16 Dol Y Dderwen, Ystradgynlais, Swansea, SA9 1QJ
About 16 Dol Y Dderwen
16 Dol Y Dderwen is a mid-terrace house in Ystradgynlais, Swansea, Swansea (SA9 1QJ). It has a recorded floor area of 86 m² (around 924 sq ft), construction records dating it to 1991-1995 and council tax band B. The latest certificate (July 2011) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 74). The latest certificate is from July 2011, so improvements made since then won't be reflected.
At 86 m² it's 24.4% larger than the typical home in the postcode (69 m² median across 21 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 81% of similar EPCs).
Know exactly what you're buying at 16 Dol Y Dderwen
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
Energy performance
16 Dol Y Dderwen's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 18 Jul 2021
EPC Rating
Planning history
16 Dol Y Dderwen has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 16 Dol Y Dderwen
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
30-day money-back guarantee
Sales history & valuation
16 Dol Y Dderwen has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£138,000
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 SA9 1QJ: £116,000 (2016–1996).
Everything we know about 16 Dol Y Dderwen, 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 Dol Y Dderwen homes
On epc rating, 16 Dol Y Dderwen runs well behind the street norm.
EPC Rating
68 (D)
Street avg 72 (C)
Floor Area
86 m²
Street avg 80 m²
CO₂ Emissions
3.3 t/year
Street avg 2.7 t/year
Habitable Rooms
5 rooms
Street avg 5 rooms
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Lluest — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.