5 Derwen Fawr, Llandybie, Ammanford, SA18 2UY
About 5 Derwen Fawr
5 Derwen Fawr is a three-bedroom detached house in Llandybie, Ammanford, Ammanford (SA18 2UY). It has a recorded floor area of 86 m² (around 924 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (September 2011) shows a D (score 59), a step below the typical UK home. The latest certificate is from September 2011, so improvements made since then won't be reflected.
Untraded for 28 years, with the last transfer in May 1998. Across 1996–1998, sale prices on this property compounded at 7.5% per year. Today's modelled estimate of £226,000 sits 276.7% above the 1998 sale of £60,000. On a £-per-square-foot basis, the last sale (£65/sq ft) was about 59.3% below the postcode norm. One planning record on file: an extension approved in 2013. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 5 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
Outside
- Private gardenfront_and_rear
- Parkingoff_road
Building
- Heating systemgas
Energy performance
5 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This certificate is over 10 years old and is no longer valid.Expired 06 Sept 2021
EPC Rating
Planning history
5 Derwen Fawr has an approved single-storey rear extension on the planning record.
- Jul 2013ExtensionFullIn report
Extension: Single storey · Rear of property
SINGLE STOREY EXTENSION TO REAR OF BUNGALOW AND DETACHED GARAGE
- Documents
- 6 docs on file
- Reference
- E/28389
We flagged 1 thing worth checking at 5 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
5 Derwen Fawr's modelled value sits at over four times its earliest registered sale price (1996).
£226,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.5% per year over 1 year.
£60,000
Growth on file: 7.5% per year over 1 year.
Sales timeline
7 May 1998Most recent
£60,000
+11.1%over 1 year21 November 1996
£54,000
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 5 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 price per m², 5 Derwen Fawr runs well behind the street norm.
Price per m²
£699
Street avg £2,005
Floor Area
86 m²
Street avg 94 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
4.4 t/year
Street avg 4.1 t/year
Similar properties nearby
1 Church Street
SA18 2NR
1 Brynmawr Lane
SA18 2BY
1 Colonel Road, Betws
SA18 2HB
1 Bryn Derwen Road
SA18 2DL
1 Carreg Y Dwfn, Llandyfan
SA18 2UB
1 Derwen Fawr, Llandybie
SA18 2UY
1 Brodawel, Betws
SA18 2GY
1 Bankyfelin, Llandybie
SA18 2TE
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.