21 Heol Las, Ammanford, SA18 3EB
About 21 Heol Las
21 Heol Las is a three-bedroom semi-detached house in Ammanford (SA18 3EB). It has a recorded floor area of 104 m² (around 1119 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (September 2020) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in April 2010 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Poor to Good and window efficiency went from Average to Good. The recommended improvements would lift it to B (score 83), a 2-band jump.
Across 2006–2016, sale prices on this property compounded at 2% per year. Today's modelled estimate of £175,000 sits 66.7% above the 2016 sale of £105,000. On the market in December 2016 and unlisted since — roughly 10 years.
Know exactly what you're buying at 21 Heol Las
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
- Bathrooms2
Outside
- Private gardenfront_and_rear
Building
- Heating systemgas
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
Roof insulation improved
Planning history
21 Heol Las has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 1 thing worth checking at 21 Heol Las
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
21 Heol Las valuation sits well clear of the typical sold price in this postcode.
£175,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.0% per year over 11 years.
£105,000
Growth on file: 2.0% per year over 11 years.
Sales timeline
2 December 2016Most recent
£105,000
+23.5%over 10 years14 March 2006
£85,000
Median price across the last 5 sales in SA18 3EB: £149,950 (2023–2019).
Everything we know about 21 Heol Las, 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 Heol Las homes
Price per m²
£1,010
Street avg £1,073
Floor Area
104 m²
Street avg 110 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
4.5 t/year
Street avg 5.8 t/year
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
0.2 km
West End Newsagents — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.