Tan Y Castell, Flat 1, 50 Great Darkgate Street, Aberystwyth, SY23 1DW
About Tan Y Castell
Tan Y Castell is a property in Aberystwyth (SY23 1DW). It has a recorded floor area of 33 m² (around 355 sq ft) and construction records dating it to 1900-1929. At 33 m² this is the smallest unit on EPC record across Tan Y Castell (33–45 m²). The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (July 2025) shows a C (score 75), near the top of the C band. The recommended improvements would push it to B (score 81). Main heating runs on electricity.
At 33 m² it's 20.5% smaller than the typical home in the postcode (42 m² median across 32 EPCs).
Know exactly what you're buying at Tan Y Castell
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
Tan Y Castell's carbon output is low for the local stock.
EPC Rating
Planning history
Tan Y Castell has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
Sales history & valuation
Tan Y Castell has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£145,000
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 Tan Y Castell, 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
On co₂ emissions, Tan Y Castell stands well clear of the street.
EPC Rating
75 (C)
Street avg 68 (D)
Floor Area
33 m²
Street avg 44 m²
CO₂ Emissions
0.5 t/year
Street avg 2.6 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Similar properties nearby
6a, Flat 3, Chalybeate Street
SY23 1HS
6a, Flat 2, Bridge Street
SY23 1PY
6a, Flat 4, Bridge Street
SY23 1PY
6a, Flat 1, Bridge Street
SY23 1PY
6a, Flat 3, Bridge Street
SY23 1PY
15 Tabernacle Flats, Powell Street
SY23 1RQ
14 Tabernacle Flats, Powell Street
SY23 1RQ
16 Tabernacle Flats, Powell Street
SY23 1RQ
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.