21 Lon Hir, Alltwen, Pontardawe, Swansea, SA8 3DQ
About 21 Lon Hir
21 Lon Hir is a three-bedroom detached house in Pontardawe, Swansea, Swansea (SA8 3DQ). It has a recorded floor area of 122 m² (around 1313 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (June 2025) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2014. Between certificates, wall efficiency went from Very Poor to Poor; while window efficiency dropped from Average to Poor and lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 76).
At 122 m² the property is well over the postcode median (86 m² across 13 EPCs), placing it in the larger end of the local stock. Most recent transfer was November 2025 at £254,000 — fresh data. Across 2014–2025, sale prices on this property compounded at 6.2% per year. Today's modelled estimate of £291,000 is 14.6% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£193/sq ft) was about 68.3% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms3
- Bathrooms2
- Dining roomYes
- FireplaceYes
Outside
- Private gardenYes
- GarageYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
21 Lon Hir has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
Latest sale on 21 Lon Hir was the highest on Land Registry record across the postcode.
£291,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.2% per year over 11 years.
£254,000
Growth on file: 6.2% per year over 11 years.
Sales timeline
7 November 2025Most recent
£254,000
+95.4%over 11 years11 September 2014
£130,000
Median price across the last 5 sales in SA8 3DQ: £110,000 (2024–2021).
Nearby sales in SA8 3DQ
31 Lon Hir, Alltwen, Pontardawe, Swansea, SA8 3DQ
Sold Mar 2024
£210,0005 Lon Hir, Alltwen, Pontardawe, Swansea, SA8 3DQ
Sold Apr 2023
£110,00010 Lon Hir, Alltwen, Pontardawe, Swansea, SA8 3DQ
Sold Nov 2022
£160,0002 Lon Hir, Alltwen, Pontardawe, Swansea, SA8 3DQ
Sold Feb 2021
£105,00013b, Lon Hir, Alltwen, Pontardawe, Swansea, SA8 3DQ
Sold Apr 2017
£45,000
Versus other Lon Hir homes
On years held, 21 Lon Hir runs well behind the street norm.
Price per m²
£2,082
Street avg £1,577
Floor Area
122 m²
Street avg 100 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
4.6 t/year
Street avg 5.2 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
Graig Road Roundabout — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







