11 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR
About 11 St Illtyds Crescent
11 St Illtyds Crescent is an end-of-terrace house in St. Thomas, Swansea, Swansea (SA1 8HR). It has a recorded floor area of 142 m² (around 1525 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (March 2010) shows an F (score 34), near the bottom of the EPC scale. The recommended improvements would push it to E (score 49). The latest certificate is from March 2010, so improvements made since then won't be reflected.
At 142 m² the property is well over the postcode median (86 m² across 12 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2010–2011, sale prices on this property compounded at -8.6% per year. Today's modelled estimate of £199,000 sits 121.1% above the 2011 sale of £90,000. On a £-per-square-foot basis, the last sale (£59/sq ft) was about 45.3% below the postcode norm. Last changed hands 15 years ago, in July 2011.
Everything you need to know about 11 St Illtyds Crescent
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
11 St Illtyds Crescent sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 19 Mar 2020
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
11 St Illtyds Crescent 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
11 St Illtyds Crescent changed hands twice within eighteen months — unusual for the area.
£199,000
Modelled from EPC, postcode comparables and a sale-price growth of -8.6% per year over 1 year.
£90,000
Growth on file: -8.6% per year over 1 year.
Sales timeline
14 July 2011Most recent
£90,000
-8.6%over 9 months7 October 2010
£98,500
Median price across the last 5 sales in SA1 8HR: £175,000 (2025–2021).
Nearby sales in SA1 8HR
6 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR
Sold Sept 2025
£239,00021 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR
Sold Sept 2024
£205,00018 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR
Sold Nov 2021
£175,00010 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR
Sold Sept 2021
£100,00020 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR
Sold Mar 2020
£107,000
Versus other St Illtyds Crescent homes
On epc rating, 11 St Illtyds Crescent runs well behind the street norm.
Price per m²
£635
Street avg £1,460
Floor Area
142 m²
Street avg 89 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
9.6 t/year
Street avg 4.1 t/year
Everything you need to know about 11 St Illtyds Crescent
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 Illtyd's Crescent — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






