27a, Cliffsea Grove, Leigh On Sea, SS9 1NG
About 27a
27a is a one-bedroom semi-detached house in Leigh On Sea (SS9 1NG). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to 1930-1949 and council tax band A. At 35 m² this is the 2nd smallest of 26 units on EPC record in the building, where floor areas span 33–224 m². The building's EPC ratings span F to C across 26 units on file. Our model identifies extension potential, subject to local planning policy. The latest certificate (July 2025) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 72).
Held since February 2007 — that's 19 years off the open market, well above the local norm. Across the public record there are 5 sales, relatively high churn for a single property. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 1995–2007, sale prices on this property compounded at 15.6% per year. Today's modelled estimate of £174,000 sits 56.8% above the 2007 sale of £111,000. At 35 m² it sits well below the postcode median (90 m² across 25 EPCs), making it one of the more compact homes locally.
Know exactly what you're buying at 27a
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
- Dining roomYes
Outside
- GarageYes
Building
- Extension potentialPossible
Energy performance
EPC Rating
Planning history
27a has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 1 thing worth checking at 27a
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
Price for 27a has grown more than fourfold since the 1995 starting point.
£174,000
Modelled from EPC, postcode comparables and a sale-price growth of 15.6% per year over 11 years.
£111,000
Growth on file: 15.6% per year over 11 years.
Sales timeline
5 February 2007Most recent
£111,000
+20.7%over 3 years30 September 2003
£92,000
+61.4%over 2 years9 August 2001
£56,995
+42.7%over 3 years18 September 1997
£39,950
+85.8%over 1 year17 October 1995
£21,500
Median price across the last 5 sales in SS9 1NG: £465,000 (2025–2024).
Nearby sales in SS9 1NG
19 Cliffsea Grove, Leigh On Sea, SS9 1NG
Sold Sept 2025
£465,00027b, Cliffsea Grove, Leigh On Sea, SS9 1NG
Sold Dec 2024
£170,00067 Cliffsea Grove, Leigh On Sea, SS9 1NG
Sold Sept 2024
£590,00059 Cliffsea Grove, Leigh On Sea, SS9 1NG
Sold Sept 2024
£377,50061 Cliffsea Grove, Leigh On Sea, SS9 1NG
Sold Sept 2024
£586,250
Everything we know about 27a, 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 Cliffsea Grove homes
27a outperforms the street on co₂ emissions by a wide margin.
Price per m²
£3,171
Street avg £3,357
Floor Area
35 m²
Street avg 50 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
2.2 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
Leigh Cliff Road — bus stop.
Closest school
0.6 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
50.6dB

Night-time· 23:00 – 07:00
39.9dB