Our Data Sources
9, Constance Place, Knebworth has 2 entries in the Land Registry, most recently in November 2020 and a single entry in the EPC database dated May 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
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 9, Constance Place, Knebworth, we estimate a market value of £309,050 and a rental value of £1,425 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £273,730 and £1,262 per month respectively.
Energy Efficiency
9, Constance Place, Knebworth has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 06 May 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
The most recent sale of 9, Constance Place, Knebworth completed on 27th November 2020 at £335,000 and was recorded by HM Land Registry as a leasehold flat.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 14.0% over the period since November 2020.
- Sold Nov 2020£335,000
- Sold Jul 2016£314,950
Similar Properties Sold Nearby
Since 2016 35 properties similar to 9, Constance Place, Knebworth have sold within a radius of 920 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 14th May 2026, was 18, Constance Place, Knebworth, SG3 6EE, a leasehold flat which sold for £280,000.
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 Mar 2025£270,000 | 2 Bed Flat19, Constance Place, Knebworth, SG3 6EE19, 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
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
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
- 4 Constance Place
3 Bed Flat | 0 m | Est. Value: £419,768
Location Comparison
Of the 26 addresses on Constance Place, Knebworth, SG3, 9, Constance Place, Knebworth comes out as the 26th largest and the 26th most expensive in our analysis of the public data.
It is also £250k less expensive than the average property across the SG3 district.
More reading links
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
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












