4 Berthwin Street, Cardiff, CF11 9JH
About 4 Berthwin Street
4 Berthwin Street is a mid-terrace house in Cardiff (CF11 9JH). It has a recorded floor area of 180 m² (around 1938 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (February 2013) shows a D (score 57), a step below the typical UK home. The recommended improvements would push it to C (score 72). The latest certificate is from February 2013, so improvements made since then won't be reflected.
Across 1996–2013, sale prices on this property compounded at 7.7% per year. Today's modelled estimate of £656,000 sits 62% above the 2013 sale of £405,000. One planning record on file: new windows approved in 2013. Past consents include new windows, meaningful when judging how the property has evolved. At 180 m² it's 27.2% larger than the typical home in the postcode (142 m² median across 12 EPCs). On the market in March 2013 and unlisted since — roughly 13 years.
Energy performance
4 Berthwin Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 19 Feb 2023
EPC Rating
Certificate validity
Expired on 19 February 2023
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,155 · Includes VAT
Planning history
1 application on record at 4 Berthwin Street, Cardiff, CF11 9JH
- Jun 2013RenovationFullOutcome in report
REPLACING 1ST FLOOR REAR WINDOWS TO UPVC SASH WINDOWS IN A WHITE FOILED FINISH.
New Windows- Documents
- 9 docs on file
- Reference
- 13/00613/DCH
Unlock 4 Berthwin Street, Cardiff, CF11 9JH'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- Every decision — granted, refused or withdrawn (1 on record)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 4 notable nearby
- The 9 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
4 Berthwin Street has more than tripled in price since its earliest registered sale in 1996.
£656,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.7% per year over 16 years.
£405,000
Growth on file: 7.7% per year over 16 years.
Sales timeline
28 March 2013Most recent
£405,000
+237.5%over 16 years10 October 1996
£120,000
Median price across the last 5 sales in CF11 9JH: £540,000 (2024–2018).
Nearby sales in CF11 9JH
Versus other Berthwin Street homes
4 Berthwin Street outperforms the street on floor area by a wide margin.
Price per m²
£2,250
Street avg £3,202
Floor Area
180 m²
Street avg 149 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
7.8 t/year
Street avg 6.9 t/year
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The neighbourhood at a glance
Crime
362/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Berthwin Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







