1 Iestynian Avenue, Cardiff, CF11 9HU
About 1 Iestynian Avenue
1 Iestynian Avenue is a two-bedroom mid-terrace house in Cardiff (CF11 9HU). It has a recorded floor area of 62 m² (around 667 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (March 2020) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Good; while roof efficiency dropped from Good to Average and window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 83), a 3-band jump.
Most recent transfer was June 2025 at £300,000 — fresh data. Across 1998–2025, sale prices on this property compounded at 7.9% per year. On a £-per-square-foot basis, the last sale (£450/sq ft) was about 50.1% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms2
- Bathrooms1
- Dining roomYes
- CloakroomYes
Outside
- Private gardenYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
1 Iestynian Avenue has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Latest sale on 1 Iestynian Avenue was the highest on Land Registry record across the postcode.
£320,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.9% per year over 27 years.
£300,000
Growth on file: 7.9% per year over 27 years.
Sales timeline
26 June 2025Most recent
£300,000
+166.7%over 23 years2 November 2001
£112,500
+38.9%over 6 months19 April 2001
£81,000
+113.2%over 2 years23 April 1998
£38,000
Median price across the last 5 sales in CF11 9HU: £193,000 (2020–2015).
Similar properties nearby
1 Llandaff Road
CF11 9NF
1 Glynne Street
CF11 9NS
1 Gileston Road
CF11 9JS
1 Cwrt Penhill, Penhill Road
CF11 9SN
1 Cwrt Soffia, Cathedral Road
CF11 9AY
1 Gwern Hafren, Severn Grove
CF11 9EY
1 Clos Dewi Sant, Canton
CF11 9EW
1 Beacon Street
CF11 9QD
The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Halfway Hotel — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







