33 Derwen Fawr, Llandybie, Ammanford, SA18 2UY
About 33 Derwen Fawr
33 Derwen Fawr is a three-bedroom detached house in Llandybie, Ammanford, Ammanford (SA18 2UY). It has a recorded floor area of 98 m² (around 1060 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (May 2011) shows a D (score 59), a step below the typical UK home. The rating has held steady at D across 2 certificates since June 2009. Between certificates, roof efficiency went from Good to Very Good, window efficiency went from Poor to Average and lighting went from Average to Very Good; while hot-water efficiency dropped from Good to Average. The latest certificate is from May 2011, so improvements made since then won't be reflected.
Across 2009–2013, sale prices on this property compounded at -1.7% per year. Today's modelled estimate of £221,000 sits 63.7% above the 2013 sale of £135,000. On a £-per-square-foot basis, the last sale (£127/sq ft) was about 20.3% below the postcode norm. At 98 m² it's 21.6% larger than the typical home in the postcode (81 m² median across 17 EPCs). 13 years since the last transfer (August 2013).
Know exactly what you're buying at 33 Derwen Fawr
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
- Dining roomYes
Outside
- Private gardenfront_and_rear
- Garagesingle, detached
Building
- Heating systemgas_fired
Energy performance
33 Derwen Fawr'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This certificate is over 10 years old and is no longer valid.Expired 11 May 2021
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
33 Derwen Fawr has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 33 Derwen Fawr
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
33 Derwen Fawr valuation sits well clear of the typical sold price in this postcode.
£221,000
Modelled from EPC, postcode comparables and a sale-price growth of -1.7% per year over 4 years.
£135,000
Growth on file: -1.7% per year over 4 years.
Sales timeline
29 August 2013Most recent
£135,000
-6.9%over 4 years2 August 2009
£145,000
Median price across the last 5 sales in SA18 2UY: £206,000 (2024–2019).
Nearby sales in SA18 2UY
36 Derwen Fawr, Llandybie, Ammanford, SA18 2UY
Sold Nov 2024
£238,00010 Derwen Fawr, Llandybie, Ammanford, SA18 2UY
Sold Nov 2023
£205,0009 Derwen Fawr, Llandybie, Ammanford, SA18 2UY
Sold Aug 2023
£250,00017 Derwen Fawr, Llandybie, Ammanford, SA18 2UY
Sold Mar 2021
£206,00035 Derwen Fawr, Llandybie, Ammanford, SA18 2UY
Sold May 2019
£150,000
Everything we know about 33 Derwen Fawr, 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 Derwen Fawr homes
On co₂ emissions, 33 Derwen Fawr runs well behind the street norm.
Price per m²
£1,371
Street avg £1,949
Floor Area
98 m²
Street avg 93 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
4.9 t/year
Street avg 4.1 t/year
Similar properties nearby
1 Church Street
SA18 2NR
1 Colonel Road, Betws
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1 Brynmawr Lane
SA18 2BY
1 Bryn Derwen Road
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1 Carreg Y Dwfn, Llandyfan
SA18 2UB
1 Derwen Fawr, Llandybie
SA18 2UY
1 Bankyfelin, Llandybie
SA18 2TE
1 Brodawel, Betws
SA18 2GY
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
Glynhir Road — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.