Castle Buildings, Apartment 108, 32 Castle Street, Swansea, SA1 1JG
About Castle Buildings
Castle Buildings is a mid-terrace house in Swansea (SA1 1JG). It has a recorded floor area of 52 m² (around 560 sq ft), construction records dating it to 2003-2006 and council tax band C. At 52 m² this is the 55th 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, with this unit at the bottom. The latest certificate (September 2022) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (August 2012); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good; while wall efficiency dropped from Very Good to Good and hot-water efficiency dropped from Average to Very Poor. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity.
Across 2006–2013, sale prices on this property compounded at -4.9% per year. Today's modelled estimate of £121,000 sits 55.1% above the 2013 sale of £78,000. On a £-per-square-foot basis, the last sale (£139/sq ft) was about 25% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 81% of similar EPCs). On the market in September 2013 and unlisted since — roughly 13 years.
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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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 controls changed
Hot water system changed
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property 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 valuation sits well clear of the typical sold price in this postcode.
£121,000
Modelled from EPC, postcode comparables and a sale-price growth of -4.9% per year over 8 years.
£78,000
Growth on file: -4.9% per year over 8 years.
Sales timeline
26 September 2013Most recent
£78,000
-32.2%over 7 years6 January 2006
£115,000
Median price across the last 5 sales in SA1 1JG: £84,500 (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 204, 32 Castle Street, Swansea, SA1 1JG
Sold Dec 2022
£84,500Castle 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
£70,000
Versus other Castle Street homes
CO₂ Emissions for Castle Buildings lags the street by a wide margin.
Price per m²
£1,500
Street avg £1,907
Floor Area
52 m²
Street avg 48 m²
Habitable Rooms
1 rooms
Street avg 1 rooms
CO₂ Emissions
2.7 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.
Pick your report · every report is £14.99
One time fee only - money back guarantee

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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.






