11 Fallows Green, Harpenden, AL5 4HD is a freehold detached property built in 2025. The property offers approximately 3,563 square feet of living space. In this location, properties of similar size usually have six bedrooms.

The estimated current market value of the property is £1,417,360 , which equates to approximately £398 per square foot. It was last sold on 26 May 2023 for £1,350,000. Since then, the value has increased by £67,360, representing a 5.0% increase, or approximately 1.6% per year.

The current estimated value of £1,417,360 is:

  • 34.1% lower than the average property price on Fallows Green
  • 35.9% lower than the average in the AL5 4HD postcode area
  • and 52.0% higher than the average price for Harpenden as a whole

At the most recent EPC inspection on 19 January 2023, the property was recorded as owner-occupied.

View sold house prices in AL5 4HD

Building approximate location

About Property

Type
Detached House
Built
2025
Interior Size
3563 sq ft
Tenure
Freehold
Price (estimate)
£1,417,360
Price Per sq ft (estimate)
£398
Bedroom Count (estimate)
6 bedrooms

EPC Summary

11 Fallows Green, Harpenden, St Albans, Hertfordshire, AL5 4HD has an Energy Performance Certificate (EPC) rating of B, based on the latest assessment carried out on 27 Jun 2025.

This property is heated by an air source heat pump and underfloor heating. Hot water is provided from main heating system. The windows are high performance glazing.

The previous EPC assessment was conducted on 19 Jan 2023, when the property was rated E. Since then, the rating has improved to B, with the energy efficiency score increasing by 107.1%.

Since the previous assessment, several changes were observed:

  • The heating system was upgraded from boiler and radiators, mains gas to air source heat pump, underfloor, electric, improving energy efficiency from good to very good.
  • The hot water system changed from from main system, no cylinder thermostat to from main system, with no change in energy efficiency (average).
  • The roof construction or insulation changed from pitched, 150 mm loft insulation to average thermal transmittance 0.1 w/m-¦k, improving energy efficiency from good to very good.
  • The wall construction or insulation changed from solid brick, as built, no insulation (assumed) to average thermal transmittance 0.16 w/m-¦k, improving energy efficiency from very poor to very good.
  • The windows were upgraded from single glazed to high performance glazing.
  • The lighting was changed from low energy lighting in all fixed outlets to excelent lighting efficiency, with no change in efficiency (very good).
Heating Type
Air source heat pump, underfloor, electric
Very Good
Hot Water
From main system
Average
Floor
Average thermal transmittance 0.11 W/m-¦K
Very Good
Roof
Average thermal transmittance 0.1 W/m-¦K
Very Good
Walls
Average thermal transmittance 0.16 W/m-¦K
Very Good
Windows
High performance glazing
Very Good
Lighting
Excelent lighting efficiency
Very Good

Compared to AL5 4HD

12 th / 12
Price Rank
36% lower than average
3 rd / 10
Size Rank
45% bigger than average
10 th / 10
Price Per Sq FT Rank
56% lower than average

Sale History

Today
£1,417,360
streetscan.co.uk estimate
+5 %
26 May 2023
£1,350,000
Freehold

Flood Risk for this Property

Flood risk from rivers and the sea
Very low flood risk
Flood risk from surface water
Very low flood risk
Surface water flood hazard
No mapped risk

* Results are based on Environment Agency flood risk mapping for the property UPRN where available. They are indicative and should not be treated as a site-specific flood survey.

Flood risk from rivers and the sea

This property has very low flood risk from rivers and the sea.

River and sea flooding includes flooding caused by overflowing rivers, estuaries, tidal waters and coastal surges.

Flood risk from surface water

This property has very low surface water flood risk.

Surface water flooding can happen when heavy rainfall overwhelms drains, roads, gardens or other hard surfaces.

Flood depth indicators

Rivers and Sea
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk
Surface Water
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk

Area Insights

Similar Properties Sold Nearby

18 Fallows Green, Harpenden, AL5 4HD
rooms: 11
size: 3800 sq ft
sale price: £2,200,000
sale date: 14 Aug 2020
12 Fallows Green, Harpenden, AL5 4HD
rooms:
size: 3929 sq ft
sale price: £1,200,000
sale date: 18 Sep 2013
13 Fallows Green, Harpenden, AL5 4HD
rooms: 10
size: 3401 sq ft
sale price: £1,800,000
sale date: 29 Oct 2010

Data Sources

The property at 11 Fallows Green, Harpenden, AL5 4HD appears once in HM Land Registry records, with the transaction recorded on 26 May 2023. It also has two Energy Performance Certificate (EPC) records, the earliest dating back to 27 Jun 2025. We use this information to estimate the property's characteristics, flood risk profile and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0 .

StreetScan.co.uk is not affiliated with, endorsed by, or associated with HM Land Registry, DESNZ, MHCLG, Defra or the Environment Agency.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure that the information provided on this website is current and accurate. However, no warranties or representations are made regarding its completeness, accuracy, suitability or reliability. Property values, flood risk assessments and other derived information are estimates based on publicly available datasets and should not be relied upon as professional, legal, surveying, environmental, financial or insurance advice. StreetScan.co.uk expressly disclaims all liability for any loss, damage, cost or expense arising directly or indirectly from the use of, or reliance upon, information provided on this website.
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