Model valuation£417,0008 Busby Close
Local market context
20 Margaret Street is a two-bedroom mid-terrace house in St. Thomas, Swansea, Swansea (SA1 8HT). It has a recorded floor area of 83 m² (around 893 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (July 2025) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in March 2013 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Good to Very Good and lighting went from Good to Very Good; while window efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 84), a 2-band jump.
It hasn't traded since October 2005, a hold of 21 years that's notably long for the area. At 83 m² it's 16.2% smaller than the typical home in the postcode (99 m² median across 20 EPCs). Across 2000–2005, sale prices on this property compounded at 24.4% per year. Today's modelled estimate of £128,000 is 43.1% above the 2005 sale price.
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee

Recommended upgrades on file would lift this property by multiple EPC bands.
Certificate validity
Valid until 22 July 2035
Changes detected from historical EPC data
Roof insulation improved
Windows upgraded, improving insulation
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Because the property was built before 1919 and has been extended more than once, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
20 Margaret Street has no planning applications on record.
But the area is active
47 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sale price has at least doubled since 2000.
£128,000
Modelled from EPC, postcode comparables and a sale-price growth of 24.4% per year over 5 years.
£89,474
Growth on file: 24.4% per year over 5 years.
3 October 2005Most recent
£89,474
+198.2%over 5 years28 September 2000
£30,000
Median price across the last 5 sales in SA1 8HT: £148,000 (2025–2019).
3 Margaret Street, St Thomas, Swansea, SA1 8HT
Sold Sept 2025
14 Margaret Street, St Thomas, Swansea, SA1 8HT
Sold Jul 2022
29 Margaret Street, St Thomas, Swansea, SA1 8HT
Sold Oct 2020
6 Margaret Street, St Thomas, Swansea, SA1 8HT
Sold Nov 2019
31 Margaret Street, St Thomas, Swansea, SA1 8HT
Sold Jun 2018
On co₂ emissions, 20 Margaret Street stands well clear of the street.
Price per m²
£1,078
Street avg £1,065
Floor Area
83 m²
Street avg 100 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
2.9 t/year
Street avg 4.6 t/year
Property research, connected
Explore sale histories, valuations, energy ratings and local areas. Ask the assistant to connect the details and take your research further.
Start your researchSA1 8BA
SA1 8LY
SA1 8HE
SA1 8EA
SA1 8BS
SA1 8EQ
SA1 8DQ
SA1 8BR
Crime
580/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Jersey Park — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.