18 Dolfain, Ystradgynlais, Swansea, SA9 1RA
About 18 Dolfain
18 Dolfain is a three-bedroom semi-detached house in Ystradgynlais, Swansea, Swansea (SA9 1RA). It has a recorded floor area of 90 m² (around 969 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (June 2012) shows an E (score 48), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 77), a 2-band jump. The latest certificate is from June 2012, so improvements made since then won't be reflected.
Untraded for 28 years, with the last transfer in November 1998. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £137,000 sits 552.4% above the 1998 sale of £21,000. On a £-per-square-foot basis, the last sale (£22/sq ft) was about 76.2% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 81% of similar EPCs).
Know exactly what you're buying at 18 Dolfain
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 21 Jun 2022
EPC Rating
Planning history
18 Dolfain has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 18 Dolfain
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
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Sales history & valuation
Latest sale on 18 Dolfain was the lowest on Land Registry record across the postcode.
£137,000
Modelled from EPC, postcode comparables.
£21,000
Recorded with HM Land Registry.
Sales timeline
12 November 1998Most recent
£21,000
Median price across the last 5 sales in SA9 1RA: £102,500 (2024–2022).
Nearby sales in SA9 1RA
12 Dolfain, Ystradgynlais, Swansea, SA9 1RA
Sold May 2024
£60,0005 Dolfain, Ystradgynlais, Swansea, SA9 1RA
Sold Apr 2024
£102,50038 Dolfain, Ystradgynlais, Swansea, SA9 1RA
Sold Mar 2023
£125,00028 Dolfain, Ystradgynlais, Swansea, SA9 1RA
Sold Nov 2022
£113,00047 Dolfain, Ystradgynlais, Swansea, SA9 1RA
Sold Aug 2021
£92,000
Everything we know about 18 Dolfain, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Dolfain homes
On price per m², 18 Dolfain runs well behind the street norm.
Price per m²
£233
Street avg £889
Floor Area
90 m²
Street avg 75 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
5.3 t/year
Street avg 4.0 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Stage One Garage — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.