17, Lon Isa, CF14 6ED

17 Lon Isa is a 96 m² / 1,033 sq ft semi-detached home in Cardiff. It sold for £540,000 in December 2023. Indexed forward to today's value, that sale is roughly £539k. Recent local prices imply a broad valuation context of £321k to £448k based on its internal area. The Land Registry and EPC data was last updated 4 August 2026.

Property data
Sale history
Date Paid price Annual growth After inflation
Dec 2023 £540,000 6.6% 4.1%
Apr 1995 £87,500 na na
Floor plan

Archived estate agent floor plan for 17, Lon Isa.

Floorplan 17
View floorplan
Internal area
96 square metres (1,033 square feet) according to latest EPC inspection
Price per internal area

This property sold for £5,625 per square metre (£523 per square foot) in Dec 2023. Indexed forward to today's value, this is roughly £5,617 per square metre (£522 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Dec 2023 £540,000 £5,625 £539,266 £5,617
Apr 1995 £87,500 £911 £490,026 £5,104

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 £539,266. 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 £3,340 and £4,670 per square metre (£310 and £433 per square foot). Based on an internal area of 96 m², this implies a valuation between £321,000 and £448,000. 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
266 square metres (2,863 square feet) - map showing freehold boundary lines
Archived listings
History:
Archived sales listing for 17 Lon Isa. Advertised on multiple portals. It was added on 26/06/2023. It last appeared Dec 2023.
Photos:

There are 22 archived estate agent listing photos for 17 Lon Isa.

Photos for 17 Lon Isa
View photos
Advertiser remarks:
  • 3 bedrooms
  • 1 bathrooms
Planning applications
Planning ref:
June 2024 24/01328/WTCA
Type:
Tree and hedge works
Status:
Application approved
Address:
17 Lon Isa Rhiwbina Cardiff
Description:
T1 Silver Birch located in front garden - crown lift to 4 metres and to reduce 2 branches growing towards the house by 1 metre
Planning ref:
August 2008 07/01660/W
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved
Address:
17 Lon Isa, Rhiwbina, Cardiff
Description:
REPLACE X 2 WINDOWS TO FRONT ELEVATION, X 1 WINDOW TO REAR ELEVATION. REPLACE FRONT DOOR
Planning ref:
August 2007 07/01659/W
Type:
Full and householder planning application
Status:
Application approved
Address:
17 Lon Isa, Rhiwbina, Cardiff
Description:
REPLACE X 2 WINDOWS TO FRONT ELEVATION, X 1 WINDOW TO REAR ELEVATION. REPLACE FRONT DOOR
Planning ref:
May 2002 01/02591/N
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved
Address:
17 Lon Isa, Rhiwbina, Cardiff
Description:
CONSERVATORY TO REAR OF HOUSE
Planning ref:
April 2002 01/02592/N
Type:
Full and householder planning application
Status:
Application approved
Address:
17 Lon Isa, Rhiwbina, Cardiff
Description:
CONSERVATORY TO REAR OF HOUSE
EPC Inspections
Summary:
28 June 2023 - 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 1930 to 1949
Area:
96 sqm (1,033 square foot) total internal area
Comments:
Walls: Cavity wall, as built, no insulation (assumed). Roof: Pitched, 100 mm loft insulation. Heating: Boiler and radiators, mains gas.
Frequently asked questions

17 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 £539,266.
  • Based on an internal area of 96 m² and recent prices in Cardiff, this implies a lower and upper quartile range from £321,000 to £448,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 17 Lon Isa last sold for £540,000 in December 2023.

HouseMetric shows 17 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 28 June 2023. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 17 Lon Isa was in council tax band F. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

17 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 4 August 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.