20 Hollybush Road, Cardiff, CF23 6TA
About 20 Hollybush Road
20 Hollybush Road is a detached house in Cardiff (CF23 6TA). It has a recorded floor area of 228 m² (around 2454 sq ft), construction records dating it to 1930-1949 and council tax band H. The latest certificate (December 2015) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in February 2013 the rating was F, the property has climbed 2 bands since. Between certificates, window efficiency went from Very Poor to Good, hot-water efficiency went from Poor to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 78). The latest certificate is from December 2015, so improvements made since then won't be reflected.
Today's modelled estimate of £891,000 sits 83.7% above the 2013 sale of £485,000. On a £-per-square-foot basis, the last sale (£198/sq ft) was about 30.1% above the typical sold price in the postcode. One planning record on file: an extension approved in 2014. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. 12 years since the last transfer (December 2013).
Energy performance
20 Hollybush Road's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 03 Dec 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water system upgraded
Single glazing replaced with double or better glazing
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,360 · Includes VAT
Planning history
1 application on record at 20 Hollybush Road, Cardiff, CF23 6TA
- Mar 2014Loft ConversionFullOutcome in report
Extension: Single storey · Rear of property
GROUND FLOOR REAR EXTENSION PROVIDING ORANGERY, FIRST FLOOR SIDE EXTENSION PROVIDING ADDITIONAL BEDROOM AND ENSUITE, PLUS LOFT CONVERSION PROVIDING HOBBY ROOM, INCLUDING REAR ROOF EXTENSION (DOMER WINDOW)
Extension- Documents
- 12 docs on file
- Reference
- 14/00011/DCH
Unlock 20 Hollybush Road, Cardiff, CF23 6TA'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- Every decision — granted, refused or withdrawn (1 on record)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 12 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
20 Hollybush Road valuation sits well clear of the typical sold price in this postcode.
£891,000
Modelled from EPC, postcode comparables.
£485,000
Recorded with HM Land Registry.
Sales timeline
6 December 2013Most recent
£485,000
Median price across the last 5 sales in CF23 6TA: £762,500 (2025–2016).
Nearby sales in CF23 6TA
Versus other Hollybush Road homes
Price per m²
£2,127
Street avg £2,158
Floor Area
228 m²
Street avg 238 m²
Habitable Rooms
8 rooms
Street avg 8 rooms
CO₂ Emissions
7.9 t/year
Street avg 8.8 t/year
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.3 km
Wern Goch — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







