Property data
Sale history
Date Paid price Annual growth After inflation
Dec 2025 £1,000,000 4.1% 1.2%
Feb 2005 New build New £435,000 na na
Floor plan

Archived estate agent floor plan for 11, Rosemary Drive.

Floorplan 11
View floorplan
Internal area
177 square metres (1,905 square feet) according to latest EPC inspection
Price per internal area

This property sold for £5,649 per square metre (£525 per square foot) in Dec 2025. Indexed forward to today's value, this is roughly £5,592 per square metre (£520 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Dec 2025 £1,000,000 £5,650 £989,832 £5,592
Feb 2005 £435,000 £2,458 £882,846 £4,988

Calculated using the latest EPC internal area of 177 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 £989,832. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in London Colney are now selling for between £4,510 and £5,870 per square metre (£418 and £545 per square foot). Based on an internal area of 177 m², this implies a valuation between £798,000 and £1,039,000. 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
274 square metres (2,949 square feet) - map showing freehold boundary lines
Archived listings
History:
Archived sales listing for 11 Rosemary Drive. Advertised on multiple portals. It was reduced on 19/03/2016. It last appeared Apr 2016.
Photos:

There are 19 archived estate agent listing photos for 11 Rosemary Drive.

Photos for 11 Rosemary Drive
View photos
Advertiser remarks:
  • 4 bedrooms
Planning applications
Planning ref:
September 2019 5/2019/1774
Type:
Full and householder planning application
Status:
Application approved with conditions
Address:
11 Rosemary Drive London Colney Hertfordshir
Description:
Variation of Condition 2 (approved plans) to change the material of the bifolding door of planning permission 5/2017/2939 dated 20/12/2017 for Loft conversion, partial garage conversion, extension to driveway, alterations to openings and installation of t

Planning ref:
December 2017 5/2017/2939
Type:
Full and householder planning application
Status:
Application approved with conditions
Address:
11 Rosemary Drive London Colney Hertfordshir
Description:
Loft conversion, partial garage conversion, extension to driveway, alterations to openings and installation of three windows
EPC Inspections
Summary:
06 June 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 2012 to onwards
Area:
177 sqm (1,905 square foot) total internal area
Comments:
Walls: Cavity wall, as built, insulated (assumed). Roof: Pitched, insulated (assumed). Heating: Boiler and radiators, mains gas.

Summary:
20 January 2016 - energy performance certificate grade D
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
marketed sale
Tenure:
Owner-occupied
Property type:
Detached House , has 6 habitable rooms. Estimated year built 1996 to 2002
Area:
124 sqm (1,335 square foot) total internal area
Comments:
Walls: Cavity wall, as built, insulated (assumed). Roof: Pitched, 270 mm loft insulation. Heating: Boiler and radiators, mains gas.

Summary:
25 January 2013 - 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 6 habitable rooms. Estimated year built 2003 to 2006
Area:
111 sqm (1,195 square foot) total internal area
Comments:
Walls: Cavity wall, as built, insulated (assumed). Roof: Pitched, 250 mm loft insulation. Heating: Boiler and radiators, mains gas.
Frequently asked questions

11 Rosemary Drive 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 £989,832.
  • Based on an internal area of 177 m² and recent prices in London Colney, this implies a lower and upper quartile range from £798,000 to £1,039,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 11 Rosemary Drive last sold for £1,000,000 in December 2025.

HouseMetric shows 11 Rosemary Drive as 177 m² (1,905 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 06 June 2025. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 11 Rosemary Drive was in council tax band F. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

11 Rosemary Drive is in postcode AL2 1UD, in London Colney. You can also view HouseMetric's sold-price page for Rosemary Drive, AL2 1UD or analysis of the London Colney 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.