21 Ironbridge Road, Tongwynlais, Cardiff, CF15 7NJ
About 21 Ironbridge Road
21 Ironbridge Road is a three-bedroom mid-terrace house in Tongwynlais, Cardiff, Cardiff (CF15 7NJ). It has a recorded floor area of 77 m² (around 825 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (May 2009) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 65). The latest certificate is from May 2009, so improvements made since then won't be reflected.
Held since May 2003 — that's 23 years off the open market, well above the local norm. Today's modelled estimate of £257,000 sits 144.8% above the 2003 sale of £105,000. On a £-per-square-foot basis, the last sale (£127/sq ft) was about 31.8% below the postcode norm. One planning record on file: tree works approved in 2023. Past consents include tree works, meaningful when judging how the property has evolved. At 77 m² it's 15.8% smaller than the typical home in the postcode (91 m² median across 26 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs).
What this property has
Inside
- Bedrooms3
Energy performance
21 Ironbridge Road's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 19 May 2019
EPC Rating
Certificate validity
Expired on 19 May 2019
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
1 application on record at 21 Ironbridge Road, Tongwynlais, Cardiff, CF15 7NJ
- Mar 2023Tree WorksTreesOutcome in report
Oak - Rer Boundary - Reduce over extended branches growing out of the main crown by 1-1.5m to a suitable growth point. Remove all unstable deadwood over 25mm in diameter
- Documents
- 5 docs on file
- Reference
- 23/00611/WTTPP
Unlock 21 Ironbridge Road, Tongwynlais, Cardiff, CF15 7NJ's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 1 notable nearby
- The 5 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
21 Ironbridge Road valuation sits well clear of the typical sold price in this postcode.
£257,000
Modelled from EPC, postcode comparables.
£105,000
Recorded with HM Land Registry.
Sales timeline
5 May 2003Most recent
£105,000
Median price across the last 5 sales in CF15 7NJ: £307,000 (2026–2024).
Nearby sales in CF15 7NJ
17 Ironbridge Road, Tongwynlais, Cardiff, CF15 7NJ
Sold May 2026
£360,00037 Ironbridge Road, Tongwynlais, Cardiff, CF15 7NJ
Sold Jun 2025
£205,00031 Ironbridge Road, Tongwynlais, Cardiff, CF15 7NJ
Sold Apr 2025
£306,00035 Ironbridge Road, Tongwynlais, Cardiff, CF15 7NJ
Sold May 2024
£307,0005 Ironbridge Road, Tongwynlais, Cardiff, CF15 7NJ
Sold May 2024
£450,000
Versus other Ironbridge Road homes
Years Held for 21 Ironbridge Road runs comfortably ahead of the street norm.
Price per m²
£1,371
Street avg £2,688
Floor Area
77 m²
Street avg 100 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.3 t/year
Street avg 4.5 t/year
Similar properties nearby
1 Church Lane, Nantgarw
CF15 7TQ
1 Bute Street, Tongwynlais
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1 Church Street, Taffs Well
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1 Forest Cottage, Castle Road, Tongwynlais
CF15 7JR
1 Castell Coch View, Tongwynlais
CF15 7LA
1 Beechwood Road, Taffs Well
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1 Castle Road, Tongwynlais
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1 Anchor Street, Taffs Well
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The neighbourhood at a glance
Crime
85/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Iron Bridge — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







