Castle Buildings, Apartment 204, 32 Castle Street, Swansea, SA1 1JG
About Castle Buildings
Castle Buildings is a one-bedroom mid-terrace house in Swansea (SA1 1JG). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (December 2023) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it B (August 2013); the latest reading is 2 bands lower. Between certificates, wall efficiency went from Very Poor to Poor; while hot-water efficiency dropped from Average to Poor and main heating dropped from Average to Very Poor. The recommended improvements would lift it to B (score 82), a 2-band jump. Main heating runs on electricity. At 43 m² this is the 21st smallest of 73 units on EPC record in Castle Buildings, where floor areas span 32–96 m². The building's EPC ratings span E to B across 73 units on file.
Across 2006–2022, sale prices on this property compounded at -0.7% per year. Today's modelled estimate of £113,000 is 33.7% above the 2022 sale price. Last sale on file: £84,500 in December 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms1
- Bathrooms1
Outside
- Private gardenYes
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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
Heating system changed
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Wall insulation improved
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
Castle Buildings has no planning applications on record.
But the area is active
7 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Castle Buildings's sale-price growth has lagged the wider UK trajectory across its history on file.
£113,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.7% per year over 17 years.
£84,500
Growth on file: -0.7% per year over 17 years.
Sales timeline
16 December 2022Most recent
£84,500
-11.1%over 16 years24 April 2006
£95,000
Median price across the last 5 sales in SA1 1JG: £70,000 (2025–2022).
Nearby sales in SA1 1JG
Castle Buildings, Apartment 322, 32 Castle Street, Swansea, SA1 1JG
Sold Aug 2025
£85,000Castle Buildings, Apartment 303, 32 Castle Street, Swansea, SA1 1JG
Sold May 2023
£43,000Castle Buildings, Apartment 323, 32 Castle Street, Swansea, SA1 1JG
Sold Jul 2022
£52,000Castle Buildings, Apartment 112, 32 Castle Street, Swansea, SA1 1JG
Sold Jun 2022
£70,000Castle Buildings, Apartment 308, 32 Castle Street, Swansea, SA1 1JG
Sold Jun 2021
£61,000
Versus other Castle Street homes
Castle Buildings is notably below the street on years held.
Price per m²
£1,965
Street avg £1,896
Floor Area
43 m²
Street avg 48 m²
Habitable Rooms
1 rooms
Street avg 1 rooms
CO₂ Emissions
2.1 t/year
Street avg 1.8 t/year
Everything you need to know about Castle Buildings
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
High Street 1 — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






