21 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BA
About 21 Llandeilo Road
21 Llandeilo Road is a three-bedroom detached house in Upper Brynamman, Ammanford, Ammanford (SA18 1BA). It has a recorded floor area of 120 m² (around 1292 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (January 2021) shows a D (score 58), a step below the typical UK home. When first surveyed in June 2011 the rating was F, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Poor to Good, lighting went from Average to Very Good and main heating went from Average to Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
At 120 m² it's 27% larger than the typical home in the postcode (95 m² median across 36 EPCs). Across 2002–2022, sale prices on this property compounded at 6.6% per year. Today's modelled estimate of £201,000 is 11.7% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£139/sq ft) was about 53.9% above the typical sold price in the postcode. Sold March 2022 for £179,950. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 21 Llandeilo Road
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
Energy performance
21 Llandeilo Road'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
Window efficiency improved
Low energy lighting percentage decreased
Switched from oil to mains gas, reducing emissions and costs
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
Planning history
21 Llandeilo Road has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 21 Llandeilo Road
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
Sale price has grown by over 3x since 2002.
£201,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.6% per year over 20 years.
£179,950
Growth on file: 6.6% per year over 20 years.
Sales timeline
3 March 2022Most recent
£179,950
+38.4%over 10 years16 December 2011
£130,000
+160.0%over 9 years8 April 2002
£50,000
Median price across the last 5 sales in SA18 1BA: £165,000 (2025–2021).
Nearby sales in SA18 1BA
29 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BA
Sold May 2025
£165,00025b, Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BA
Sold Mar 2024
£355,00018 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BA
Sold Dec 2023
£118,00025 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BA
Sold Aug 2021
£240,0006 Llandeilo Road, Upper Brynamman, Ammanford, SA18 1BA
Sold Jan 2021
£157,500
Everything we know about 21 Llandeilo Road, 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 Llandeilo Road homes
On price per m², 21 Llandeilo Road stands well clear of the street.
Price per m²
£1,500
Street avg £992
Floor Area
120 m²
Street avg 125 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
6.0 t/year
Street avg 6.0 t/year
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Heol Gelynen — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.