Swn Y Nant, Nantyglyn Road, Glanamman, Ammanford, SA18 2YT
About Swn Y Nant
Swn Y Nant is a four-bedroom detached house in Glanamman, Ammanford, Ammanford (SA18 2YT). It has a recorded floor area of 142 m² (around 1528 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (November 2016) shows an E (score 41), well below the UK norm with real room to improve. Earlier certificates rated it C (September 2012); the latest reading is 2 bands lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Very Good to Average. The recommended improvements would lift it to C (score 77), a 2-band jump. Other recorded features include a conservatory and a self-contained annexe.
Across 2007–2019, sale prices on this property compounded at 1.1% per year. Today's modelled estimate of £394,000 is 38.2% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£186/sq ft) was about 92.5% above the typical sold price in the postcode. Most recent transfer: July 2019 at £285,000. One historical planning record sits against the property in 2008.
Know exactly what you're buying at Swn Y Nant
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
- Bedrooms4
- Bathrooms3
- ConservatoryYes
Outside
- Private gardenYes
Energy performance
Swn Y Nant's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Planning history
- Jan 2008OutbuildingFullIn report
ERECTION OF SINGLE STOREY DETACHED GARAGE / SAUNA & GYM BUILDING
- Documents
- 10 docs on file
- Reference
- E/17987
We flagged 1 thing worth checking at Swn Y Nant
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
Swn Y Nant's sale-price growth has lagged the wider UK trajectory across its history on file.
£394,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.1% per year over 12 years.
£285,000
Growth on file: 1.1% per year over 12 years.
Sales timeline
25 July 2019Most recent
£285,000
+14.0%over 12 years11 April 2007
£249,995
Median price across the last 5 sales in SA18 2YT: £202,500 (2023–2018).
Nearby sales in SA18 2YT
4 Nantyglyn Road, Glanamman, Ammanford, SA18 2YT
Sold Nov 2023
£202,500Maes Y Wennol, Nantyglyn Road, Glanamman, Ammanford, SA18 2YT
Sold Jan 2020
£749,9998 Nantyglyn Road, Glanamman, Ammanford, SA18 2YT
Sold Jan 2019
£310,0002 Nantyglyn Road, Glanamman, Ammanford, SA18 2YT
Sold May 2018
£90,0006 Nantyglyn Road, Glanamman, Ammanford, SA18 2YT
Sold Mar 2018
£185,000
Everything we know about Swn Y Nant, 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 Nantyglyn Road homes
Swn Y Nant outperforms the street on price per m² by a wide margin.
Price per m²
£2,007
Street avg £1,263
Floor Area
142 m²
Street avg 183 m²
Habitable Rooms
5 rooms
Street avg 7 rooms
CO₂ Emissions
10.0 t/year
Street avg 7.7 t/year
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Amman Road Turn — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.