10a, Caswell Street, Swansea, SA1 4HT
About 10a
10a is a semi-detached house in Swansea (SA1 4HT). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (November 2023) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 86), a 2-band jump.
It hasn't traded since December 2001, a hold of 24 years that's notably long for the area. Across 1997–2001, sale prices on this property compounded at 3.1% per year. Today's modelled estimate of £127,000 sits 257.7% above the 2001 sale of £35,500. On a £-per-square-foot basis, the last sale (£70/sq ft) was about 28.5% below the postcode norm. At 47 m² it sits well below the postcode median (73 m² across 13 EPCs), making it one of the more compact homes locally.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has been extended more than once, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
10a has no planning applications on record.
But the area is active
44 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
10a's modelled value sits at over four times its earliest registered sale price (1997).
£127,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.1% per year over 4 years.
£35,500
Growth on file: 3.1% per year over 4 years.
Sales timeline
14 December 2001Most recent
£35,500
+14.5%over 4 years31 July 1997
£31,000
Median price across the last 5 sales in SA1 4HT: £122,500 (2022–2014).
Nearby sales in SA1 4HT
Versus other Caswell Street homes
10a is notably below the street on floor area.
Price per m²
£755
Street avg £1,388
Floor Area
47 m²
Street avg 76 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.4 t/year
Street avg 3.1 t/year
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St George Hotel 2 — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







