4 Parc Derwen, Garnswllt, Ammanford, SA18 2RJ
About 4 Parc Derwen
4 Parc Derwen is a detached house in Garnswllt, Ammanford, Ammanford (SA18 2RJ). It has a recorded floor area of 141 m² (around 1515 sq ft) and council tax band F. The latest certificate (August 2011) shows a C (score 80), near the top of the C band. The recommended improvements would push it to B (score 81). Main heating runs on oil. The latest certificate is from August 2011, so improvements made since then won't be reflected.
Today's modelled estimate of £362,000 sits 72.4% above the 2011 sale of £210,000. On a £-per-square-foot basis, the last sale (£139/sq ft) was about 19.4% above the typical sold price in the postcode. 15 years since the last transfer (December 2011). At 141 m² it's 29.6% smaller than the typical home in the postcode (200 m² median across 3 EPCs).
Know exactly what you're buying at 4 Parc Derwen
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
4 Parc Derwen'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This certificate is over 10 years old and is no longer valid.Expired 18 Aug 2021
EPC Rating
Planning history
4 Parc Derwen has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 4 Parc Derwen
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
4 Parc Derwen valuation sits well clear of the typical sold price in this postcode.
£362,000
Modelled from EPC, postcode comparables.
£210,000
Recorded with HM Land Registry.
Sales timeline
2 December 2011Most recent
£210,000
Median price across the last 5 sales in SA18 2RJ: £249,950 (2018–2006).
Everything we know about 4 Parc Derwen, 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 Parc Derwen homes
4 Parc Derwen outperforms the street on years held by a wide margin.
Price per m²
£1,492
Street avg £1,435
Floor Area
141 m²
Street avg 182 m²
CO₂ Emissions
3.6 t/year
Street avg 5.0 t/year
Years Held
15 years
Street avg 9 years
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Lon-y-Felin — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.