10 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
About 10 Wyndham Street
10 Wyndham Street is a three-bedroom mid-terrace house in Tongwynlais, Cardiff, Cardiff (CF15 7LN). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (November 2024) shows a C (score 74). When first surveyed in October 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and window efficiency went from Poor to Good; while roof efficiency dropped from Good to Average. The recommended improvements would push it to B (score 87). Other recorded features include a loft.
At 102 m² the property is well over the postcode median (67 m² across 6 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 83% of similar EPCs). A recent sale: £306,000 in July 2025. Across the public record there are 4 sales, relatively high churn for a single property. One planning record on file: an extension approved in 2021. Past consents include an extension, meaningful when judging how the property has evolved. Across 2001–2025, sale prices on this property compounded at 6% per year. On a £-per-square-foot basis, the last sale (£279/sq ft) was about 22.3% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- LoftYes
Outside
- Private gardenYes
Building
- Heating systemGas
Energy performance
EPC Rating
Certificate validity
Valid until 5 November 2034
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Wall insulation improved
More low energy lighting installed
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 £955 · Includes VAT
Planning history
10 Wyndham Street has an approved single-storey side and rear extension on the planning record.
1 application on record at 10 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
- Feb 2021ExtensionFullOutcome in report
Extension: Single storey · Side and rear of property
SINGLE STOREY SIDE AND REAR EXTENSION
- Documents
- 9 docs on file
- Reference
- 20/02525/DCH
Unlock 10 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN'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 9 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
Latest sale on 10 Wyndham Street was the highest on Land Registry record across the postcode.
£304,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.0% per year over 24 years.
£306,000
Growth on file: 6.0% per year over 24 years.
Sales timeline
20 July 2025Most recent
£306,000
+70.0%over 11 years13 December 2013
£180,000
+55.2%over 9 years17 December 2003
£115,950
+54.6%over 2 years26 April 2001
£75,000
Median price across the last 5 sales in CF15 7LN: £190,000 (2025–2016).
Nearby sales in CF15 7LN
6 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
Sold Jan 2025
£225,00012 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
Sold Aug 2023
£156,0009 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
Sold Dec 2019
£238,50013 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
Sold Sept 2015
£254,9234 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
Sold Nov 2005
£159,950
Versus other Wyndham Street homes
On years held, 10 Wyndham Street runs well behind the street norm.
Price per m²
£3,000
Street avg £2,693
Floor Area
102 m²
Street avg 73 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
2.9 t/year
Street avg 4.2 t/year
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The neighbourhood at a glance
Crime
85/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Wyndham Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







