21 Bryn Llewelyn, Alltwen, Pontardawe, Swansea, SA8 3BR
About 21 Bryn Llewelyn
21 Bryn Llewelyn is a three-bedroom semi-detached house in Pontardawe, Swansea, Swansea (SA8 3BR). It has a recorded floor area of 133 m² (around 1432 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (July 2022) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in February 2009 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Average to Good and lighting went from Good to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 80). Other recorded features include notable views and outbuildings. Period features are noted in the property record.
At 133 m² the property is well over the postcode median (79 m² across 7 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 2009–2022, sale prices on this property compounded at 8.7% per year. On a £-per-square-foot basis, the last sale (£217/sq ft) was about 31.5% above the typical sold price in the postcode. Sold October 2022 for £310,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- StudyYes
Outside
- Private gardenYes
- GarageYes
- OutbuildingsYes
- Notable viewsYes
Building
- Period featuresYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Window efficiency improved
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has permanent outbuildings, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
21 Bryn Llewelyn has an approved single-storey side and rear extension on the planning record.
2 applications on record at 21 Bryn Llewelyn, Alltwen, Pontardawe, Swansea, SA8 3BR
- Apr 2009ExtensionFullOutcome in report
Extension: Single storey · Side and rear of property
SINGLE STOREY SIDE AND REAR EXTENSION
- Council
- North
- Documents
- 9 docs on file
- Reference
- P2009/0281
- More recent applications — locked
- Change Of UseOct 2025Decision
Unlock 21 Bryn Llewelyn, Alltwen, Pontardawe, Swansea, SA8 3BR's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full
- The 9 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 21 Bryn Llewelyn was the highest on Land Registry record across the postcode.
£325,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.7% per year over 14 years.
£310,000
Growth on file: 8.7% per year over 14 years.
Sales timeline
23 October 2022Most recent
£310,000
+51.2%over 5 years31 October 2016
£205,000
+105.0%over 7 years1 April 2009
£100,000
Median price across the last 5 sales in SA8 3BR: £140,000 (2024–2015).
Nearby sales in SA8 3BR
23 Bryn Llewelyn, Alltwen, Pontardawe, Swansea, SA8 3BR
Sold Dec 2024
£257,0009 Bryn Llewelyn, Alltwen, Pontardawe, Swansea, SA8 3BR
Sold Mar 2024
£140,00037 Bryn Llewelyn, Alltwen, Pontardawe, Swansea, SA8 3BR
Sold Mar 2022
£118,00035 Bryn Llewelyn, Alltwen, Pontardawe, Swansea, SA8 3BR
Sold Dec 2017
£117,50027 Bryn Llewelyn, Alltwen, Pontardawe, Swansea, SA8 3BR
Sold Feb 2015
£147,500
Versus other Bryn Llewelyn homes
Floor Area for 21 Bryn Llewelyn runs comfortably ahead of the street norm.
Price per m²
£2,331
Street avg £2,079
Floor Area
133 m²
Street avg 76 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.7 t/year
Street avg 4.9 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Bryn Llewellyn — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







