20, The Commons, AL7 4RP

20 The Commons is a 97 m² / 1,044 sq ft semi-detached home in Welwyn Garden City. It sold for £325,000 in April 2015. Indexed forward to today's value, that sale is roughly £455k. Recent local prices imply a broad valuation context of £417k to £531k based on its internal area. The Land Registry and EPC data was last updated 2 July 2026.

Property data
Sale history
Date Paid price Annual growth After inflation
Apr 2015 £325,000 5.0% 3.4%
Mar 2012 £280,000 na na
Internal area
97 square metres (1,044 square feet) according to latest EPC inspection
Price per internal area

This property sold for £3,350 per square metre (£311 per square foot) in Apr 2015. Indexed forward to today's value, this is roughly £4,691 per square metre (£436 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Apr 2015 £325,000 £3,351 £455,070 £4,691
Mar 2012 £280,000 £2,887 £526,920 £5,432

Calculated using the latest EPC internal area of 97 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 £455,070. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Welwyn Garden City are now selling for between £4,300 and £5,470 per square metre (£399 and £508 per square foot). Based on an internal area of 97 m², this implies a valuation between £417,000 and £531,000. 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
4
Type
Semi-detached
Council tax band
D
Plot size
254 square metres (2,734 square feet) - map showing freehold boundary lines
Archived listings
History:
Archived rental listing for 20 The Commons. Advertised on multiple portals. It was . It last appeared Jun 2008.
Photos:

There are 1 archived estate agent listing photos for 20 The Commons.

Photos for 20 The Commons
View photos
Advertiser remarks:
  • 4 bedrooms
EPC Inspections
Summary:
30 August 2022 - energy performance certificate grade C
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
Rental
Tenure:
Owner-occupied
Property type:
Semi-Detached House , has 5 habitable rooms. Estimated year built 1950 to 1966
Area:
100 sqm (1,076 square foot) total internal area
Comments:
Walls: Cavity wall, filled cavity. Roof: Pitched, 400+ mm loft insulation. Heating: Boiler and radiators, mains gas.
Summary:
25 August 2011 - energy performance certificate grade D
Reason for EPC:
None
Tenure:
Owner-occupied
Property type:
None , has 6 habitable rooms. Estimated year built 1950 to 1966
Area:
97 sqm (1,044 square foot) total internal area
Comments:
Frequently asked questions

20 The Commons 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 £455,070.
  • Based on an internal area of 97 m² and recent prices in Welwyn Garden City, this implies a lower and upper quartile range from £417,000 to £531,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 20 The Commons last sold for £325,000 in April 2015.

HouseMetric shows 20 The Commons as 97 m² (1,044 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 4 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 C, from an inspection dated 30 August 2022. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 20 The Commons was in council tax band D. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

20 The Commons is in postcode AL7 4RP, in Welwyn Garden City. You can also view HouseMetric's sold-price page for The Commons, AL7 4RP or analysis of the Welwyn Garden City 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.