21 Idris Terrace, Plasmarl, Swansea, SA6 8LT
About 21 Idris Terrace
21 Idris Terrace is a mid-terrace house in Plasmarl, Swansea, Swansea (SA6 8LT). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (October 2016) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 87), a 3-band jump.
Held since November 2003 — that's 23 years off the open market, well above the local norm. Across the public record there are 4 sales, relatively high churn for a single property. Across 1995–2003, sale prices on this property compounded at 5.5% per year. Today's modelled estimate of £118,000 sits 195% above the 2003 sale of £40,000. On a £-per-square-foot basis, the last sale (£57/sq ft) was about 32.4% below the postcode norm. At 65 m² it's 21.7% smaller than the typical home in the postcode (83 m² median across 26 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 81% of similar EPCs).
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, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
21 Idris Terrace has no planning applications on record.
But the area is active
5 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
21 Idris Terrace's modelled value sits at over four times its earliest registered sale price (1995).
£118,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.5% per year over 9 years.
£40,000
Growth on file: 5.5% per year over 9 years.
Sales timeline
18 November 2003Most recent
£40,000
+48.4%over 4 years27 May 1999
£26,950
+7.8%over 3 years21 September 1995
£25,000
27 January 1995
£25,000
Median price across the last 5 sales in SA6 8LT: £110,000 (2024–2021).
Nearby sales in SA6 8LT
22a, Idris Terrace, Plasmarl, Swansea, SA6 8LT
Sold Jul 2024
£110,00011 Idris Terrace, Plasmarl, Swansea, SA6 8LT
Sold Aug 2023
£128,00023 Idris Terrace, Plasmarl, Swansea, SA6 8LT
Sold Jan 2023
£99,00028 Idris Terrace, Plasmarl, Swansea, SA6 8LT
Sold Aug 2022
£105,0007 Idris Terrace, Plasmarl, Swansea, SA6 8LT
Sold Dec 2021
£124,000
Versus other Idris Terrace homes
21 Idris Terrace is notably below the street on floor area.
Price per m²
£615
Street avg £1,047
Floor Area
65 m²
Street avg 82 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
3.9 t/year
Street avg 3.9 t/year
Similar properties nearby
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1 Ash Street, Morriston
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1 Clos Yr Orsaf, Morriston
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1 Millbrook Street, Plasmarl
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1 Emlyn Terrace, Plasmarl
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1 Idris Terrace, Plasmarl
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Plasmarl — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







