21, Lock Street, CF45 4UF

21 Lock Street is a 106 m² / 1,141 sq ft terraced home in Abercynon. It sold for £125,000 in July 2015. Indexed forward to today's value, that sale is roughly £234k. Recent local prices imply a broad valuation context of £127k to £202k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.

Property data
Sale history
Date Paid price Annual growth After inflation
Jul 2015 £125,000 8.3% 6.0%
Apr 2003 £47,000 na na
Internal area
106 square metres (1,141 square feet) according to latest EPC inspection
Price per internal area

This property sold for £1,179 per square metre (£110 per square foot) in Jul 2015. Indexed forward to today's value, this is roughly £2,210 per square metre (£205 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Jul 2015 £125,000 £1,179 £234,258 £2,210
Apr 2003 £47,000 £443 £169,252 £1,597

Calculated using the latest EPC internal area of 106 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 £234,258. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Abercynon are now selling for between £1,200 and £1,910 per square metre (£111 and £177 per square foot). Based on an internal area of 106 m², this implies a valuation between £127,000 and £202,000. 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
Terrace
Council tax band
B
Plot size
100 square metres (1,076 square feet) - map showing freehold boundary lines
Archived listings
History:
Archived sales listing for 21 Lock Street. Advertised on multiple portals. It was reduced on 13/04/2015. It last appeared Oct 2019.
Photos:

There are 41 archived estate agent listing photos (taken in March 2014) for 21 Lock Street.

Photos for 21 Lock Street
View photos
Advertiser remarks:
  • 3 bedrooms
Planning applications
Planning ref:
April 2008 08/0084/FUL
Type:
Full and householder planning application
Status:
Application approved
Address:
21 Lock Street Abercynon Mountain Ash
Description:
Bedroom extension above existing kitchen extension.
EPC Inspections
Summary:
19 May 2015 - energy performance certificate grade D
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
marketed sale
Tenure:
Owner-occupied
Property type:
Mid-Terrace House , has 6 habitable rooms. Estimated year built 1900 to 1929
Area:
106 sqm (1,141 square foot) total internal area
Comments:
Walls: Granite or whinstone, as built, no insulation (assumed). Roof: Pitched, no insulation (assumed). Heating: Boiler and radiators, mains gas.
Frequently asked questions

21 Lock 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 £234,258.
  • Based on an internal area of 106 m² and recent prices in Abercynon, this implies a lower and upper quartile range from £127,000 to £202,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 21 Lock Street last sold for £125,000 in July 2015.

HouseMetric shows 21 Lock Street as 106 m² (1,141 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 19 May 2015. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 21 Lock Street was in council tax band B. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

21 Lock Street is in postcode CF45 4UF, in Abercynon. You can also view HouseMetric's sold-price page for Lock Street, CF45 4UF or analysis of the Abercynon property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 1 June 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.