AL6 9SU North Hertfordshire
Live postcode, introduced January 1980. Ward: Knebworth. Region: East of England.
Streets
Council tax
What each band costs in North Hertfordshire in 2026-27: Band D £2,449 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,632 | £1,904 | £2,176 | £2,449 | £2,993 | £3,537 | £4,081 | £4,897 |
Homes by band in the neighbourhood around this postcode: most are in band F (20% of about 790 homes).
Planning and heritage
- Conservation area: no postcode centre in this postcode is in one.
- Listed buildings within 100 m of this postcode: 1.
- Article 4 direction (removing permitted development rights): none recorded, though not every council has published theirs.
- Tree preservation orders: none recorded, though not every council has published theirs.
- Green belt: yes, North Hertfordshire.
Listed buildings
- ANNESGARTH, grade II
Brownfield land registered for housing within 1.0 km
- The Paddocks, Pottersheath Road, Pottersheath, AL6 9SZ: up to 1 home, permissioned (280 m)
Flood risk
No address in this postcode is in an area at high, medium or low risk of flooding from rivers, the sea or surface water. The rest are in areas at very low risk: less than a 0.1% (1 in 1,000) chance a year.
Rivers and the sea alone: no home is in an area at risk.
High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. Very low: under 0.1%. The rivers and sea figures allow for flood defences. Counts cover whole postcodes, which can include other streets.
Flood zone for planning: no postcode centre is in flood zone 2 or 3.
Height above sea level
The postcode's 30 addresses are between 117 m and 123 m above sea level (121 m on average).
Broadband
Superfast 95%, ultrafast 95%, gigabit 95% of premises; 5% cannot get 10 Mbit/s. Ofcom Connected Nations, data as at January 2026.
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Knebworth 437,000 journeys in 2024–25 | 2.2 km |
| Welwyn North 387,000 journeys in 2024–25 | 2.9 km | |
| Welwyn Garden City 2.5 million journeys in 2024–25 | 5.3 km | |
| Bus stops | None within 800 m | |
| Bus or coach station | Bus Station Welwyn Garden City | 5.2 km |
| Car parks | Lockleys Drive Car Park | 2.1 km |
| EV charging points | 1 within 1.6 km; nearest Osprey Charging Station | 1.4 km |
| Airport with scheduled flights | London Luton Airport LTN | 11.9 km |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | Bridge Cottage Surgery | 2.3 km |
| Pharmacies | Codicote Pharmacy | 2.2 km |
| NHS dentists | Knebworth Dental Surgery | 1.8 km |
| Hospital | New Qeii Hospital Cdc | 7.4 km |
| Police station | Stevenage Police Station | 5.6 km |
| Cash machines | The Cooperative Food Knebworth Cashzone | 2.3 km |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | Unnamed 640 m² | 1.5 km |
| Play area | Unnamed 1,960 m² | 1.3 km |
| Playing field | Unnamed 1.6 ha | 1.3 km |
| Allotments | Unnamed 4,270 m² | 1.4 km |
Landmarks
The nearest historic landmark is Homewood, a registered park or garden (Grade II), 1.6 km north. 8 listed buildings are within 1.0 km.
| Name | What it is | From the postcode's centre |
|---|---|---|
| Homewood | Registered park or garden, Grade II | 1.6 km north |
| Name | What it is | From the postcode's centre |
|---|---|---|
| Pond Plantation | Wood | 180 m east |
| Ninning's Wood | Wood | 410 m north-east |
| Aunt Wood | Wood | 470 m south-east |
| Dolesbury Firs | Wood | 510 m south-east |
| Digswell Lake | Lake or reservoir | 3.4 km south |
| Oak Vale | Valley | 4.3 km east |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 7.7 | 40 | 10 |
| Fine particles (PM2.5) | 7.1 | 20 | 5 |
| Particles (PM10) | 12.5 | 40 | 15 |
All three are within the UK legal limits; PM2.5 is above the WHO guideline, as in most towns and cities.
Road and rail noise
| Level | Road traffic | Railways |
|---|---|---|
| 70 to 74 | 2 | 0 |
| 65 to 69 | 2 | 0 |
| 55 to 59 | 15 | 0 |
| Under 55 | 11 | 30 |
19 of the postcode's 30 addresses are modelled at 55 dB or more from road traffic, above the WHO guidelines.
People and work
Who lives here
| Around this postcode | England | |
|---|---|---|
| Median age | 57 | 40 |
| Children under 15 | 12% | 17% |
| Aged 65 and over | 37% | 18% |
Homes
| Around this postcode | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 93% | 61% |
| Owned outright | 58% | 33% |
| Shared ownership | under 1% | 1% |
| Social rented | 0% | 17% |
| Private rented | 6% | 21% |
Work and commuting
| Around this postcode | England | |
|---|---|---|
| Adults (16 and over) in work | 58% | 57% |
| Unemployment (of those working or looking for work) | 2% | 6% |
| Retired (of adults) | 27% | 22% |
| Long-term sick or disabled (of adults) | 6% | 4% |
| Work mainly from home (of those in work) | 47% | 32% |
| Travel to work by car or van | 38% | 48% |
| By train, Underground, metro or tram | 5% | 4% |
| By any public transport, including bus | 7% | 8% |
| On foot or by bicycle | 3% | 10% |
| Work within 10 km of home (of those who travel to work) | 43% | 65% |
| Work 30 km or more away | 18% | 8% |
Education and languages
| Around this postcode | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 40% | 34% |
| No qualifications | 21% | 18% |
| Apprenticeship as highest qualification | 5% | 5% |
| Main language English (aged 3 and over) | 96% | 91% |
| Cannot speak English well or at all | 1% | 2% |
Deprivation
The neighbourhood around this postcode is in decile 9 of 10 on the English Indices of Deprivation 2025, where 1 is the most deprived tenth of England's 33,755 neighbourhoods and 10 the least.