Triangle Cottage, Back Lane, WD25 8EF
Triangle Cottage Back Lane is a 157 m² / 1,690 sq ft detached home in Aldenham. It sold for £1,370,000 in July 2017. Indexed forward to today's value, that sale is roughly £1,532k. Recent local prices imply a broad valuation context of £859k to £1,159k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.
- Sale history
-
£1,370,000 on Jul 2017
- Floor plan
-
Archived estate agent floor plan for Triangle Cottage, Back Lane.
- Internal area
- 157 square metres (1,690 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £8,726 per square metre (£811 per square foot) in Jul 2017. Indexed forward to today's value, this is roughly £9,760 per square metre (£907 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Jul 2017 £1,370,000 £8,726 £1,532,380 £9,760 Calculated using the latest EPC internal area of 157 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 £1,532,380. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Aldenham are now selling for between £5,470 and £7,380 per square metre (£508 and £685 per square foot). Based on an internal area of 157 m², this implies a valuation between £859,000 and £1,159,000. 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
- 5
- Type
- Detached
- Council tax band
- G
- Plot size
- 599 square metres (6,448 square feet) - map showing freehold boundary lines
- Planning ref:
- April 2021 21/0677/MA
- Type:
- Amendments or alterations arising from an existing or previous application
- Status:
- Application approved
- Address:
- Triangle Cottage Back Lane Letchmore Heath Watford Hertfordshire
- Description:
- Application for a non-material amendment to allow for alterations to glazing and fenestration and insertion of additional roof light following the grant of planning permission ref 20/2051/HSE
- Planning ref:
- February 2021 20/2051/HSE
- Type:
- Full and householder planning application ; this application involves multiple dwellings
- Status:
- Application approved
- Address:
- Triangle Cottage Back Lane Letchmore Heath Watford Hertfordshire
- Description:
- Construction of a single storey orangery to rear elevation.
- Planning ref:
- January 2018 17/2287/DOC
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application approved with conditions
- Address:
- Triangle Cottage Back Lane Letchmore Heath Watford Hertfordshire
- Description:
- Application for approval of details reserved by condition 1 (landscaping) of planning permission reference 17/1683/HSE
- Planning ref:
- October 2017 17/1683/HSE
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- Triangle Cottage Back Lane Letchmore Heath Watford Hertfordshire
- Description:
- Construction of a single bay oak framed detached garage.
- Summary:
- 18 November 2025 - 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 8 habitable rooms. Estimated year built before 1900
- Area:
- 185 sqm (1,991 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, 175 mm loft insulation. Heating: Boiler and radiators, mains gas.
- Summary:
- 07 November 2014 - energy performance certificate grade E
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- marketed sale
- Tenure:
- Owner-occupied
- Property type:
- Detached House , has 8 habitable rooms. Estimated year built before 1900
- Area:
- 157 sqm (1,690 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, 100 mm loft insulation. Heating: Boiler and radiators, mains gas.
- Summary:
- 09 December 2010 - energy performance certificate grade E
- Reason for EPC:
- None
- Tenure:
- Owner-occupied
- Property type:
- None , has 6 habitable rooms. Estimated year built before 1900
- Area:
- 151 sqm (1,625 square foot) total internal area
- Comments:
Triangle Cottage Back 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 £1,532,380.
- Based on an internal area of 157 m² and recent prices in Aldenham, this implies a lower and upper quartile range from £859,000 to £1,159,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.