21B Kinsbourne Close, Harpenden, AL5 3PB is a leasehold flat built in 2012 onwards. The property offers approximately 775 square feet of living space and is situated on the 1st floor. In this location, apartments of similar size usually have two bedrooms.

The estimated current market value of the property is £408,316 , which equates to approximately £527 per square foot. It was last sold on 20 Sep 2013 for £280,000. Since then, the value has increased by £128,316, representing a 45.8% increase, or approximately 3.7% per year.

The current estimated value of £408,316 is:

  • 50.4% lower than the average property price on Kinsbourne Close
  • 49.7% lower than the average in the AL5 3PB postcode area
  • and 56.3% lower than the average price for Harpenden as a whole

At the most recent EPC inspection on 29 April 2025, the property was recorded as owner-occupied.

View sold house prices in AL5 3PB

Building approximate location

About Property

Type
Semi-Detached Maisonette
Built
2012 onwards
Interior Size
775 sq ft
Tenure
Leasehold
Floor level
1st floor
Price (estimate)
£408,316
Price Per sq ft (estimate)
£527
Bedroom Count (estimate)
2 bedrooms

EPC Summary

21B Kinsbourne Close, Harpenden, St Albans, Hertfordshire, AL5 3PB has an Energy Performance Certificate (EPC) rating of B, based on the latest assessment carried out on 29 Apr 2025.

This property uses a gas boiler with underfloor heating as its main heating source. It is connected to mains gas. Hot water is provided from main heating system. The windows are fully double glazed.

The previous EPC assessment was conducted on 9 Aug 2011. The rating of B is unchanged, though the energy efficiency score decreased by 8%.

Since the previous assessment, several changes were observed:

  • The heating system changed from boiler and radiators, mains gas to boiler and underfloor heating, mains gas, with no change in energy efficiency (good).
  • The roof construction or insulation changed from average thermal transmittance 0.13 w/m?k to pitched, insulated (assumed), changing energy efficiency from very good to good.
  • The wall construction or insulation changed from average thermal transmittance 0.25 w/m?k to timber frame, as built, insulated (assumed), with no change in energy efficiency (very good).
  • The windows were upgraded from high performance glazing to fully double glazed.
  • The lighting was changed from low energy lighting in 75% of fixed outlets to low energy lighting in all fixed outlets, with no change in efficiency (very good).
Heating Type
Boiler and underfloor heating, mains gas
Good
Hot Water
From main system
Good
Roof
Pitched, insulated (assumed)
Good
Walls
Timber frame, as built, insulated (assumed)
Very Good
Windows
Fully double glazed
Good
Lighting
Low energy lighting in all fixed outlets
Very Good

Compared to AL5 3PB

23 rd / 23
Price Rank
50% lower than average
14 th / 16
Size Rank
36% smaller than average
14 th / 16
Price Per Sq FT Rank
22% lower than average

Compared to other properties in AL5 3PB , this maisonette's estimated value ranks 23th out of 23. Based on price per square foot, it ranks 14th out of 16 properties. This indicates a lower price per square foot than most, suggesting good value for the space offered. In terms of size, this home ranks 14th out of 16 properties in its postcode area.

Sale History

Today
£408,316
streetscan.co.uk estimate
+46 %
20 Sep 2013
£280,000
Leasehold

Area Insights

Similar Properties Sold Nearby

21A Kinsbourne Close, Harpenden, AL5 3PB
rooms: 3
size: 764 sq ft
sale price: £415,000
sale date: 24 Jul 2020

Data Sources

The property at 21B Kinsbourne Close, Harpenden, St Albans, Hertfordshire, AL5 3PB appears once in the Land Registry records, with the transaction recorded on 20 Sep 2013. It also has two Energy Performance Certificates (EPC) entries, the earliest dating back to 29 Apr 2025. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.
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