18 Heddfan South, Cardiff, CF23 7EA
About 18 Heddfan South
18 Heddfan South is a three-bedroom mid-terrace house in Cardiff (CF23 7EA). It has a recorded floor area of 96 m² (around 1033 sq ft), construction records dating it to 1983-1990 and council tax band B. Tenure is freehold. The latest certificate (September 2021) shows a C (score 72). The rating has held steady at C across 2 certificates since October 2009. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Poor to Good and hot-water efficiency went from Average to Good. The recommended improvements would push it to B (score 82).
It changed hands recently, sold May 2025 for £165,000. Across 2017–2025, sale prices on this property compounded at 6% per year. On a £-per-square-foot basis, the last sale (£160/sq ft) was about 89.7% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms3
- Dining roomYes
Outside
- Private gardenYes
Building
- TenureFreehold
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Wall insulation upgraded
Roof insulation improved
More low energy lighting installed
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Planning history
18 Heddfan South 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
18 Heddfan South valuation sits well clear of the typical sold price in this postcode.
£174,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.0% per year over 8 years.
£165,000
Growth on file: 6.0% per year over 8 years.
Sales timeline
19 May 2025Most recent
£165,000
+60.2%over 8 years9 May 2017
£103,000
Median price across the last 5 sales in CF23 7EA: £92,500 (2023–2010).
Nearby sales in CF23 7EA
Versus other Heddfan South homes
On years held, 18 Heddfan South runs well behind the street norm.
Price per m²
£1,719
Street avg £1,073
Floor Area
96 m²
Street avg 91 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
2.9 t/year
Street avg 2.6 t/year
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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
Heddfaen South — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







