3 Swangleys Lane, Knebworth, SG3 6AA is a freehold detached property built between 1900-1929. The property offers approximately 1,152 square feet of living space. In this location, properties of similar size usually have four bedrooms.

The estimated current market value of the property is £570,123 , which equates to approximately £495 per square foot. It was last sold on 16 Sep 2025 for £575,000. Since then, the value has decreased by £4,877, representing a 0.8% decrease, or approximately 1.1% per year.

The current estimated value of £570,123 is:

  • 48.5% lower than the average property price on Swangleys Lane
  • 49.9% lower than the average in the SG3 6AA postcode area
  • and 4.4% higher than the average price for Knebworth as a whole

At the most recent EPC inspection on 6 September 2024, the property was recorded as owner-occupied.

View sold house prices in SG3 6AA

Building approximate location

About Property

Type
Detached Bungalow
Built
1900-1929
Interior Size
1152 sq ft
Tenure
Freehold
Price (estimate)
£570,123
Price Per sq ft (estimate)
£495
Bedroom Count (estimate)
4 bedrooms

EPC Summary

3 Swangleys Lane, Knebworth, North Hertfordshire, Hertfordshire, SG3 6AA has an Energy Performance Certificate (EPC) rating of D, based on the latest assessment carried out on 6 Sep 2024.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. Hot water is provided from the main heating system, supplemented by a solar water heating system. The windows are fully double glazed.

The previous EPC assessment was conducted on 19 Jun 2012. The rating of D remains the same, but the energy efficiency score improved by 1.8%.

Since the previous assessment, several changes were observed:

  • The roof construction or insulation changed from pitched, 300+ mm loft insulation to pitched, 150 mm loft insulation, changing energy efficiency from very good to good.
  • The wall construction or insulation changed from solid brick, as built, no insulation (assumed) to cavity wall, as built, no insulation (assumed), improving energy efficiency from very poor to poor.
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system, plus solar
Good
Roof
Pitched, 150 mm loft insulation
Good
Walls
Cavity wall, as built, no insulation (assumed)
Poor
Windows
Fully double glazed
Average
Lighting
Low energy lighting in all fixed outlets
Very Good

Compared to SG3 6AA

10 th / 10
Price Rank
50% lower than average
5 th / 5
Size Rank
43% smaller than average
4 th / 5
Price Per Sq FT Rank
13% lower than average

Sale History

Today
£570,123
streetscan.co.uk estimate
-1 %
16 Sep 2025
£575,000
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

Nearby Properties

rooms: 10
size: 2336 sq ft
sale price: £1,065,000
sale date: 1 Apr 2022
rooms: 8
size: 2390 sq ft
sale price: £1,265,000
sale date: 10 Jul 2025
rooms: 7
size: 1518 sq ft
sale price: £318,000
sale date: 21 Sep 2000
rooms:
size: 1636 sq ft
sale price: £272,500
sale date: 7 Jul 1995

Data Sources

The property at 3 Swangleys Lane, Knebworth, SG3 6AA appears once in HM Land Registry records, with the transaction recorded on 16 Sep 2025. It also has two Energy Performance Certificate (EPC) records, the earliest dating back to 6 Sep 2024. 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.