40 Arfryn, Upper Brynamman, Ammanford, SA18 1AS
About 40 Arfryn
40 Arfryn is a three-bedroom semi-detached house in Upper Brynamman, Ammanford, Ammanford (SA18 1AS). It has a recorded floor area of 83 m² (around 893 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (June 2020) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it D (October 2008); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Poor and lighting went from Poor to Good; while wall efficiency dropped from Good to Poor. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on oil.
It hasn't traded since October 2005, a hold of 21 years that's notably long for the area. Today's modelled estimate of £126,000 sits 121.1% above the 2005 sale of £57,000. On a £-per-square-foot basis, the last sale (£64/sq ft) was about 29.7% below the postcode norm.
Know exactly what you're buying at 40 Arfryn
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
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 upgraded for better temperature management
Window efficiency improved
More low energy lighting installed
Planning history
40 Arfryn has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 40 Arfryn
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
40 Arfryn valuation sits well clear of the typical sold price in this postcode.
£126,000
Modelled from EPC, postcode comparables.
£57,000
Recorded with HM Land Registry.
Sales timeline
24 October 2005Most recent
£57,000
Median price across the last 5 sales in SA18 1AS: £99,000 (2025–2019).
Nearby sales in SA18 1AS
54 Arfryn, Upper Brynamman, Ammanford, SA18 1AS
Sold Sept 2025
£110,00012 Arfryn, Upper Brynamman, Ammanford, SA18 1AS
Sold Apr 2025
£115,00016 Arfryn, Upper Brynamman, Ammanford, SA18 1AS
Sold Dec 2020
£85,00052 Arfryn, Upper Brynamman, Ammanford, SA18 1AS
Sold Apr 2020
£99,00058 Arfryn, Upper Brynamman, Ammanford, SA18 1AS
Sold Apr 2009
£78,000
Everything we know about 40 Arfryn, 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 Arfryn homes
Price per m² for 40 Arfryn lags the street by a wide margin.
Price per m²
£687
Street avg £1,109
Floor Area
83 m²
Street avg 88 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
5.0 t/year
Street avg 5.8 t/year
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1 Brynlloi Road, Glanamman
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Arfryn — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.