Leigh On Sea (SS9 1EA). It has a recorded floor area of 94 m² (around 1016 sq ft) and construction records dating it to 1983-1990. At 94 m² this is the 7th smallest of 14 units on EPC record in Seabrink, where floor areas span 82–112 m². The building's EPC ratings span E to C across 14 units on file. Other recorded features include a balcony and notable views. Our model identifies extension potential, subject to local planning policy. The latest certificate (November 2008) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75). The latest certificate is from November 2008, so improvements made since then won't be reflected.
Untraded for 17 years, with the last transfer in August 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £397,000 sits 58.8% above the 2009 sale of £250,000. On a £-per-square-foot basis, the last sale (£246/sq ft) was about 29.1% below the postcode norm. One historical planning record sits against the property in 2018.
Know exactly what you're buying at Seabrink
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
- Bedrooms2
- Dining roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenYes
- GarageYes
- BalconyYes
- Notable viewsYes
Building
- Extension potentialPossible
Energy performance
Seabrink's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 04 Nov 2018
EPC Rating
Planning history
- Oct 2018FullIn report
Install part cladding/part render to South Elevation of East Block
- Documents
- 9 docs on file
- Reference
- 18/01421/FUL
We flagged 1 thing worth checking at Seabrink
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 fell during the post-2008 dip, often a low-water mark in price comparisons.
£397,000
Modelled from EPC, postcode comparables.
£250,000
Recorded with HM Land Registry.
Sales timeline
13 August 2009Most recent
£250,000
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 Seabrink, 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
On co₂ emissions, Seabrink runs well behind the street norm.
Price per m²
£2,649
Street avg £4,285
Floor Area
94 m²
Street avg 76 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
3.9 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