42 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BG
About 42 Llandeilo Road
42 Llandeilo Road is a detached house in Upper Brynamman, Ammanford, Ammanford (SA18 1BG). It has a recorded floor area of 110 m² (around 1184 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (March 2020) shows a C (score 69), just inside the C band. When first surveyed in January 2012 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Good; while roof efficiency dropped from Good to Average. The recommended improvements would lift it to A (score 100), a 2-band jump.
Across 2013–2020, sale prices on this property compounded at 6.6% per year. Today's modelled estimate of £234,000 sits 76.6% above the 2020 sale of £132,500. On a £-per-square-foot basis, the last sale (£112/sq ft) was about 65.2% above the typical sold price in the postcode. One planning record on file: an extension approved in 2023. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. Sold April 2020 for £132,500.
Know exactly what you're buying at 42 Llandeilo Road
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
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Low energy lighting percentage decreased
Hot water system changed
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
Switched from oil to mains gas, reducing emissions and costs
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
Planning history
- Feb 2023Loft ConversionFullIn report
Extension: Two storey · Rear of property
Removal of existing Conservatory, construction of two storey rear extension and loft conversion
Extension- Documents
- 11 docs on file
- Reference
- PL/05207
We flagged 1 thing worth checking at 42 Llandeilo Road
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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£234,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.6% per year over 7 years.
£132,500
Growth on file: 6.6% per year over 7 years.
Sales timeline
30 April 2020Most recent
£132,500
+55.9%over 6 years20 May 2013
£85,000
Median price across the last 5 sales in SA18 1BG: £173,000 (2025–2019).
Nearby sales in SA18 1BG
40 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BG
Sold Jan 2025
£189,99538 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BG
Sold Apr 2022
£182,00098 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BG
Sold Jan 2022
£173,00050 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BG
Sold Mar 2020
£104,000106 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BG
Sold Apr 2019
£70,000
Everything we know about 42 Llandeilo Road, 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 Llandeilo Road homes
42 Llandeilo Road is notably below the street on years held.
Price per m²
£1,205
Street avg £847
Floor Area
110 m²
Street avg 107 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
3.9 t/year
Street avg 5.3 t/year
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Heol Gelynen — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.