11a, Strand, Swansea, SA1 2AE
About 11a
11a is a semi-detached house in Swansea (SA1 2AE). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 2007-2011 and council tax band A. At 85 m² this is the largest unit on EPC record across the building (45–85 m²). On EPC score it ranks last in the building (75 versus a best of 79). The latest certificate (February 2022) shows a C (score 75), near the top of the C band. When first surveyed in March 2010 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Good to Very Good and lighting went from Good to Very Good.
Across 2022–2024, sale prices on this property compounded at -5.6% per year. Today's modelled estimate of £150,000 is 60.5% below the 2024 sale of £380,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. At 85 m² the property is well over the postcode median (51 m² across 3 EPCs), placing it in the larger end of the local stock. Last sale on file: £380,000 in December 2024.
Energy performance
EPC Rating
Certificate validity
Valid until 7 February 2032
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has solid (non-cavity) walls, 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
5 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
£150,000
Modelled from EPC, postcode comparables and a sale-price growth of -5.6% per year over 3 years.
£380,000
Growth on file: -5.6% per year over 3 years.
Sales timeline
18 December 2024Most recent
£380,000
-13.6%over 2 years26 May 2022
£440,000
Versus other Strand homes
11a is notably below the street on epc rating.
EPC Rating
75 (C)
Street avg 78 (C)
Floor Area
85 m²
Street avg 52 m²
CO₂ Emissions
2.1 t/year
Street avg 1.3 t/year
Habitable Rooms
6 rooms
Street avg 2 rooms
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The neighbourhood at a glance
Crime
580/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Castle Square — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







