20 Glenwood, Cardiff, CF23 6UR
About 20 Glenwood
20 Glenwood is a semi-detached house in Cardiff (CF23 6UR). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (June 2024) shows a C (score 74). When first surveyed in January 2014 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Very Good, window efficiency went from Average to Good and hot-water efficiency went from Average to Good; while wall efficiency dropped from Good to Average. The recommended improvements would push it to B (score 86).
Untraded for 18 years, with the last transfer in December 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 1999–2007, sale prices on this property compounded at 12.6% per year. Today's modelled estimate of £262,000 sits 94.1% above the 2007 sale of £135,000. One planning record on file: HMO conversion approved in 2023. Past consents include HMO conversion, meaningful when judging how the property has evolved.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Window efficiency improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
1 application on record at 20 Glenwood, Cardiff, CF23 6UR
- Aug 2023HMOFullOutcome in report
Change of use from a single family dwelling to a 4 bed hmo shared living accommodation.
- Documents
- 11 docs on file
- Reference
- 23/01316/FUL
Unlock 20 Glenwood, Cardiff, CF23 6UR'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- Every decision — granted, refused or withdrawn (1 on record)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 11 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Sale price has at least doubled since 1999.
£262,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.6% per year over 8 years.
£135,000
Growth on file: 12.6% per year over 8 years.
Sales timeline
7 December 2007Most recent
£135,000
-10.0%23 November 2007
£150,000
+194.1%over 8 years30 September 1999
£51,000
Median price across the last 5 sales in CF23 6UR: £230,000 (2025–2020).
Versus other Glenwood homes
20 Glenwood outperforms the street on epc rating by a wide margin.
Price per m²
£1,534
Street avg £2,021
Floor Area
88 m²
Street avg 93 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
2.5 t/year
Street avg 3.8 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
0.1 km
Glenwood — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







