21 Tymawr Street, Port Tennant, Swansea, SA1 8NE
About 21 Tymawr Street
21 Tymawr Street is a mid-terrace house in Port Tennant, Swansea, Swansea (SA1 8NE). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (October 2017) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since December 2009. Between certificates, window efficiency went from Very Poor to Average and lighting went from Poor to Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 86), a 2-band jump.
Untraded for 22 years, with the last transfer in May 2004. Today's modelled estimate of £146,000 sits 62.3% above the 2004 sale of £89,950. On a £-per-square-foot basis, the last sale (£95/sq ft) was about 20.5% above the typical sold price in the postcode.
Everything you need to know about 21 Tymawr 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
Single glazing replaced with double or better glazing
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
21 Tymawr 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
21 Tymawr Street valuation sits well clear of the typical sold price in this postcode.
£146,000
Modelled from EPC, postcode comparables.
£89,950
Recorded with HM Land Registry.
Sales timeline
18 May 2004Most recent
£89,950
Median price across the last 5 sales in SA1 8NE: £124,000 (2025–2020).
Nearby sales in SA1 8NE
43 Tymawr Street, Port Tennant, Swansea, SA1 8NE
Sold Jun 2025
£145,00018 Tymawr Street, Port Tennant, Swansea, SA1 8NE
Sold Jun 2024
£93,00056 Tymawr Street, Port Tennant, Swansea, SA1 8NE
Sold Nov 2022
£153,0003 Tymawr Street, Port Tennant, Swansea, SA1 8NE
Sold Nov 2021
£124,00063 Tymawr Street, Port Tennant, Swansea, SA1 8NE
Sold Mar 2020
£119,000
Versus other Tymawr Street homes
21 Tymawr Street outperforms the street on years held by a wide margin.
Price per m²
£1,022
Street avg £1,003
Floor Area
88 m²
Street avg 98 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.4 t/year
Street avg 4.7 t/year
Everything you need to know about 21 Tymawr 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
The data behind every report
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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 Stephens Church — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.