Knella Road is in Welwyn Garden City and in Welwyn Hatfield district. AL7 3NJ is located in the Peartree electoral ward, within the English Parliamentary constituency of Welwyn Hatfield. This postcode has been in use since 1980-01-01.
StreetScan combines information about Knella Road, Welwyn Garden City, AL7 3NJ and displays a report on the quality of life in this place and its surroundings.
Nearby postcodes are: AL7 1JQ, AL7 3NT, AL7 3NX, AL7 3NL, AL7 3NU, AL7 3NN, AL7 3NH, AL7 1GY, AL7 3NQ.
In the UK, the overall gender distribution is approximately 49% male and 51% female. However, the area surrounding AL7 3NJ, has a female population slightly higher than UK average, with 52.7% of residents being female. Several factors can contribute to this. Women generally live longer than men, resulting in a higher proportion of women in neighborhoods with significant elderly populations. Typically, as people grow older, they tend to relocate from city center addresses to suburban areas, smaller towns, and rural locations. Consequently, these areas often have a higher number of females. A higher female population can also be found in areas with industries that employ more women, such as healthcare, education, and retail.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Female | 54.4% | 52.7% | -1.7% | 51.0% | 1.7% |
| Male | 45.6% | 47.3% | 1.7% | 49.0% | -1.7% |
Across the UK, the average relationship status breakdown is roughly 44% married, 38% single, 9% divorced, 6% widowed, and 2% separated.
In the immediate area around AL7 3NJ, a significant portion of the population is single, making up 49.1% of the residents. On average, approximately 38% of individuals who responded to the census in the UK were single. Areas with higher single populations are typically urban centers, university towns, regions with dynamic job markets, rich cultural offerings and entertainment facilities. These regions also tend to have a younger demographic.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Single | 45.3% | 49.1% | 3.8% | 37.9% | 11.2% |
| Married: Opposite sex | 35.4% | 33.3% | -2.1% | 44.2% | -10.9% |
| Married: Same sex | 0% | 0.4% | 0.4% | 0.3% | 0.1% |
| Separated | 3.1% | 4.8% | 1.7% | 2.2% | 2.6% |
| Divorced | 13.4% | 8.8% | -4.6% | 9.1% | -0.3% |
| Widowed | 2.8% | 3.7% | 0.9% | 6.1% | -2.4% |
Across the UK, the average 48.4% rated their health as Very Good, 33.6% as Good, 12.7% as Fair, 4% as Bad, and 1.2% as Very Bad.
Population age significantly impacts residents' health. Additionally, socioeconomic status plays a crucial role: higher income levels and lower poverty rates are linked to better health outcomes. Affluent areas benefit from higher living standards, access to private healthcare, and healthier lifestyle choices.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Very good health | 51.1% | 52.3% | 1.2% | 48.4% | 3.9% |
| Good health | 36.7% | 31.3% | -5.4% | 33.6% | -2.3% |
| Fair health | 8.3% | 12.5% | 4.2% | 12.7% | -0.2% |
| Bad health | 3.6% | 3.1% | -0.5% | 4.0% | -0.9% |
| Very bad health | 0.3% | 0.8% | 0.5% | 1.2% | -0.4% |
During the 2021 census, the educational qualifications of residents across the UK were as follows: 18.2% had no qualifications, 9.6% had 1-4 GCSEs, 13.4% had 5 or more GCSEs and 1-2 A/AS Levels, 16.9% had 2 or more A Levels, 33.8% held a degree (or equivalent), and 5.4% had completed an apprenticeship.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| No qualifications | 22.8% | 17.4% | -5.4% | 18.2% | -0.8% |
| 1-4 GCSEs or Equivalent | 21.7% | 14.5% | -7.2% | 9.6% | 4.9% |
| 5 or more GCSEs, an A-Level or 1-2 AS Levels | 18.9% | 16.7% | -2.2% | 13.4% | 3.3% |
