18 Catherine Street, Swansea, SA1 4JT
About 18 Catherine Street
18 Catherine Street is a mid-terrace house in Swansea (SA1 4JT). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (March 2025) shows a C (score 70). The recommended improvements would push it to B (score 88).
Held since November 2002 — that's 24 years off the open market, well above the local norm. Today's modelled estimate of £171,000 sits 142.6% above the 2002 sale of £70,500. At 72 m² it's 16.3% smaller than the typical home in the postcode (86 m² median across 19 EPCs). Its energy rating outperforms most of the postcode (better than 74% of similar EPCs).
Energy performance
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
18 Catherine Street 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
18 Catherine Street valuation sits well clear of the typical sold price in this postcode.
£171,000
Modelled from EPC, postcode comparables.
£70,500
Recorded with HM Land Registry.
Sales timeline
8 November 2002Most recent
£70,500
Median price across the last 5 sales in SA1 4JT: £155,000 (2025–2022).
Nearby sales in SA1 4JT
Versus other Catherine Street homes
On years held, 18 Catherine Street stands well clear of the street.
Price per m²
£979
Street avg £1,499
Floor Area
72 m²
Street avg 85 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
2.4 t/year
Street avg 3.6 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St Helens Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







