11 Ael Y Bryn, Ystradgynlais, Swansea, SA9 1HY
About 11 Ael Y Bryn
11 Ael Y Bryn is a three-bedroom semi-detached house in Ystradgynlais, Swansea, Swansea (SA9 1HY). It has a recorded floor area of 92 m² (around 990 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (March 2017) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it C (December 2012); the latest reading is 2 bands lower. Between certificates, wall efficiency dropped from Good to Poor and roof efficiency dropped from Very Good to Very Poor. The recommended improvements would lift it to C (score 78), a 2-band jump.
At 92 m² the property is well over the postcode median (70 m² across 41 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2013–2017, sale prices on this property compounded at 3.5% per year. Today's modelled estimate of £164,000 sits 68.2% above the 2017 sale of £97,500. Last sold in November 2017, so it's been off the market for around 9 years.
Know exactly what you're buying at 11 Ael Y Bryn
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
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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
11 Ael Y Bryn sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Low energy lighting percentage decreased
Planning history
11 Ael Y Bryn has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 11 Ael Y Bryn
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
11 Ael Y Bryn valuation sits well clear of the typical sold price in this postcode.
£164,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.5% per year over 4 years.
£97,500
Growth on file: 3.5% per year over 4 years.
Sales timeline
28 November 2017Most recent
£97,500
+14.7%over 3 years20 December 2013
£85,000
Median price across the last 5 sales in SA9 1HY: £120,000 (2023–2019).
Nearby sales in SA9 1HY
1 Ael Y Bryn, Ystradgynlais, Swansea, SA9 1HY
Sold Nov 2023
£120,00012 Ael Y Bryn, Ystradgynlais, Swansea, SA9 1HY
Sold Dec 2022
£120,00015 Ael Y Bryn, Ystradgynlais, Swansea, SA9 1HY
Sold Jul 2022
£127,0006 Ael Y Bryn, Ystradgynlais, Swansea, SA9 1HY
Sold Sept 2020
£93,0008 Ael Y Bryn, Ystradgynlais, Swansea, SA9 1HY
Sold May 2019
£95,000
Everything we know about 11 Ael Y Bryn, 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 Ael Y Bryn homes
11 Ael Y Bryn is notably below the street on epc rating.
Price per m²
£1,060
Street avg £1,138
Floor Area
92 m²
Street avg 77 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
7.0 t/year
Street avg 3.5 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Pen-y-Bryn — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.