9 Duke Street, Swansea, SA1 4HS
About 9 Duke Street
9 Duke Street is a mid-terrace house in Swansea (SA1 4HS). It has a recorded floor area of 159 m² (around 1711 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (February 2022) shows a G (score 4), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 70), a 4-band jump. Main heating runs on electricity.
At 159 m² the property is well over the postcode median (104 m² across 4 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. Today's modelled estimate of £175,000 sits 91.3% above the 2025 sale of £91,500. On a £-per-square-foot basis, the last sale (£53/sq ft) was about 48.2% below the postcode norm. Most recent transfer was March 2025 at £91,500 — fresh data.
Everything you need to know about 9 Duke Street
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
9 Duke Street sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Certificate validity
Valid until 23 February 2032
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
9 Duke Street has no planning applications on record.
But the area is active
44 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
9 Duke Street valuation sits well clear of the typical sold price in this postcode.
£175,000
Modelled from EPC, postcode comparables.
£91,500
Recorded with HM Land Registry.
Sales timeline
30 March 2025Most recent
£91,500
Median price across the last 5 sales in SA1 4HS: £105,000 (2016–2001).
Versus other Duke Street homes
9 Duke Street is notably below the street on epc rating.
EPC Rating
4 (G)
Street avg 55 (D)
Floor Area
159 m²
Street avg 120 m²
CO₂ Emissions
14.0 t/year
Street avg 5.8 t/year
Habitable Rooms
7 rooms
Street avg 6 rooms
Everything you need to know about 9 Duke Street
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
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Crime
580/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St George Hotel 2 — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.