1 Glenroy Avenue, St Thomas, Swansea, SA1 8DU
About 1 Glenroy Avenue
1 Glenroy Avenue is a semi-detached house in St. Thomas, Swansea, Swansea (SA1 8DU). It has a recorded floor area of 91 m² (around 980 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (November 2013) shows an E (score 39), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since July 2013. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Poor; while roof efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 79), a 2-band jump. The latest certificate is from November 2013, so improvements made since then won't be reflected.
It hasn't traded since October 1997, a hold of 29 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £184,000 sits 253.8% above the 1997 sale of £52,000. On a £-per-square-foot basis, the last sale (£53/sq ft) was about 57.9% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 78% of similar EPCs).
Everything you need to know about 1 Glenroy Avenue
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
1 Glenroy Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 01 Nov 2023
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Wall insulation improved
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Level 2 HomeBuyer Report
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Planning history
1 Glenroy Avenue 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
1 Glenroy Avenue's estimated value is more than triple its earliest registered sale price (1997).
£184,000
Modelled from EPC, postcode comparables.
£52,000
Recorded with HM Land Registry.
Sales timeline
9 October 1997Most recent
£52,000
Median price across the last 5 sales in SA1 8DU: £122,000 (2025–2018).
Nearby sales in SA1 8DU
18 Glenroy Avenue, St Thomas, Swansea, SA1 8DU
Sold Nov 2025
£142,00015 Glenroy Avenue, St Thomas, Swansea, SA1 8DU
Sold Nov 2024
£190,00040 Glenroy Avenue, St Thomas, Swansea, SA1 8DU
Sold Feb 2021
£110,0002 Glenroy Avenue, St Thomas, Swansea, SA1 8DU
Sold Aug 2018
£91,0007 Glenroy Avenue, St Thomas, Swansea, SA1 8DU
Sold Mar 2018
£122,000
Versus other Glenroy Avenue homes
On floor area, 1 Glenroy Avenue stands well clear of the street.
Price per m²
£571
Street avg £1,397
Floor Area
91 m²
Street avg 80 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
6.8 t/year
Street avg 3.9 t/year
Everything you need to know about 1 Glenroy Avenue
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
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Grenfell Park Post Office — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






