Castell Du, SA39 9BX

Castell Du is a 116 m² / 1,249 sq ft detached home in Llanllwni. It sold for £235,750 in August 2013. Indexed forward to today's value, that sale is roughly £380k. Recent local prices imply a broad valuation context of £182k to £307k based on its internal area. The Land Registry and EPC data was last updated 4 August 2026.

Property data
Sale history
£235,750 on Aug 2013
Internal area
116 square metres (1,249 square feet) according to latest EPC inspection
Price per internal area

This property sold for £2,032 per square metre (£189 per square foot) in Aug 2013. Indexed forward to today's value, this is roughly £3,276 per square metre (£304 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Aug 2013 £235,750 £2,032 £380,061 £3,276

Calculated using the latest EPC internal area of 116 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 £380,061. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Llanllwni are now selling for between £1,570 and £2,650 per square metre (£145 and £246 per square foot). Based on an internal area of 116 m², this implies a valuation between £182,000 and £307,000. 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
Detached
Council tax band
E
Archived listings
History:
Archived rental listing for Castell Du . Advertised on multiple portals. It was . It last appeared Nov 2008.
Photos:

There are 4 archived estate agent listing photos for Castell Du .

Photos for Castell Du
View photos
Advertiser remarks:
  • 4 bedrooms
Planning applications
Planning ref:
October 2010 W/23786
Type:
Full and householder planning application
Status:
Application withdrawn before a decision was taken
Address:
CASTELL DU, PENCADER, CARMARTHENSHIRE,
Description:
AGRICULTURAL BUILDING
Planning ref:
March 2008 W/13410
Type:
Full and householder planning application
Status:
Application approved
Address:
CASTELL DU, DOLGRAN, PENCADER, CARMS,
Description:
HOUSE AND GARAGE
Planning ref:
May 2006 W/12570
Type:
Full and householder planning application
Status:
Application refused
Address:
CASTELL DU, DOLGRAN, PENCADER, CARMS,
Description:
1 NEW RESIDENTIAL DWELLING - FARMHOUSE
Planning ref:
February 2006 W/11954
Type:
Full and householder planning application
Status:
Application approved
Address:
CASTELL DU, DOLGRAN, PENCADER, CARMS,
Description:
COW SHED AND HAY STORAGE
Planning ref:
May 2005 W/09628
Type:
Full and householder planning application
Status:
Application approved
Address:
LAND AT CASTELL DU, PENCADER,
Description:
REVISED PLANS FOR A NEW ACCESS TO APPROVED PLANS FOR BARN CONVERSION INTO DWELLING
Planning ref:
October 2004 W/07861
Type:
Full and householder planning application
Status:
Application approved
Address:
OUTBUILDINGS AT CASTELL DU, PENCADER,
Description:
PROPOSED CONVERSION OF STABLE AND TY PAIR INTO TWO UNITS OF HOLIDAY ACCOMMODATION.
Planning ref:
October 2004 W/07876
Type:
Full and householder planning application
Status:
Application approved
Address:
BARN AT CASTELL DU, PENCADER,
Description:
PROPOSED CONVERSION OF BARN INTO RESIDENTIAL HOUSE DWELLING.
EPC Inspections
Summary:
08 April 2014 - energy performance certificate grade D
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
FiT application
Tenure:
Owner-occupied
Property type:
Detached House , has 4 habitable rooms. Estimated year built before 1900
Area:
111 sqm (1,195 square foot) total internal area
Comments:
Walls: Sandstone, as built, no insulation (assumed). Roof: Pitched, 200 mm loft insulation. Heating: Boiler and radiators, oil.
Summary:
05 April 2012 - energy performance certificate grade G
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
Marketed sale
Tenure:
Unknown
Property type:
Detached House , has 6 habitable rooms. Estimated year built before 1900
Area:
116 sqm (1,249 square foot) total internal area
Comments:
Walls: Granite or whinstone, as built, no insulation (assumed). Roof: Pitched, 250 mm loft insulation. Heating: Portable electric heaters assumed for most rooms.
Frequently asked questions

Castell Du 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 £380,061.
  • Based on an internal area of 116 m² and recent prices in Llanllwni, this implies a lower and upper quartile range from £182,000 to £307,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, Castell Du last sold for £235,750 in August 2013.

HouseMetric shows Castell Du as 116 m² (1,249 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 08 April 2014. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, Castell Du was in council tax band E. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

Castell Du is in postcode SA39 9BX, in Llanllwni. You can also view HouseMetric's sold-price page for SA39 9BX or analysis of the Llanllwni 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.