18 Heol Las, Ammanford, SA18 3EB
About 18 Heol Las
18 Heol Las is a three-bedroom detached house in Ammanford (SA18 3EB). It has a recorded floor area of 119 m² (around 1281 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (May 2016) shows an E (score 41), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 84), a 3-band jump. The latest certificate is from May 2016, so improvements made since then won't be reflected.
Across 1998–2018, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £225,000 sits 86% above the 2018 sale of £121,000. It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs). Sold June 2018 for £121,000. One historical planning record sits against the property in 2025.
Know exactly what you're buying at 18 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
- Dining roomYes
- CloakroomYes
- StudyYes
Outside
- Private gardenYes
- GarageYes
Energy performance
18 Heol Las's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 02 May 2026
EPC Rating
Planning history
- Aug 2025FullIn report
Use a spare front room for tattoo removal for pre-booked appointments
- Documents
- 7 docs on file
- Reference
- PL/09562
We flagged 1 thing worth checking at 18 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
18 Heol Las has more than doubled in price since the earliest registered sale in 1998.
£225,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 20 years.
£121,000
Growth on file: 4.7% per year over 20 years.
Sales timeline
21 June 2018Most recent
£121,000
+9.0%over 1 year9 November 2016
£111,000
+124.2%over 18 years27 October 1998
£49,500
Median price across the last 5 sales in SA18 3EB: £149,950 (2023–2019).
Everything we know about 18 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
18 Heol Las is notably below the street on epc rating.
Price per m²
£1,017
Street avg £1,072
Floor Area
119 m²
Street avg 109 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
8.9 t/year
Street avg 5.4 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.