13, Castle Street, SA3 4BH

13 Castle Street is a 91 m² / 980 sq ft terraced home in Mumbles. It sold for £112,500 in December 2017. Indexed forward to today's value, that sale is roughly £148k. Recent local prices imply a broad valuation context of £287k to £384k based on its internal area. The Land Registry and EPC data was last updated 2 July 2026.

Property data
Sale history
£112,500 on Dec 2017
Internal area
91 square metres (980 square feet) according to latest EPC inspection
Price per internal area

This property sold for £1,236 per square metre (£115 per square foot) in Dec 2017. Indexed forward to today's value, this is roughly £1,625 per square metre (£151 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Dec 2017 £112,500 £1,236 £147,903 £1,625

Calculated using the latest EPC internal area of 91 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 £147,903. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Mumbles are now selling for between £3,150 and £4,220 per square metre (£292 and £392 per square foot). Based on an internal area of 91 m², this implies a valuation between £287,000 and £384,000. 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
2
Type
Terrace
Council tax band
D
Plot size
231 square metres (2,486 square feet) - map showing freehold boundary lines
Archived listings
History:
Archived rental listing for 13 Castle Street. Advertised on multiple portals. It was added on 10/08/2015. It last appeared Aug 2015.
Photos:

There are 6 archived estate agent listing photos for 13 Castle Street.

Photos for 13 Castle Street
View photos
Advertiser remarks:
  • 2 bedrooms
Planning applications
Planning ref:
October 2024 2024/1958/FUL
Type:
Full and householder planning application
Status:
Decision has yet to be made
Address:
13 Castle Street Mumbles Swansea
Description:
Replacement roof of existing ground floor extension to include a skylight, replacement first floor extension rear fenestration alterations and extend the existing detached rear garage replace the existing roof with a pitched roof.
EPC Inspections
Summary:
30 September 2014 - energy performance certificate grade E
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
Rental
Tenure:
Private rental
Property type:
Mid-Terrace House , has 4 habitable rooms. Estimated year built before 1900
Area:
91 sqm (980 square foot) total internal area
Comments:
Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, no insulation (assumed). Heating: Boiler and radiators, mains gas.
Frequently asked questions

13 Castle Street 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 £147,903.
  • Based on an internal area of 91 m² and recent prices in Mumbles, this implies a lower and upper quartile range from £287,000 to £384,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 13 Castle Street last sold for £112,500 in December 2017.

HouseMetric shows 13 Castle Street as 91 m² (980 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 2 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 E, from an inspection dated 30 September 2014. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 13 Castle Street was in council tax band D. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

13 Castle Street is in postcode SA3 4BH, in Mumbles. You can also view HouseMetric's sold-price page for Castle Street, SA3 4BH or analysis of the Mumbles property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 2 July 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.