39a, Balaclava Street, St Thomas, Swansea, SA1 8BR
About 39a
39a is an end-of-terrace house in St. Thomas, Swansea, Swansea (SA1 8BR). It has a recorded floor area of 109 m² (around 1173 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (June 2022) shows an E (score 48), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump.
At 109 m² the property is well over the postcode median (81 m² across 22 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 82% of similar EPCs). A recent sale: £155,000 in February 2025. Across 2023–2025, sale prices on this property compounded at 2.3% per year. Today's modelled estimate of £179,000 is 15.5% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£132/sq ft) was about 80.6% above the typical sold price in the postcode.
Everything you need to know about 39a
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
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
39a 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
39a saw 3 transfers in just over a decade — high turnover for the postcode.
£179,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.3% per year over 2 years.
£155,000
Growth on file: 2.3% per year over 2 years.
Sales timeline
14 February 2025Most recent
£155,000
-3.1%over 1 year20 July 2023
£160,000
+7.5%27 April 2023
£148,800
Median price across the last 5 sales in SA1 8BR: £140,000 (2025–2020).
Nearby sales in SA1 8BR
36 Balaclava Street, St Thomas, Swansea, SA1 8BR
Sold Aug 2025
£165,00048 Balaclava Street, St Thomas, Swansea, SA1 8BR
Sold Jun 2021
£127,00040 Balaclava Street, St Thomas, Swansea, SA1 8BR
Sold Mar 2021
£140,00041 Balaclava Street, St Thomas, Swansea, SA1 8BR
Sold Dec 2020
£125,00042 Balaclava Street, St Thomas, Swansea, SA1 8BR
Sold May 2019
£120,000
Versus other Balaclava Street homes
On epc rating, 39a runs well behind the street norm.
Price per m²
£1,422
Street avg £1,057
Floor Area
109 m²
Street avg 86 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
5.8 t/year
Street avg 3.9 t/year
Everything you need to know about 39a
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.






