11 Sebastopol Street, St Thomas, Swansea, SA1 8BN
About 11 Sebastopol Street
11 Sebastopol Street is a two-bedroom mid-terrace house in St. Thomas, Swansea, Swansea (SA1 8BN). It has a recorded floor area of 81 m² (around 872 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (November 2018) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2008. Between certificates, hot-water efficiency went from Average to Good, lighting went from Average to Very Good and main heating went from Average to Good; while roof efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 85), a 2-band jump.
Untraded for 18 years, with the last transfer in August 2008. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £122,000 is 37.9% above the 2008 sale price. On a £-per-square-foot basis, the last sale (£102/sq ft) was about 15.5% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms2
Everything you need to know about 11 Sebastopol 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 Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
11 Sebastopol 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
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£122,000
Modelled from EPC, postcode comparables.
£88,500
Recorded with HM Land Registry.
Sales timeline
10 August 2008Most recent
£88,500
Median price across the last 5 sales in SA1 8BN: £128,000 (2022–2018).
Nearby sales in SA1 8BN
12 Sebastopol Street, St Thomas, Swansea, SA1 8BN
Sold Sept 2022
£130,00027 Sebastopol Street, St Thomas, Swansea, SA1 8BN
Sold Jun 2022
£150,00031 Sebastopol Street, St Thomas, Swansea, SA1 8BN
Sold Jul 2021
£122,00021 Sebastopol Street, St Thomas, Swansea, SA1 8BN
Sold Nov 2020
£125,00036 Sebastopol Street, St Thomas, Swansea, SA1 8BN
Sold Dec 2018
£128,000
Versus other Sebastopol Street homes
Price per m²
£1,093
Street avg £1,143
Floor Area
81 m²
Street avg 89 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
3.5 t/year
Street avg 4.3 t/year
Everything you need to know about 11 Sebastopol 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.






