12 St James Mews, Great Darkgate Street, Aberystwyth, SY23 1DW
About 12 St James Mews
12 St James Mews is an end-of-terrace house in Aberystwyth (SY23 1DW). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1991-1995 and council tax band B. The latest certificate (November 2021) shows a D (score 59), a step below the typical UK home. The rating has held steady at D across 2 certificates since October 2008. Between certificates, hot-water efficiency went from Very Poor to Average and main heating went from Poor to Average. The recommended improvements would lift it to B (score 88), a 2-band jump. Main heating runs on electricity.
Know exactly what you're buying at 12 St James Mews
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Loft insulation installed or upgraded to 250mm+
Planning history
12 St James Mews has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
Sales history & valuation
12 St James Mews has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£133,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in SY23 1DW: £238,000 (2024–2011).
Nearby sales in SY23 1DW
62 Great Darkgate Street, Aberystwyth, SY23 1DW
Sold Dec 2024
£310,00054 Great Darkgate Street, Aberystwyth, SY23 1DW
Sold May 2024
£150,00011 St James Mews, Great Darkgate Street, Aberystwyth, SY23 1DW
Sold Sept 2011
£137,50010 St James Mews, Great Darkgate Street, Aberystwyth, SY23 1DW
Sold Sept 2003
£69,99566 Great Darkgate Street, Aberystwyth, SY23 1DW
Sold Apr 2001
£100,000
Everything we know about 12 St James Mews, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Great Darkgate Street homes
Floor Area for 12 St James Mews lags the street by a wide margin.
EPC Rating
59 (D)
Street avg 55 (E)
Floor Area
41 m²
Street avg 159 m²
CO₂ Emissions
4.1 t/year
Street avg 9.9 t/year
Habitable Rooms
2 rooms
Street avg 9 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Great Darkgate Street Top — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.