Property data
Sale history
£465,000 on Aug 2017
Floor plan

Archived estate agent floor plan for 21, Alva Way.

Floorplan 21
View floorplan
Internal area
74 square metres (797 square feet) according to latest EPC inspection
Price per internal area

This property sold for £6,283 per square metre (£584 per square foot) in Aug 2017. Indexed forward to today's value, this is roughly £7,029 per square metre (£653 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Aug 2017 £465,000 £6,284 £520,114 £7,029

Calculated using the latest EPC internal area of 74 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 £520,114. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Watford are now selling for between £4,790 and £6,550 per square metre (£445 and £608 per square foot). Based on an internal area of 74 m², this implies a valuation between £354,000 and £485,000. 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
Detached
Council tax band
E
Plot size
616 square metres (6,631 square feet) - map showing freehold boundary lines
Archived listings
History:
Archived sales listing for 21 Alva Way. Advertised on multiple portals. It was added on 03/05/2017. It last appeared Nov 2017.
Photos:

There are 1 archived estate agent listing photos for 21 Alva Way.

Photos for 21 Alva Way
View photos
Advertiser remarks:
  • 2 bedrooms
  • 1 bathrooms
Planning applications
Planning ref:
November 2019 19/1710/RSP
Type:
Amendments or alterations arising from an existing or previous application
Status:
Application approved
Address:
21 Alva Way Carpenders Park
Description:
Retrospective: Demolition of existing dwelling and construction of replacement bungalow with accomodation within the roofspace served by front and rear dormer; construction of outbuilding for use as a residential annexe and alterations to driveway.

Planning ref:
June 2019 19/0843/NMA
Type:
Amendments or alterations arising from an existing or previous application
Status:
Application refused
Address:
21 Alva Way Carpenders Park
Description:
Non-Material Amendment to planning permission 18/0589/FUL: Increase in height of eaves on single storey rear extension

Planning ref:
December 2018 18/2398/NMA
Type:
Amendments or alterations arising from an existing or previous application
Status:
Application approved
Address:
21 Alva Way Carpenders Park
Description:
Non-material amendement to planning permission 18/0589/FUL: Alterations to extent of demolition and amendment to construction method statement

Planning ref:
September 2018 18/1505/DIS
Type:
Discharge of conditions imposed on an existing application
Status:
Application approved
Address:
21 Alva Way Carpenders Park Watford Hertfordshire
Description:
Discharge of Condition 8 (Construction Method Statement) pursuant to planning permission 18/0589/FUL

Planning ref:
December 2017 17/2318/PDE
Type:
Outline application - proposal prior to a full application, including assessments and scoping opinions.
Status:
Application approved
Address:
21 Alva Way Carpenders Park Watford Hertfordshire
Description:
Prior Approval: Proposed single-storey rear extension (depth 6 metres; maximum height 3.4 metres and eaves height 2.4 metres)

Planning ref:
October 2017 17/2119/PDE
Type:
Outline application - proposal prior to a full application, including assessments and scoping opinions.
Status:
Application withdrawn before a decision was taken
Address:
21 Alva Way Carpenders Park Watford Hertfordshire
Description:
Prior Approval: Single storey rear extension (depth 7 metres, maximum height 4 metres and eaves height 3 metres)

Planning ref:
October 2017 17/2144/PDE
Type:
Outline application - proposal prior to a full application, including assessments and scoping opinions.
Status:
Application withdrawn before a decision was taken
Address:
21 Alva Way Carpenders Park Watford Hertfordshire
Description:
Prior Approval: Single storey rear extension (depth 6 metres, maximum height 4 metres and eaves height 3 metres)

Planning ref:
September 2017 17/1784/PDE
Type:
Outline application - proposal prior to a full application, including assessments and scoping opinions.
Status:
Application refused
Address:
21 Alva Way Carpenders Park Watford Hertfordshire
Description:
Prior Approval: Single storey rear extension (depth 8 metres, maximum height 4 metres and eaves height 3 metres)
EPC Inspections
Summary:
05 August 2025 - energy performance certificate grade C
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
marketed sale
Tenure:
Owner-occupied
Property type:
Detached House , has 7 habitable rooms. Estimated year built 1930 to 1949
Area:
217 sqm (2,336 square foot) total internal area
Comments:
Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, Unknown loft insulation. Heating: Boiler with radiators and underfloor, mains gas.

Summary:
28 April 2017 - energy performance certificate grade G
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
marketed sale
Tenure:
Owner-occupied
Property type:
Detached Bungalow , has 3 habitable rooms. Estimated year built 1930 to 1949
Area:
74 sqm (797 square foot) total internal area
Comments:
Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, 250 mm loft insulation. Heating: Room heaters, electric.
Frequently asked questions

21 Alva Way 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 £520,114.
  • Based on an internal area of 74 m² and recent prices in Watford, this implies a lower and upper quartile range from £354,000 to £485,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 21 Alva Way last sold for £465,000 in August 2017.

HouseMetric shows 21 Alva Way as 74 m² (797 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 C, from an inspection dated 05 August 2025. EPC information comes from the public Energy Performance Certificate data for England and Wales.

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

21 Alva Way is in postcode WD19 5EE, in Watford. You can also view HouseMetric's sold-price page for Alva Way, WD19 5EE or analysis of the Watford 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.