12 Westbury Street, Swansea, SA1 4JN
About 12 Westbury Street
12 Westbury Street is a six-bedroom mid-terrace house in Swansea (SA1 4JN). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (August 2019) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it C (August 2009); the latest reading is 2 bands lower. Between certificates, roof efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 78), a 2-band jump.
Held since April 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 145 m² it's 18.9% larger than the typical home in the postcode (122 m² median across 38 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs). Today's modelled estimate of £204,000 is 42.7% above the 2007 sale price.
What this property has
Inside
- Bedrooms6
- Bathrooms2
- CloakroomYes
- EnsuiteYes
Outside
- Communal gardenYes
Building
- Heating systemGas
- RefurbishedYes
Energy performance
12 Westbury Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Get a survey for this property
Level 3 Building Survey
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 £885 · Includes VAT
Planning history
12 Westbury 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
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£204,000
Modelled from EPC, postcode comparables.
£143,000
Recorded with HM Land Registry.
Sales timeline
13 April 2007Most recent
£143,000
Median price across the last 5 sales in SA1 4JN: £190,000 (2025–2023).
Nearby sales in SA1 4JN
Versus other Westbury Street homes
Habitable Rooms for 12 Westbury Street runs comfortably ahead of the street norm.
Price per m²
£986
Street avg £1,091
Floor Area
145 m²
Street avg 126 m²
Habitable Rooms
8 rooms
Street avg 6 rooms
CO₂ Emissions
7.0 t/year
Street avg 5.5 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
St James Church — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







