11a, Seaview Road, Leigh On Sea, SS9 1AT
About 11a
11a is a two-bedroom semi-detached house in Leigh On Sea (SS9 1AT). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1900-1929 and council tax band C. At 49 m² this is the 2nd smallest of 28 units on EPC record in the building, where floor areas span 48–230 m². The building's EPC ratings span G to C across 28 units on file. The latest certificate (April 2017) shows a D (score 59), a step below the typical UK home. The recommended improvements would push it to C (score 76).
At 49 m² it sits well below the postcode median (103 m² across 27 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £289,000 is 13.8% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£482/sq ft) was about 84.7% above the typical sold price in the postcode. Sold June 2021 for £254,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 11a
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
- Bathrooms1
Outside
- Private gardenYes
- ParkingAllocated
Building
- RefurbishedYes
Energy performance
EPC Rating
Planning history
11a has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 1 thing worth checking at 11a
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.
£289,000
Modelled from EPC, postcode comparables.
£254,000
Recorded with HM Land Registry.
Sales timeline
17 June 2021Most recent
£254,000
Median price across the last 5 sales in SS9 1AT: £695,000 (2025–2023).
Nearby sales in SS9 1AT
Everything we know about 11a, 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 Seaview Road homes
11a is notably below the street on floor area.
Price per m²
£5,184
Street avg £3,400
Floor Area
49 m²
Street avg 55 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.9 t/year
Street avg 3.6 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Broadway — bus stop.
Closest school
0.2 km
Leigh North Street Primary School. 19 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
46.3dB

Night-time· 23:00 – 07:00
37.1dB