121 Heol Y Garn, Garnswllt, Ammanford, SA18 2RP
About 121 Heol Y Garn
121 Heol Y Garn is a detached house in Garnswllt, Ammanford, Ammanford (SA18 2RP). It has a recorded floor area of 98 m² (around 1055 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (April 2024) shows an F (score 31), near the bottom of the EPC scale. The rating has held steady at F across 3 certificates since October 2016. Between certificates, roof efficiency went from Very Poor to Good and lighting went from Very Poor to Average. The recommended improvements would lift it to C (score 75), a 3-band jump. Main heating runs on oil.
Today's modelled estimate of £235,000 sits 62.1% above the 2024 sale of £145,000. On a £-per-square-foot basis, the last sale (£137/sq ft) was about 39.5% above the typical sold price in the postcode. Sold June 2024 for £145,000.
Know exactly what you're buying at 121 Heol Y Garn
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
121 Heol Y Garn's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Roof insulation improved
More low energy lighting installed
Planning history
121 Heol Y Garn has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 121 Heol Y Garn
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
121 Heol Y Garn's sale-price growth has lagged the wider UK trajectory across its history on file.
£235,000
Modelled from EPC, postcode comparables and a sale-price growth of 0.4% per year over 18 years.
£145,000
Growth on file: 0.4% per year over 18 years.
Sales timeline
6 June 2024Most recent
£145,000
+7.4%over 18 years9 April 2006
£135,000
Median price across the last 5 sales in SA18 2RP: £130,000 (2019–2015).
Nearby sales in SA18 2RP
148 Heol Y Garn, Garnswllt, Ammanford, SA18 2RP
Sold Dec 2019
£123,000127 Heol Y Garn, Garnswllt, Ammanford, SA18 2RP
Sold Nov 2019
£136,000123 Heol Y Garn, Garnswllt, Ammanford, SA18 2RP
Sold Apr 2019
£95,000141 Heol Y Garn, Garnswllt, Ammanford, SA18 2RP
Sold Jan 2019
£130,000147 Heol Y Garn, Garnswllt, Ammanford, SA18 2RP
Sold Nov 2015
£166,000
Everything we know about 121 Heol Y Garn, 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 Y Garn homes
Price per m² for 121 Heol Y Garn runs comfortably ahead of the street norm.
Price per m²
£1,480
Street avg £1,062
Floor Area
98 m²
Street avg 112 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
8.5 t/year
Street avg 8.1 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Garnswllt Square — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.