30 Bonllwyn, Ammanford, SA18 2EF
About 30 Bonllwyn
30 Bonllwyn is a three-bedroom semi-detached house in Ammanford (SA18 2EF). It has a recorded floor area of 89 m² (around 958 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (October 2016) shows an F (score 38), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 79), a 3-band jump.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. It changed hands recently, sold October 2025 for £130,000. Across 1996–2025, sale prices on this property compounded at 3.8% per year. Today's modelled estimate of £162,000 is 24.6% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£136/sq ft) was about 47% above the typical sold price in the postcode.
Know exactly what you're buying at 30 Bonllwyn
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
- Bathrooms1
- EnsuiteYes
Outside
- Private gardenrear
- Parkingoff_road
Building
- Heating systemgas
Energy performance
30 Bonllwyn sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Planning history
30 Bonllwyn has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 30 Bonllwyn
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
Sale price has grown by over 3x since 1996.
£162,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.8% per year over 29 years.
£130,000
Growth on file: 3.8% per year over 29 years.
Sales timeline
14 October 2025Most recent
£130,000
+202.3%over 29 years16 May 1996
£43,000
Median price across the last 5 sales in SA18 2EF: £139,995 (2025–2021).
Everything we know about 30 Bonllwyn, 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 Bonllwyn homes
Years Held for 30 Bonllwyn lags the street by a wide margin.
Price per m²
£1,461
Street avg £1,211
Floor Area
89 m²
Street avg 109 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
7.5 t/year
Street avg 5.5 t/year
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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
0.0 km
Blaenau — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.