18a Marine Gate Mansions, Promenade, Southport, PR9 0AU
About 18a Marine Gate Mansions
18a Marine Gate Mansions is a mid-terrace house in Southport (PR9 0AU). It has a recorded floor area of 81 m² (around 872 sq ft), construction records dating it to 1996-2002 and council tax band E. At 81 m² this is the smallest unit on EPC record across the building (81–297 m²). The building's EPC ratings span D to B across 31 units on file. The latest certificate (July 2023) shows a C (score 77), near the top of the C band. Earlier certificates rated it B (July 2011); the latest reading is one band lower. Between certificates, window efficiency dropped from Good to Average and lighting dropped from Very Good to Very Poor. The recommended improvements would push it to B (score 81).
It hasn't traded since October 2004, a hold of 22 years that's notably long for the area. At 81 m² it sits well below the postcode median (159 m² across 30 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £191,000 is 26.9% above the 2004 sale price.
Everything you need to know about 18a Marine Gate Mansions
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Low energy lighting percentage decreased
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Planning history
18a Marine Gate Mansions has no planning applications on record.
But the area is active
15 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
18a Marine Gate Mansions valuation runs notably under the typical sold price in this postcode.
£191,000
Modelled from EPC, postcode comparables.
£150,500
Recorded with HM Land Registry.
Sales timeline
27 October 2004Most recent
£150,500
Median price across the last 5 sales in PR9 0AU: £385,000 (2025–2022).
Nearby sales in PR9 0AU
34 Marine Gate Mansions, Promenade, Southport, PR9 0AU
Sold Aug 2025
£430,00031 Marine Gate Mansions, Promenade, Southport, PR9 0AU
Sold Apr 2023
£445,00027a Marine Gate Mansions, Promenade, Southport, PR9 0AU
Sold Nov 2022
£269,00012 Marine Gate Mansions, Promenade, Southport, PR9 0AU
Sold Apr 2022
£385,00019 Marine Gate Mansions, Promenade, Southport, PR9 0AU
Sold Mar 2022
£316,600
Versus other Promenade homes
18a Marine Gate Mansions is notably below the street on floor area.
Price per m²
£1,858
Street avg £2,067
Floor Area
81 m²
Street avg 167 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
2.0 t/year
Street avg 3.7 t/year
Everything you need to know about 18a Marine Gate Mansions
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Avondale Road — bus stop.
Closest school
0.6 km
Holy Trinity Church of England Primary School, Southport. 13 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
53.2dB
Night-time· 23:00 – 07:00
42.3dB