91 Mountain Road, Upper Brynamman, Ammanford, SA18 1AN
About 91 Mountain Road
91 Mountain Road is a two-bedroom detached house in Upper Brynamman, Ammanford, Ammanford (SA18 1AN). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (January 2016) shows an F (score 35), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since June 2014. Between certificates, window efficiency went from Poor to Average and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Good to Average and main heating dropped from Good to Average. The recommended improvements would lift it to D (score 65), a 2-band jump. Main heating runs on oil. The latest certificate is from January 2016, so improvements made since then won't be reflected. Other recorded features include notable views.
At 69 m² it sits well below the postcode median (109 m² across 46 EPCs), making it one of the more compact homes locally. Across 2016–2021, sale prices on this property compounded at 7.1% per year. Today's modelled estimate of £186,000 is 24% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£202/sq ft) was about 109.3% above the typical sold price in the postcode. Most recent transfer: March 2021 at £150,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 91 Mountain 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
- Bedrooms2
- Bathrooms1
Outside
- Private gardenrear
- Notable viewsYes
Building
- Heating systemoil
Energy performance
91 Mountain Road'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This certificate is over 10 years old and is no longer valid.Expired 19 Jan 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
91 Mountain Road has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 91 Mountain 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
91 Mountain Road changed hands twice within eighteen months — unusual for the area.
£186,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.1% per year over 4 years.
£150,000
Growth on file: 7.1% per year over 4 years.
Sales timeline
23 March 2021Most recent
£150,000
+13.6%over 1 year6 March 2020
£132,000
+20.0%over 3 years22 September 2016
£110,000
Median price across the last 5 sales in SA18 1AN: £325,000 (2025–2021).
Nearby sales in SA18 1AN
124 Mountain Road, Upper Brynamman, Ammanford, SA18 1AN
Sold Nov 2025
£350,00095 Mountain Road, Upper Brynamman, Ammanford, SA18 1AN
Sold Jun 2025
£265,00092 Mountain Road, Upper Brynamman, Ammanford, SA18 1AN
Sold Jul 2023
£80,00081 Mountain Road, Upper Brynamman, Ammanford, SA18 1AN
Sold May 2022
£405,00086 Mountain Road, Upper Brynamman, Ammanford, SA18 1AN
Sold Apr 2021
£225,000
Everything we know about 91 Mountain 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 Mountain Road homes
On habitable rooms, 91 Mountain Road runs well behind the street norm.
Price per m²
£2,174
Street avg £1,263
Floor Area
69 m²
Street avg 149 m²
Habitable Rooms
3 rooms
Street avg 6 rooms
CO₂ Emissions
6.6 t/year
Street avg 9.6 t/year
Similar properties nearby
1 Banwen Place, Lower Brynamman
SA18 1SP
1 Bryn Road, Upper Brynamman
SA18 1AU
1 Brynceunant, Upper Brynamman
SA18 1AH
1 Brynamman Road, Lower Brynamman
SA18 1TR
1 Brynlloi Road, Glanamman
SA18 1EQ
1 Cemetery Road, Cwmgors
SA18 1PS
1 Bryn Avenue, Upper Brynamman
SA18 1BD
1 Ardwyn Road, Upper Brynamman
SA18 1AL
The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Derlwyn Arms — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.