12, Lon Isa, CF14 6ED

12 Lon Isa is a 96 m² / 1,033 sq ft semi-detached home in Cardiff. It sold for £325,000 in August 2019. Indexed forward to today's value, that sale is roughly £422k. Recent local prices imply a broad valuation context of £324k to £452k based on its internal area. The Land Registry and EPC data was last updated 22 September 2026.

Property data
Sale history
£325,000 on Aug 2019
Floor plan

Archived estate agent floor plan for 12, Lon Isa.

Floorplan 12
View floorplan
Internal area
96 square metres (1,033 square feet) according to latest EPC inspection
Price per internal area

This property sold for £3,385 per square metre (£314 per square foot) in Aug 2019. Indexed forward to today's value, this is roughly £4,391 per square metre (£408 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Aug 2019 £325,000 £3,385 £421,559 £4,391

Calculated using the latest EPC internal area of 96 m². Earlier sale dates may not have had the same measured area available.

Valuation
The most recent sale price indexed forward to today's value is £421,559. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Cardiff are now selling for between £3,370 and £4,710 per square metre (£313 and £437 per square foot). Based on an internal area of 96 m², this implies a valuation between £324,000 and £452,000. Treat this as context only. For a valuation using hand-picked comparable sales, use the Advanced search tool — create a shortlist of similar condition homes, then export a valuation report.
Bedrooms
3
Type
Semi-detached
Council tax band
F
Plot size
224 square metres (2,411 square feet) - map showing freehold boundary lines
Archived listings
History:
Archived sales listing for 12 Lon Isa. Advertised on multiple portals. It was added on 13/05/2019. It last appeared Aug 2019.
Photos:

There are 20 archived estate agent listing photos for 12 Lon Isa.

Photos for 12 Lon Isa
View photos
Advertiser remarks:
  • 3 bedrooms
  • 1 bathrooms
Planning applications
Planning ref:
October 2024 24/02163/DOC
Type:
Discharge of conditions imposed on an existing application
Status:
Application approved with conditions
Address:
12 Lon Isa Rhiwbina Cardiff
Description:
Discharge of Condition 9 (External Finishing Materials) of 23/02749/HSE.
Planning ref:
October 2024 24/02164/DOC
Type:
Discharge of conditions imposed on an existing application
Status:
Application approved with conditions
Address:
12 Lon Isa Rhiwbina Cardiff
Description:
Discharge of Condition 9 (External Finishing Materials) of 23/02750/LBC.
Planning ref:
March 2024 23/02750/LBC
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved
Address:
12 Lon Isa Rhiwbina Cardiff
Description:
Single-storey lean-to rear extension. New side window.
Planning ref:
March 2020 20/00056/DCH
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved
Address:
12 Lon Isa Rhiwbina Cardiff
Description:
REPLACEMENT OF EXISTING WINDOWS
Planning ref:
March 2020 20/00129/DCH
Type:
Full and householder planning application
Status:
Application approved
Address:
12 Lon Isa Rhiwbina Cardiff
Description:
REPLACEMENT OF EXISTING WINDOWS IN SOFTWOOD
Planning ref:
December 2019 19/02792/DCH
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved
Address:
12 Lon Isa Rhiwbina Cardiff
Description:
PROPOSED INTERNAL WALL DEMOLITION AND INSTALLATION OF BOILER FLUE ON THE SIDE OF THE PROPERTY
EPC Inspections
Summary:
29 May 2019 - energy performance certificate grade D
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
marketed sale
Tenure:
Owner-occupied
Property type:
Semi-Detached House , has 5 habitable rooms. Estimated year built 1900 to 1929
Area:
96 sqm (1,033 square foot) total internal area
Comments:
Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, 100 mm loft insulation. Heating: Electric storage heaters.
Frequently asked questions

12 Lon Isa is worth whatever price a willing buyer and seller agree upon. However, the following can provide useful context.

  • HouseMetric estimates the most recent sale price indexed forward to today's value is £421,559.
  • Based on an internal area of 96 m² and recent prices in Cardiff, this implies a lower and upper quartile range from £324,000 to £452,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 12 Lon Isa last sold for £325,000 in August 2019.

HouseMetric shows 12 Lon Isa as 96 m² (1,033 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 3 bedrooms. Bedroom numbers can come from a previous estate agency listing, an EPC record, or an estimate based on the size of the property.

The latest EPC rating shown by HouseMetric is D, from an inspection dated 29 May 2019. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 12 Lon Isa was in council tax band F. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

12 Lon Isa is in postcode CF14 6ED, in Cardiff. You can also view HouseMetric's sold-price page for Lon Isa, CF14 6ED or analysis of the Cardiff property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 22 September 2026. Figures such as indexed values and local valuation ranges are calculated estimates for context, while official records can change as public datasets are updated.

For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.