11 Mortimer Road, Cardiff, CF11 9JZ
About 11 Mortimer Road
11 Mortimer Road is a two-bedroom mid-terrace house in Cardiff (CF11 9JZ). It has a recorded floor area of 81 m² (around 872 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (June 2021) shows an E (score 52), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since July 2010. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Poor and lighting went from Good to Very Good. The recommended improvements would lift it to C (score 74), a 2-band jump.
It hasn't traded since December 2006, a hold of 19 years that's notably long for the area. Across 1998–2006, sale prices on this property compounded at 13.7% per year. Today's modelled estimate of £338,000 sits 61% above the 2006 sale of £210,000. On a £-per-square-foot basis, the last sale (£241/sq ft) was about 36.6% above the typical sold price in the postcode. It lags the bulk of the postcode on energy efficiency (less efficient than 87% of similar EPCs).
What this property has
Inside
- Bedrooms2
- Bathrooms1
Outside
- Private gardenYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
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 £955 · Includes VAT
Planning history
11 Mortimer Road has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Sale price has grown by over 3x since 1998.
£338,000
Modelled from EPC, postcode comparables and a sale-price growth of 13.7% per year over 9 years.
£210,000
Growth on file: 13.7% per year over 9 years.
Sales timeline
15 December 2006Most recent
£210,000
+200.2%over 8 years20 May 1998
£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
On epc rating, 11 Mortimer Road runs well behind the street norm.
Price per m²
£2,593
Street avg £2,575
Floor Area
81 m²
Street avg 88 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
4.8 t/year
Street avg 3.7 t/year
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The neighbourhood at a glance
Crime
9/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.







