23, Coldharbour Lane, AL5 4NQ
23 Coldharbour Lane is a 62 m² / 667 sq ft semi-detached home in Harpenden. It sold for £350,000 in June 2021. Indexed forward to today's value, that sale is roughly £393k. Recent local prices imply a broad valuation context of £361k to £511k based on its internal area. The Land Registry and EPC data was last updated 4 August 2026.
- Sale history
-
Date Paid price Annual growth After inflation Jun 2021 £350,000 3.2% 1.5% Sep 2012 £265,000 na na - Floor plan
-
Archived estate agent floor plan for 23, Coldharbour Lane.
- Internal area
- 62 square metres (667 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £5,645 per square metre (£524 per square foot) in Jun 2021. Indexed forward to today's value, this is roughly £6,340 per square metre (£589 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Jun 2021 £350,000 £5,645 £393,077 £6,340 Sep 2012 £265,000 £4,274 £435,778 £7,029 Calculated using the latest EPC internal area of 62 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 £393,077. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Harpenden are now selling for between £5,820 and £8,240 per square metre (£540 and £765 per square foot). Based on an internal area of 62 m², this implies a valuation between £361,000 and £511,000. 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
- Semi-detached
- Council tax band
- D
- Plot size
- 275 square metres (2,960 square feet) - map showing freehold boundary lines
- Planning ref:
- July 2021 5/2021/1479
- Type:
- Outline application - proposal prior to a full application, including assessments and scoping opinions.
- Status:
- Application approved
- Address:
- 23 Coldharbour Lane Harpenden Hertfordshir
- Description:
- Certificate of Lawfulness (proposed) - Loft conversion with rear dormer and two roof lights to the front roof slope
- Planning ref:
- July 2021 5/2021/1490
- Type:
- Full and householder planning application
- Status:
- Application approved with conditions
- Address:
- 23 Coldharbour Lane Harpenden Hertfordshir
- Description:
- Demolition of porch, rear extension and removal of first floor cladding and construction of part single, part two storey rear extension, replacement of roof tiles to slate tiles and alterations to openings
- Summary:
- 04 April 2012 - energy performance certificate grade F
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Marketed sale
- Tenure:
- Unknown
- Property type:
- Semi-Detached House , has 3 habitable rooms. Estimated year built 1930 to 1949
- Area:
- 62 sqm (667 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, 200 mm loft insulation. Heating: Room heaters, electric.
23 Coldharbour 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 £393,077.
- Based on an internal area of 62 m² and recent prices in Harpenden, this implies a lower and upper quartile range from £361,000 to £511,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.