7 Mortimer Road, Cardiff, CF11 9JZ
About 7 Mortimer Road
7 Mortimer Road is a mid-terrace house in Cardiff (CF11 9JZ). It has a recorded floor area of 112 m² (around 1206 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (August 2024) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since February 2014. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Poor to Very Good; while roof efficiency dropped from Good to Average. The recommended improvements would push it to B (score 82).
At 112 m² the property is well over the postcode median (79 m² across 30 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 70% of similar EPCs). Last sold in March 2018, so it's been off the market for around 8 years. Across the public record there are 4 sales, relatively high churn for a single property. One planning record on file: an extension approved in 2018. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. Across 1997–2018, sale prices on this property compounded at 7.8% per year. Today's modelled estimate of £436,000 is 34.2% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£270/sq ft) was about 52.9% above the typical sold price in the postcode.
Energy performance
EPC Rating
Certificate validity
Valid until 28 August 2034
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
1 application on record at 7 Mortimer Road, Cardiff, CF11 9JZ
- Jul 2018Loft ConversionFullOutcome in report
Extension: Single storey · Rear of property
PROPOSED SINGLE STOREY EXTENSION AND PROPOSED DORMER LOFT CONVERSION WITH ALTERATIONS TO THE MAIN ROOF
Extension- Documents
- 5 docs on file
- Reference
- 18/01189/DCH
Unlock 7 Mortimer Road, Cardiff, CF11 9JZ'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- Every decision — granted, refused or withdrawn (1 on record)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 5 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
7 Mortimer Road has more than quadrupled in price since its earliest registered sale in 1997.
£436,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.8% per year over 20 years.
£325,000
Growth on file: 7.8% per year over 20 years.
Sales timeline
28 March 2018Most recent
£325,000
+22.6%over 3 years28 August 2014
£265,000
+65.6%over 5 years5 April 2009
£160,000
+128.7%over 11 years21 November 1997
£69,950
Median price across the last 5 sales in CF11 9JZ: £265,000 (2025–2018).
Nearby sales in CF11 9JZ
Versus other Mortimer Road homes
7 Mortimer Road outperforms the street on floor area by a wide margin.
Price per m²
£2,902
Street avg £2,550
Floor Area
112 m²
Street avg 87 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
3.7 t/year
Street avg 3.7 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
Halfway Hotel — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







