12 Balaclava Street, St Thomas, Swansea, SA1 8BS
About 12 Balaclava Street
12 Balaclava Street is a mid-terrace house in St. Thomas, Swansea, Swansea (SA1 8BS). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (September 2015) shows a D (score 55), a step below the typical UK home. When first surveyed in August 2013 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good; while lighting dropped from Very Good to Average. The recommended improvements would lift it to B (score 87), a 2-band jump. The latest certificate is from September 2015, so improvements made since then won't be reflected.
It hasn't traded since October 1997, a hold of 29 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £126,000 sits 472.7% above the 1997 sale of £22,000. On a £-per-square-foot basis, the last sale (£27/sq ft) was about 73.3% below the postcode norm.
Everything you need to know about 12 Balaclava Street
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 Expired
This certificate is over 10 years old and is no longer valid.Expired 15 Sept 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Low energy lighting percentage decreased
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
12 Balaclava Street has no planning applications on record.
But the area is active
53 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Latest sale on 12 Balaclava Street was the lowest on Land Registry record across the postcode.
£126,000
Modelled from EPC, postcode comparables.
£22,000
Recorded with HM Land Registry.
Sales timeline
16 October 1997Most recent
£22,000
Median price across the last 5 sales in SA1 8BS: £115,000 (2024–2021).
Nearby sales in SA1 8BS
2 Balaclava Street, St Thomas, Swansea, SA1 8BS
Sold Oct 2024
£130,00014 Balaclava Street, St Thomas, Swansea, SA1 8BS
Sold Sept 2024
£87,00027a, Balaclava Street, St Thomas, Swansea, SA1 8BS
Sold Apr 2023
£191,0009 Balaclava Street, St Thomas, Swansea, SA1 8BS
Sold Sept 2021
£95,00022 Balaclava Street, St Thomas, Swansea, SA1 8BS
Sold Mar 2021
£82,000
Versus other Balaclava Street homes
Price per m² for 12 Balaclava Street lags the street by a wide margin.
Price per m²
£286
Street avg £1,048
Floor Area
77 m²
Street avg 83 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
4.2 t/year
Street avg 3.8 t/year
Everything you need to know about 12 Balaclava Street
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
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St Thomas Church — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






