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21a Marine Gate Mansions, Promenade, Southport, PR9 0AU

EPC B
Property type
Mid terrace
Floor 2nd
Habitable rooms
7
From EPC
Floor area
173 m²
1862 sq ft
Energy rating
B
Score 83
Council tax
Band F
Tenure
Owner Occupied
Overview

About 21a Marine Gate Mansions

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

21a Marine Gate Mansions is a mid-terrace house in Southport (PR9 0AU). It has a recorded floor area of 173 m² (around 1862 sq ft), construction records dating it to 2003-2006 and council tax band F. The latest certificate (February 2018) returns a B (score 83), comfortably above the UK average. At 173 m² this is the 19th smallest of 31 units on EPC record in the building, where floor areas span 81–297 m². The building's EPC ratings span D to B, with this unit at the top.

Today's modelled estimate of £371,000 is 23.7% above the 2021 sale price. Most recent transfer: March 2021 at £300,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you decide

Everything you need to know about 21a Marine Gate Mansions

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

EPC Rating

A
B
B83
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
2.7 t/year
Occupancy
Owner Occupied
SDL Surveying

Get a survey for this property

Level 3 Building Survey

21st century2nd Floor FlatEPC BSolid (non-cavity) walls

Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £955 · Includes VAT

Planning

Planning history

Applications and permits filed against 21a Marine Gate Mansions, Promenade, Southport, PR9 0AU, sourced from the PlanIt planning register.

21a Marine Gate Mansions has no planning applications on record.

15

But the area is active

15 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

21a Marine Gate Mansions's sale-price growth has lagged the wider UK trajectory across its history on file.

Current estimate

£371,000

Modelled from EPC, postcode comparables and a sale-price growth of -0.3% per year over 17 years.

See how we calculated this
Last sold (2021)

£300,000

Growth on file: -0.3% per year over 17 years.

Sales timeline

  1. 25 March 2021Most recent

    £300,000

    -4.5%over 16 years

  2. 3 May 2004

    £314,000

Median price across the last 5 sales in PR9 0AU: £385,000 (2025–2022).

On the street

Versus other Promenade homes

Four headline reads against 30 similar flats on this street, drawn from the latest EPC and Land Registry data.

Habitable Rooms for 21a Marine Gate Mansions runs comfortably ahead of the street norm.

Price per m²

£1,734

Street avg £2,071

Strongly below

Floor Area

173 m²

Street avg 164 m²

Above

Habitable Rooms

7 rooms

Street avg 4 rooms

Strongly above

CO₂ Emissions

2.7 t/year

Street avg 3.7 t/year

Above
Before you decide

Everything you need to know about 21a Marine Gate Mansions

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£330k

1 Marine Gate Mansions, Promenade

PR9 0AU

3 bed2 bath
£263k

1 Bank Square

PR9 0DG

£248k

1 3, Avondale Road

PR9 0EP

4 bed2 bath
£232k

1 Gordon Mews, Gordon Street

PR9 0NA

£183k

1 Gordon Avenue

PR9 0LX

£172k

1 Lathom Road

PR9 0JA

£164k

1 Alexandra Road

PR9 0NB

£157k

1 Simpson Mansions, Seabank Road

PR9 0EN

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Southport district page.
Full Southport report

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.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around PR9 0AU from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for PR9 0AU

Daytime· 07:00 – 23:00

53.2dB

Low
Night-time road noise heatmap for PR9 0AU

Night-time· 23:00 – 07:00

42.3dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21a Marine Gate Mansions, Promenade, Southport, PR9 0AU. Each answer is also embedded as structured data for search engines.