11a, Castle Walk, Southport, PR8 2AR
About 11a
11a is a semi-detached house in Southport (PR8 2AR). It has a recorded floor area of 31 m² (around 334 sq ft) and construction records dating it to 1900-1929. The latest certificate (April 2018) shows an E (score 39), well below the UK norm with real room to improve. When first surveyed in October 2009 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average and lighting went from Very Poor to Very Good. The recommended improvements would lift it to C (score 70), a 2-band jump. Main heating runs on electricity. At 31 m² this is the 3rd smallest of 6 units on EPC record in 11a, where floor areas span 27–40 m². The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (39 versus a best of 65).
Across 2014–2023, sale prices on this property compounded at 10.6% per year. Today's modelled estimate of £146,000 is 43.8% below the 2023 sale of £260,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£779/sq ft) was about 373.1% above the typical sold price in the postcode. Sold August 2023 for £260,000.
Everything you need to know about 11a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Upgraded to gas central heating
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
Windows upgraded, improving insulation
Low energy lighting percentage decreased
Heating system changed
Changed to a more efficient fuel source
Hot water system changed
Window efficiency improved
Cavity wall insulation installed
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
11a has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
11a has more than doubled in price since the earliest registered sale in 2014.
£146,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.6% per year over 10 years.
£260,000
Growth on file: 10.6% per year over 10 years.
Sales timeline
3 August 2023Most recent
£260,000
+44.4%over 6 years3 July 2017
£180,000
+81.8%over 3 years13 January 2014
£99,000
Median price across the last 5 sales in PR8 2AR: £210,000 (2025–2020).
Versus other Castle Walk homes
On epc rating, 11a runs well behind the street norm.
EPC Rating
39 (E)
Street avg 63 (D)
Floor Area
31 m²
Street avg 34 m²
CO₂ Emissions
3.0 t/year
Street avg 1.8 t/year
Habitable Rooms
1 rooms
Street avg 2 rooms
Everything you need to know about 11a
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
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Westcliffe Road — bus stop.
Closest school
0.9 km
Linaker Primary School. 14 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
52.4dB
Night-time· 23:00 – 07:00
41.8dB