21, Robbery Bottom Lane, AL6 0UL

21 Robbery Bottom Lane is a 72 m² / 775 sq ft detached home in Welwyn. It sold for £313,500 in December 2012. Indexed forward to today's value, that sale is roughly £461k. Recent local prices imply a broad valuation context of £347k to £448k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.

Property data
Sale history
£313,500 on Dec 2012
Internal area
72 square metres (775 square feet) according to latest EPC inspection
Price per internal area

This property sold for £4,354 per square metre (£405 per square foot) in Dec 2012. Indexed forward to today's value, this is roughly £6,405 per square metre (£595 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Dec 2012 £313,500 £4,354 £461,135 £6,405

Calculated using the latest EPC internal area of 72 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 £461,135. 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 are now selling for between £4,820 and £6,220 per square metre (£447 and £577 per square foot). Based on an internal area of 72 m², this implies a valuation between £347,000 and £448,000. 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
Detached
Council tax band
F
Plot size
537 square metres (5,780 square feet) - map showing freehold boundary lines
Planning applications
Planning ref:
July 2013 N6/2013/0786/FP
Type:
Full and householder planning application
Status:
Application approved
Address:
21 Robbery Bottom Lane Welwy
Description:
Extending roof of single storey extension to apex shape with no flat roof
EPC Inspections
Summary:
27 July 2011 - energy performance certificate grade E
Reason for EPC:
None
Tenure:
Owner-occupied
Property type:
None , has 3 habitable rooms. Estimated year built 1950 to 1966
Area:
72 sqm (775 square foot) total internal area
Comments:
Frequently asked questions

21 Robbery Bottom Lane 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 £461,135.
  • Based on an internal area of 72 m² and recent prices in Welwyn, this implies a lower and upper quartile range from £347,000 to £448,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 21 Robbery Bottom Lane last sold for £313,500 in December 2012.

HouseMetric shows 21 Robbery Bottom Lane as 72 m² (775 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 E, from an inspection dated 27 July 2011. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 21 Robbery Bottom Lane was in council tax band F. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

21 Robbery Bottom Lane is in postcode AL6 0UL, in Welwyn. You can also view HouseMetric's sold-price page for Robbery Bottom Lane, AL6 0UL or analysis of the Welwyn 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.