| Postcode | SG3 6NN | 
|---|---|
| Post Town | Knebworth | 
| Nearest station | Knebworth (1 km) | 
| Bus stops | Golf Club (NW) Station Road (N) Knebworth Rail Station () Knebworth Railway Station (E) Station Road (S) Knebworth Railway Station (W) | 
| Roads in this postcode | |
| Number of UPRNs | 35 View | 
| Known addresses | 21 Stevenage Road, Knebworth 23 Stevenage Road, Knebworth 25 Stevenage Road, Knebworth 27 Stevenage Road, Knebworth 31 Stevenage Road, Knebworth 32 Stevenage Road, Knebworth 33 Stevenage Road, Knebworth 34 Stevenage Road, Knebworth 36 Stevenage Road, Knebworth 40 Stevenage Road, Knebworth 44 Stevenage Road, Knebworth 46 Stevenage Road, Knebworth 48 Stevenage Road, Knebworth 50 Stevenage Road, Knebworth 52 Stevenage Road, Knebworth 56 Stevenage Road, Knebworth 62 Stevenage Road, Knebworth 64 Stevenage Road, Knebworth 66 Stevenage Road, Knebworth 68 Stevenage Road, Knebworth 70 Stevenage Road, Knebworth 72 Stevenage Road, Knebworth | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 51.871335 | |
|---|---|---|
| Longitude | -0.18646 | |
| Easting | 524953 | |
| Northing | 220750 | |
| Grid reference | TL249207 | |
| UTM reference | 30U 693685 5750470 | |
| what3words | noon.windy.played | |
| FixPhrase | crisped magnesium status twiddle | |
| Plus code | 9C3XVRC7+GC | |
| Altitude | 108 metres (354 feet) | |
| Sunrise (today) | 6:54 | |
| Sunset (today) | 16:36 | |
| Distance away | ||
| Distance to sea | 60 KMs (37.3 miles) | 
| Parish | Knebworth | E04004783 | 
|---|---|---|
| Ward | Knebworth | E05015768 | 
| Local Authority District | North Hertfordshire | E07000099 | 
| County Electoral Division | Knebworth & Codicote | E58000646 | 
| Local Authority | Hertfordshire | E10000015 | 
| County | Hertfordshire | E10000015 | 
| Constituency (2024) | Stevenage | E14001516 | 
| MP | Kevin Bonavia | Labour | 
| Police force | Hertfordshire | |
| Water company | Affinity Water | |
| Sewage company | Thames Water | |
| NUTS/ITL 3 | North and East Hertfordshire | |
| NUTS/ITL 2 | Bedfordshire and Hertfordshire | |
| NUTS/ITL 1 | East of England | |
| Country | England | E92000001 | 
| Date introduced | January 1980 | 
|---|---|
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Population (2011) | 79 | |
|---|---|---|
| Households (2011) | 32 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Nearer to a major town or city | |
| Rural/urban (2011) | Rural town and fringe | |
| Built up area (2024) | Knebworth | E63011325 | 
| Census output area (2021) | E00120006 | |
| Census output area (2011) | 1B2 | |
| Lower layer super output area (2021) | North Hertfordshire 015F | E01023629 | 
| Lower layer super output area (2011) | North Hertfordshire 015F | E01023629 | 
| Middle layer super output area (2021) | Knebworth, Codicote & Kimpton | E02004923 | 
| Middle layer super output area (2011) | Knebworth, Codicote & Kimpton | E02004923 | 
| Travel to work area | Stevenage and Welwyn Garden City | E30000272 | 
| Average property price in Stevenage | £395,224 | 
|---|---|
| Annual change | 0.3% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 27 Stevenage Road, Knebworth | Detached (freehold) | Aug 2025 | £835,000 | 
| Detached (freehold) | Sep 2012 | £435,000 | |
| Detached (freehold) | Jun 2006 | £435,000 | |
| Detached (freehold) | Apr 1999 | £171,000 | |
| 31 Stevenage Road, Knebworth | Detached (freehold) | Feb 2025 | £850,000 | 
| Detached (freehold) | Sep 2003 | £429,000 | |
| Detached (freehold) | Oct 2001 | £345,000 | |
| 25 Stevenage Road, Knebworth | Detached (freehold) | May 2024 | £722,500 | 
| Detached (freehold) | Jan 2006 | £378,000 | |
| 34 Stevenage Road, Knebworth | Detached (freehold) | Jun 2021 | £945,000 | 
| 48 Stevenage Road, Knebworth | Detached (freehold) | Jun 2021 | £1,200,000 | 
| Detached (freehold) | Jul 2012 | £735,000 | |
| Detached (freehold) | Aug 1997 | £145,000 | |
| 32 Stevenage Road, Knebworth | Detached (freehold) | Dec 2020 | £850,000 | 
| 56 Stevenage Road, Knebworth | Detached (freehold) | Jan 2020 | £732,500 | 
| 21 Stevenage Road, Knebworth | Detached (freehold) | Nov 2019 | £625,000 | 
| 44 Stevenage Road, Knebworth | Detached (freehold) | Aug 2019 | £1,185,000 | 
| Detached (freehold) | Oct 2014 | £862,500 | |
| 33 Stevenage Road, Knebworth | Detached (freehold) | May 2019 | £675,000 |