11a, College Street, Ammanford, SA18 3AB
About 11a
11a is a mid-terrace house in Ammanford (SA18 3AB). It has a recorded floor area of 129 m² (around 1389 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (July 2025) shows an F (score 31), near the bottom of the EPC scale. When first surveyed in February 2017 the rating was G, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Average, window efficiency went from Very Poor to Average and lighting went from Poor to Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Average to Very Poor. The recommended improvements would lift it to C (score 78), a 3-band jump. Main heating runs on electricity. At 129 m² this is the 8th smallest of 9 units on EPC record in the building, where floor areas span 54–129 m². The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (31 versus a best of 73).
At 129 m² the property is well over the postcode median (68 m² across 8 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs).
Know exactly what you're buying at 11a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Heating controls upgraded for better temperature management
Hot water system changed
Single glazing replaced with double or better glazing
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Planning history
11a has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 1 thing worth checking at 11a
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
11a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£160,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 3 sales in SA18 3AB: £127,500 (2020–2018).
Everything we know about 11a, 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 epc rating, 11a runs well behind the street norm.
EPC Rating
31 (F)
Street avg 55 (D)
Floor Area
129 m²
Street avg 76 m²
CO₂ Emissions
2.3 t/year
Street avg 4.1 t/year
Habitable Rooms
6 rooms
Street avg 3 rooms
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
0.1 km
Ammanford Bus Station Stand 2 — bus station.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.