17 Tai Dyffryn, Nantgarw, Cardiff, CF15 7TS
About 17 Tai Dyffryn
17 Tai Dyffryn is a detached house in Nantgarw, Cardiff, Cardiff (CF15 7TS). It has a recorded floor area of 212 m² (around 2282 sq ft) and construction records dating it to 2007-2011. The latest certificate (April 2022) shows a C (score 80), near the top of the C band. The recommended improvements would push it to B (score 86).
One planning record on file: an annexe approved in 2025. Past consents include an annexe, meaningful when judging how the property has evolved. Last sold in May 2016, so it's been off the market for around 10 years. Today's modelled estimate of £619,000 is 47.4% above the 2016 sale price.
Energy performance
Achieving this rating across a home of this size is uncommon — larger homes typically score lower.
EPC Rating
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
From £895 · Includes VAT
Planning history
1 application on record at 17 Tai Dyffryn, Nantgarw, Cardiff, CF15 7TS
- Aug 2025AnnexFullOutcome in report
Erection of a single-storey ancillary residential annexe to rear garden to provide supported living accommodation for elderly relatives, including two bedrooms (one with en-suite), W/C, food preparation area and associated ecological enhancements (Amended plans received 25/07/2025).
- Documents
- 12 docs on file
- Reference
- 25/0609/FUL
Unlock 17 Tai Dyffryn, Nantgarw, Cardiff, CF15 7TS'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- Every decision — granted, refused or withdrawn (1 on record)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 12 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
17 Tai Dyffryn valuation sits well clear of the typical sold price in this postcode.
£619,000
Modelled from EPC, postcode comparables.
£420,000
Recorded with HM Land Registry.
Sales timeline
5 May 2016Most recent
£420,000
Median price across the last 5 sales in CF15 7TS: £430,000 (2025–2017).
Nearby sales in CF15 7TS
18 Tai Dyffryn, Nantgarw, Cardiff, CF15 7TS
Sold Jun 2025
£650,0004 Tai Dyffryn, Nantgarw, Cardiff, CF15 7TS
Sold Feb 2023
£310,00011 Tai Dyffryn, Nantgarw, Cardiff, CF15 7TS
Sold Jun 2021
£470,00016 Tai Dyffryn, Nantgarw, Cardiff, CF15 7TS
Sold Apr 2018
£430,0008 Tai Dyffryn, Nantgarw, Cardiff, CF15 7TS
Sold Apr 2017
£375,000
Versus other Tai Dyffryn homes
EPC Rating for 17 Tai Dyffryn runs comfortably ahead of the street norm.
Price per m²
£1,981
Street avg £2,082
Floor Area
212 m²
Street avg 187 m²
Habitable Rooms
8 rooms
Street avg 7 rooms
CO₂ Emissions
4.2 t/year
Street avg 5.0 t/year
Similar properties nearby
1 Cules Terrace, Taffs Well
CF15 7QJ
1 Birch Hill, Tongwynlais
CF15 7LL
1 Clos Llewellyn, Taffs Well
CF15 7AT
1 Forest Cottage, Castle Road, Tongwynlais
CF15 7JR
1 Brynau Road, Taffs Well
CF15 7SA
1 Cross Street, Tongwynlais
CF15 7NQ
1 Alfred Terrace, Taffs Well
CF15 7RJ
1 Bute Villa, Taffs Well
CF15 7QP
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Yr Hendre — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







