42 Bronwydd Avenue, Cardiff, CF23 5JQ
About 42 Bronwydd Avenue
42 Bronwydd Avenue is a four-bedroom detached house in Cardiff (CF23 5JQ). It has a recorded floor area of 144 m² (around 1550 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (June 2014) shows an E (score 42), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 80), a 2-band jump. The latest certificate is from June 2014, so improvements made since then won't be reflected.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. Today's modelled estimate of £681,000 is 37.5% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£319/sq ft) was about 21.8% above the typical sold price in the postcode. 12 years since the last transfer (August 2014).
What this property has
Inside
- Bedrooms4
- Bathrooms3
Energy performance
42 Bronwydd Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 16 Jun 2024
EPC Rating
Certificate validity
Expired on 16 June 2024
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Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
2 applications on record at 42 Bronwydd Avenue, Cardiff, CF23 5JQ
- Mar 2015DemolitionFullOutcome in report
Extension: Single storey · Rear of property
Demolition of existing utility room and conservatory and erection of single storey rear extension.
Extension- Documents
- 15 docs on file
- Reference
- 15/00374/DCH
- More recent applications — locked
- ExtensionMar 2018Decision
Unlock 42 Bronwydd Avenue, Cardiff, CF23 5JQ'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- Every decision — granted, refused or withdrawn (2 on record)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, plus 1 notable nearby
- The 21 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
42 Bronwydd Avenue valuation sits well clear of the typical sold price in this postcode.
£681,000
Modelled from EPC, postcode comparables.
£495,100
Recorded with HM Land Registry.
Sales timeline
26 August 2014Most recent
£495,100
Median price across the last 5 sales in CF23 5JQ: £487,600 (2025–2021).
Nearby sales in CF23 5JQ
44 Bronwydd Avenue, Cardiff, CF23 5JQ
Sold Nov 2025
£560,00029 Bronwydd Avenue, Cardiff, CF23 5JQ
Sold Oct 2024
£494,000Bronwydd House, Flat 2, 50 Bronwydd Avenue, Cardiff, CF23 5JQ
Sold Jul 2021
£390,000Bronwydd House, Flat 3, 50 Bronwydd Avenue, Cardiff, CF23 5JQ
Sold Jan 2021
£330,000Bronwydd House, Flat 1, 50 Bronwydd Avenue, Cardiff, CF23 5JQ
Sold Jan 2021
£487,600
Versus other Bronwydd Avenue homes
On price per m², 42 Bronwydd Avenue stands well clear of the street.
Price per m²
£3,438
Street avg £2,281
Floor Area
144 m²
Street avg 230 m²
Habitable Rooms
6 rooms
Street avg 8 rooms
CO₂ Emissions
9.1 t/year
Street avg 6.3 t/year
Similar properties nearby
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CF23 5RA
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1 Crystal Avenue
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The neighbourhood at a glance
Crime
169/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Greenlawns — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







