Property data
Sale history
Date Paid price Annual growth After inflation
Sep 2025 £122,000 5.9% 1.3%
Apr 2022 £100,000 4.3% 1.9%
Oct 2014 £73,000 -1.9% -4.2%
Sep 2006 £84,950 29.3% 26.9%
Jul 2000 £17,500 -0.6% -2.4%
Mar 1996 £18,000 98.9% 94.8%
May 1995 £10,000 na na
Floor plan

Archived estate agent floor plan for 21, Gwent Street.

Floorplan 21
View floorplan
Internal area
63 square metres (678 square feet) according to latest EPC inspection
Price per internal area

This property sold for £1,936 per square metre (£180 per square foot) in Sep 2025. Indexed forward to today's value, this is roughly £1,945 per square metre (£181 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Sep 2025 £122,000 £1,937 £122,558 £1,945
Apr 2022 £100,000 £1,587 £110,022 £1,746
Oct 2014 £73,000 £1,159 £123,006 £1,952
Sep 2006 £84,950 £1,348 £136,647 £2,169
Jul 2000 £17,500 £278 £76,966 £1,222
Mar 1996 £18,000 £286 £89,258 £1,417
May 1995 £10,000 £159 £48,767 £774

Calculated using the latest EPC internal area of 63 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 £122,558. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Pontnewynydd are now selling for between £1,480 and £2,130 per square metre (£137 and £197 per square foot). Based on an internal area of 63 m², this implies a valuation between £93,000 and £134,000. 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
1
Type
Terrace
Council tax band
A
Plot size
55 square metres (592 square feet) - map showing freehold boundary lines
Archived listings
History:
Archived sales listing for 21 Gwent Street. Advertised on multiple portals. It was added on 01/10/2021. It last appeared Apr 2022.
Photos:

There are 15 archived estate agent listing photos for 21 Gwent Street.

Photos for 21 Gwent Street
View photos
Advertiser remarks:
  • 1 bedrooms
  • 1 bathrooms
EPC Inspections
Summary:
06 June 2025 - 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 2 habitable rooms. Estimated year built 1900 to 1929
Area:
63 sqm (678 square foot) total internal area
Comments:
Walls: Cavity wall, as built, insulated (assumed). Roof: Pitched, no insulation (assumed). Heating: Boiler and radiators, mains gas.

Summary:
23 May 2014 - 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 4 habitable rooms. Estimated year built 1900 to 1929
Area:
62 sqm (667 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 Gwent 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 £122,558.
  • Based on an internal area of 63 m² and recent prices in Pontnewynydd, this implies a lower and upper quartile range from £93,000 to £134,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 21 Gwent Street last sold for £122,000 in September 2025.

HouseMetric shows 21 Gwent Street as 63 m² (678 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 1 bedroom. 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 06 June 2025. EPC information comes from the public Energy Performance Certificate data for England and Wales.

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

21 Gwent Street is in postcode NP4 6EX, in Pontnewynydd. You can also view HouseMetric's sold-price page for Gwent Street, NP4 6EX or analysis of the Pontnewynydd 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.