11 Cyncoed Avenue, Cardiff, CF23 6ST
About 11 Cyncoed Avenue
11 Cyncoed Avenue is a detached house in Cardiff (CF23 6ST). It has a recorded floor area of 239 m² (around 2573 sq ft) and construction records dating it to 1930-1949. The latest certificate (September 2018) shows a D (score 57), a step below the typical UK home. The recommended improvements would push it to C (score 77).
At 239 m² the property is well over the postcode median (170 m² across 3 EPCs), placing it in the larger end of the local stock. 3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Today's modelled estimate of £981,000 is 25.8% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£303/sq ft) was about 29.6% above the typical sold price in the postcode. Last sale on file: £780,000 in November 2019.
Everything you need to know about 11 Cyncoed Avenue
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
The data behind every report
Energy performance
11 Cyncoed Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 17 September 2028
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 £1,495 · Includes VAT
Planning history
3 applications on record at 11 Cyncoed Avenue, Cardiff, CF23 6ST
- Jan 2019PorchFullOutcome in report
Extension: Two storey · Side of property
REMOVAL OF EXISTING FLAT ROOF 2 STOREY SIDE EXTENSION, FRONT LEAN-TO PORCH AND FLAT ROOF REAR EXTENSION. PROPOSED 2 STOREY SIDE EXTENSION TO REPLACE EXISTING, MODIFIED PORCH AND RELOCATION OF FRONT DOOR. PROPOSED CONTEMPORARY SINGLE STOREY REAR EXTENSION.
Extension- Documents
- 11 docs on file
- Reference
- 18/03017/DCH
- More recent applications — locked
- PorchJul 2023Decision
- PorchJul 2023Decision
Unlock 11 Cyncoed Avenue, Cardiff, CF23 6ST's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 1 notable nearby
- The 25 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
11 Cyncoed Avenue valuation sits well clear of the typical sold price in this postcode.
£981,000
Modelled from EPC, postcode comparables.
£780,000
Recorded with HM Land Registry.
Sales timeline
29 November 2019Most recent
£780,000
Median price across the last 5 sales in CF23 6ST: £645,000 (2025–1999).
Nearby sales in CF23 6ST
Versus other Cyncoed Avenue homes
11 Cyncoed Avenue outperforms the street on floor area by a wide margin.
Price per m²
£3,264
Street avg £3,053
Floor Area
239 m²
Street avg 172 m²
Habitable Rooms
9 rooms
Street avg 7 rooms
CO₂ Emissions
9.6 t/year
Street avg 8.3 t/year
Everything you need to know about 11 Cyncoed Avenue
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Crime
169/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Cyncoed Avenue — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.