20 Banwen Place, Lower Brynamman, Ammanford, SA18 1SP
About 20 Banwen Place
20 Banwen Place is a detached house in Lower Brynamman, Ammanford, Ammanford (SA18 1SP). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (May 2025) shows an F (score 32), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since June 2014. Between certificates, roof efficiency went from Very Poor to Very Good and lighting went from Very Poor to Good; while window efficiency dropped from Average to Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 74), a 3-band jump. Main heating runs on oil.
At 111 m² the property is well over the postcode median (82 m² across 12 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £187,000 sits 149.3% above the 2014 sale of £75,000. On a £-per-square-foot basis, the last sale (£63/sq ft) was about 26.8% below the postcode norm. 12 years since the last transfer (July 2014).
Know exactly what you're buying at 20 Banwen Place
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
20 Banwen Place'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 changed
Hot water efficiency decreased
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Planning history
20 Banwen Place has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 20 Banwen Place
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
20 Banwen Place valuation sits well clear of the typical sold price in this postcode.
£187,000
Modelled from EPC, postcode comparables.
£75,000
Recorded with HM Land Registry.
Sales timeline
31 July 2014Most recent
£75,000
Median price across the last 5 sales in SA18 1SP: £98,000 (2024–2020).
Nearby sales in SA18 1SP
1 Banwen Place, Lower Brynamman, Ammanford, SA18 1SP
Sold Nov 2024
£149,950Gren Villa, Banwen Place, Lower Brynamman, Ammanford, SA18 1SP
Sold Jan 2024
£160,0005 Banwen Place, Lower Brynamman, Ammanford, SA18 1SP
Sold Jan 2021
£78,00015 Banwen Place, Lower Brynamman, Ammanford, SA18 1SP
Sold Jan 2021
£74,5002 Banwen Place, Lower Brynamman, Ammanford, SA18 1SP
Sold Mar 2020
£76,000
Everything we know about 20 Banwen Place, 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 Banwen Place homes
20 Banwen Place outperforms the street on floor area by a wide margin.
Price per m²
£676
Street avg £1,141
Floor Area
111 m²
Street avg 79 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
9.5 t/year
Street avg 6.1 t/year
Similar properties nearby
1 Bryn Road, Upper Brynamman
SA18 1AU
1 Bryn Avenue, Upper Brynamman
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1 Ardwyn Road, Upper Brynamman
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1 Chapel Street, Upper Brynamman
SA18 1AD
1 Brynamman Road, Lower Brynamman
SA18 1TR
1 Brynlloi Road, Glanamman
SA18 1EQ
1 Bishop Road, Garnant
SA18 1NA
1 Clos Bryncam, Garnant
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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
Banwen Place — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.