11 Gerddi Taf, Llandaff, Cardiff, CF5 2SQ
About 11 Gerddi Taf
11 Gerddi Taf is a detached house in Llandaff, Cardiff, Cardiff (CF5 2SQ). It has a recorded floor area of 210 m² (around 2260 sq ft), construction records dating it to 2003-2006 and council tax band G. The latest certificate (August 2024) shows a C (score 76), near the top of the C band. When first surveyed in January 2009 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 82).
Across 2002–2017, sale prices on this property compounded at 3.7% per year. Today's modelled estimate of £732,000 sits 50.3% above the 2017 sale of £487,000. At 210 m² it's 28.8% larger than the typical home in the postcode (163 m² median across 7 EPCs). 9 years since the last transfer (June 2017).
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Cavity wall insulation installed
Floor insulation added or improved
More low energy lighting installed
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Planning history
11 Gerddi Taf has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
11 Gerddi Taf valuation sits well clear of the typical sold price in this postcode.
£732,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.7% per year over 15 years.
£487,000
Growth on file: 3.7% per year over 15 years.
Sales timeline
29 June 2017Most recent
£487,000
-1.6%over 2 years27 May 2015
£495,000
+74.9%over 12 years23 June 2002
£283,000
Median price across the last 5 sales in CF5 2SQ: £480,000 (2025–2015).
Nearby sales in CF5 2SQ
17 Gerddi Taf, Llandaff, Cardiff, CF5 2SQ
Sold May 2025
£687,0002 Gerddi Taf, Llandaff, Cardiff, CF5 2SQ
Sold Jun 2024
£765,0004 Gerddi Taf, Llandaff, Cardiff, CF5 2SQ
Sold May 2016
£480,00013 Gerddi Taf, Llandaff, Cardiff, CF5 2SQ
Sold Apr 2016
£430,0003 Gerddi Taf, Llandaff, Cardiff, CF5 2SQ
Sold May 2015
£420,000
Versus other Gerddi Taf homes
On floor area, 11 Gerddi Taf stands well clear of the street.
Price per m²
£2,319
Street avg £3,093
Floor Area
210 m²
Street avg 167 m²
Habitable Rooms
5 rooms
Street avg 8 rooms
CO₂ Emissions
4.8 t/year
Street avg 4.9 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Burne Jones Close — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







