1 Castle Terrace, South Road, Aberystwyth, SY23 1JT
About 1 Castle Terrace
1 Castle Terrace is an end-of-terrace house in Aberystwyth (SY23 1JT). It has a recorded floor area of 150 m² (around 1615 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (June 2020) shows an E (score 40), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 84), a 3-band jump.
At 150 m² the property is well over the postcode median (67 m² across 8 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 £260,000 sits 73.3% above the 2020 sale of £150,000. On a £-per-square-foot basis, the last sale (£93/sq ft) was about 58.3% above the typical sold price in the postcode. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension and subdivision, meaningful when judging how the property has evolved. Sold October 2020 for £150,000.
Know exactly what you're buying at 1 Castle Terrace
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
1 Castle Terrace sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- Feb 2023ConditionsIn report
Discharge of condition 5 of planning permission A200906 - acoustic insulation.
- Reference
- A230052
- Feb 2022SubdivisionFullIn report
Conversion, extension and alterations of existing dwelling to provide 4 self contained flats
Extension- Documents
- 17 docs on file
- Reference
- A200906
What's in 1 Castle Terrace, South Road, Aberystwyth, SY23 1JT's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£260,000
Modelled from EPC, postcode comparables.
£150,000
Recorded with HM Land Registry.
Sales timeline
8 October 2020Most recent
£150,000
Median price across the last 4 sales in SY23 1JT: £65,500 (2006–1996).
Everything we know about 1 Castle Terrace, 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?

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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
0.3 km
Mill Street — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.