Gwynfryn, College Street, Ammanford, SA18 2BU
About Gwynfryn
Gwynfryn is a six-bedroom detached house in Ammanford (SA18 2BU). It has a recorded floor area of 223 m² (around 2400 sq ft) and construction records dating it to before 1900. The latest certificate (March 2016) shows an F (score 37), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 70), a 3-band jump. The latest certificate is from March 2016, so improvements made since then won't be reflected. Other recorded features include attached land beyond the plot. Period features are noted in the property record.
At 223 m² the property is well over the postcode median (128 m² across 16 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). 6 bedrooms is on the larger side for this postcode, where 4 is the typical count. Today's modelled estimate of £418,000 is 38.2% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£126/sq ft) was about 23.7% above the typical sold price in the postcode. Last sold in July 2017, so it's been off the market for around 9 years. 6 planning records sit against the property, 5 approved, 0 refused.
Know exactly what you're buying at Gwynfryn
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
- Bedrooms6
- Bathrooms2
- Dining roomYes
Outside
- GarageYes
- LandYes
Building
- Heating systemgas
- Period featuresYes
Energy performance
Gwynfryn'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This certificate is over 10 years old and is no longer valid.Expired 07 Mar 2026
EPC Rating
Planning history
Gwynfryn has been through 5 approved planning applications — a well-evolved property.
- Nov 2023New BuildOutlineIn report
4 Detached Residential Units and Shared Private Drive Re-submission of Planning approval E/26685 (lapsed)
- Documents
- 26 docs on file
- Reference
- PL/04258
- May 2013OutlineIn report
THE FORMAL DISCHARGE OF CONDITIONS 4 AND 8 IN TERMS OF THE PROPOSAL AS A WHOLE, IN CONJUNCTION WITH THE PARTIAL DISCHARGE OF CONDITION 3, 9 AND 10 WITH RESPECT TO PLOT 1 - IN RELATION TO APPLICATION E/26685
- Documents
- 9 docs on file
- Reference
- E/27982
We flagged 1 thing worth checking at Gwynfryn
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
Gwynfryn valuation sits well clear of the typical sold price in this postcode.
£418,000
Modelled from EPC, postcode comparables.
£302,500
Recorded with HM Land Registry.
Sales timeline
24 July 2017Most recent
£302,500
Median price across the last 5 sales in SA18 2BU: £190,000 (2025–2022).
Nearby sales in SA18 2BU
79 College Street, Ammanford, SA18 2BU
Sold Mar 2025
£246,50039 College Street, Ammanford, SA18 2BU
Sold May 2024
£310,00081 College Street, Ammanford, SA18 2BU
Sold May 2023
£190,000Llys Y Coleg, Apartment 4, 35 College Street, Ammanford, SA18 2BU
Sold Sept 2022
£97,00063 College Street, Ammanford, SA18 2BU
Sold May 2022
£153,000
Everything we know about Gwynfryn, 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 College Street homes
On floor area, Gwynfryn stands well clear of the street.
Price per m²
£1,357
Street avg £1,257
Floor Area
223 m²
Street avg 145 m²
Habitable Rooms
10 rooms
Street avg 7 rooms
CO₂ Emissions
16.0 t/year
Street avg 9.1 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
Town Hall — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.