Our Data Sources
19, Constance Place, Knebworth has 2 entries in the Land Registry, most recently in March 2025 and a single entry in the EPC database dated June 2016.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 19, Constance Place, Knebworth would be worth £309,050, with a potential rental value of £1,425 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £273,730, with a rental value of £1,262 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
19, Constance Place, Knebworth has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 13 Jun 2016.
The property is not connected to mains gas and has high performance glazing. It is heated using air source heat pump (underfloor, electric).
Sold Prices
19, Constance Place, Knebworth last changed hands on 31st March 2025, selling for £270,000. The transaction was logged as a leasehold flat by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 12.2% since March 2025.
- Sold Mar 2025£270,000
- Sold Jul 2016£324,950
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 35 sales of comparable properties within 920 metres of 19, Constance Place, Knebworth since 2016.
Most recently, 18, Constance Place, Knebworth, SG3 6EE, a leasehold flat, sold at £280,000 on the 14th May 2026.
Read more about house prices in SG3.
- Sold May 2026£280,000 | 2 Bed Flat18, Constance Place, Knebworth, SG3 6EE18, Constance Place, Knebworth, SG3 6EE
- Sold Dec 2025£280,000 | 2 Bed Flat7, Constance Place, Knebworth, SG3 6EE7, Constance Place, Knebworth, SG3 6EE
- Sold May 2024£334,500 | 2 Bed Flat17, Lowe House, Knebworth, SG3 6EU17, Lowe House, Knebworth, SG3 6EU
- Sold May 2024£290,000 | 2 Bed Flat44, Lowe House, Knebworth, SG3 6EU44, Lowe House, Knebworth, SG3 6EU
- Sold Jan 2024£277,500 | 2 Bed Flat26, Lowe House, Knebworth, SG3 6EU26, Lowe House, Knebworth, SG3 6EU
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £353,577, ranging from £294,334 to £419,768.
- 15 Constance Place
3 Bed Flat | 0 m | Est. Value: £388,284
- 24 Constance Place
2 Bed Flat | 0 m | Est. Value: £301,651
- 22 Constance Place
2 Bed Flat | 0 m | Est. Value: £301,651
- 6 Constance Place
3 Bed Flat | 0 m | Est. Value: £404,208
- 9 Constance Place
2 Bed Flat | 0 m | Est. Value: £294,334
Location Comparison
Our analysis of the public data ranks 19, Constance Place, Knebworth as the 25th largest and the 25th most expensive of the 26 addresses on Constance Place, Knebworth, SG3.
Against the SG3 postcode district average, it is £250k less expensive than the typical property.
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Schools Nearby
- Knebworth Primary and Nursery School100 m away
- All Saints Church of England Voluntary Aided Primary School, Datchworth1.5 km away
- St Michael's Woolmer Green CofE VA Primary School1.5 km away
- Barnwell School2.9 km away
- Marriotts School4.4 km away
- Monk's Walk School5.3 km away
More reading links
Public Transport Nearby
- Knebworth|500 m away
- Watton-at-Stone|4.4 km away
- Stevenage|4.5 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