| Apprenticeship | 3.1% | 2.5% | -0.6% | 5.3% | -2.8% |
| HNC, HND or 2+ A Levels | 12.2% | 18.8% | 6.6% | 16.9% | 1.9% |
| Degree or Similar | 16.9% | 28.3% | 11.4% | 33.8% | -5.5% |
| Other | 4.3% | 1.8% | -2.5% | 2.8% | -1.0% |
This area closely mirrors the overall ethnic composition of the UK, with 81.4% of the population identifying as white, with UK average of 81.4%.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Chinese | 1.4% | 1% | -0.4% | 0.7% | 0.3% |
| Indian | 0.3% | 0.3% | 0.0% | 3.1% | -2.8% |
| Other Asian | 3.9% | 2.3% | -1.6% | 1.6% | 0.7% |
| Black African | 3.9% | 6.4% | 2.5% | 2.5% | 3.9% |
| Black Caribbean | 1.7% | 0% | -1.7% | 1.0% | -1.0% |
| Other Black | 0% | 1% | 1.0% | 0.5% | 0.5% |
| Mixed White and Asian | 1.4% | 0.5% | -0.9% | 0.8% | -0.3% |
| Mixed White and African | 0.8% | 1% | 0.2% | 0.4% | 0.6% |
| Mixed White and Caribbean | 1.1% | 2.6% | 1.5% | 0.9% | 1.7% |
| Mixed Other | 0.6% | 0.5% | -0.1% | 0.8% | -0.3% |
| White | 82.9% | 81.4% | -1.5% | 81.4% | 0.0% |
| Gypsy or Irish Traveller | 0.8% | 1% | 0.2% | 0.1% | 0.9% |
| Arab | 1.1% | 1% | -0.1% | 0.6% | 0.4% |
| Other | 0.3% | 0.8% | 0.5% | 1.6% | -0.8% |
In this area, 85.9% of the population were born in the United Kingdom, which is similar to the UK average of 83.2%.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| United Kingdom | 87.8% | 85.9% | -1.9% | 83.2% | 2.7% |
| European Union | 3% | 6.5% | 3.5% | 6.1% | 0.4% |
| Rest of Europe | 0% | 0.5% | 0.5% | 0.8% | -0.3% |
| Africa | 5.2% | 4.7% | -0.5% | 2.7% | 2.0% |
| Middle East and Asia | 3.6% | 2.3% | -1.3% | 5.6% | -3.3% |
| The Americas and the Caribbean | 0.3% | 0% | -0.3% | 1.3% | -1.3% |
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Born in the UK | 87.3% | 85.5% | -1.8% | 83.2% | 2.3% |
| 10+ Years | 2.8% | 12.2% | 9.4% | 9.8% | 2.4% |
| 5-10 Years | 0.3% | 2.3% | 2.0% | 2.9% | -0.6% |
| 2-5 Years | 5.2% | 0% | -5.2% | 2.2% | -2.2% |
| Less than 2 years | 4.4% | 0% | -4.4% | 1.9% | -1.9% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| United Kingdom | 70.8% | 76.7% | -5.9% |
| Ireland | 1% | 0.6% | 0.4% |
| Italy | 0.3% | 0.6% | -0.3% |
| Portugal | 0.3% | 0.5% | -0.2% |
| Poland | 3.9% | 1.3% | 2.6% |
| Other EU countries | 1.6% | 1.5% | 0.1% |
| North Africa | 0.3% | 0.1% | 0.2% |
| Central and Western Africa | 0.5% | 0.3% | 0.2% |
| South and Eastern Africa | 0.5% | 0.2% | 0.3% |
| Eastern Asia | 0.5% | 0.3% | 0.2% |
| South-East Asia | 0.3% | 0.2% | 0.1% |
| No passport held | 20.2% | 13.5% | 6.7% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| No religion | 51.8% | 37.2% | 14.6% |
| Christian | 35.9% | 46.2% | -10.3% |
| Buddhist | 0.8% | 0.5% | 0.3% |
| Muslim | 3.9% | 6.5% | -2.6% |
| Not answered | 7.6% | 6.0% | 1.6% |
Over the last 12 months, the overall crime rate around Knella Road was 161.6 per 1,000 residents, which is 72.8% higher than the Howlands average. The most reported crime type was Violence and sexual offences.
Knella Road has the 9th highest crime rate of 49 local areas in Howlands and the 51st highest crime rate of 363 local areas in Welwyn Hatfield .
Violent and sexual offences accounted for around 78.3 crimes per 1,000 residents and have been rising year on year. Over the last decade, overall crime has fallen by about -55.2%.

Households in this area have a similar level level of wealth to the average household in England and Wales. 55% of analyzed areas in England and Wales have lower average household annual income than this area.

| Address | Sale Price | Sale Date | Price Estimate 2025 |
|---|---|---|---|
| 150 Knella Road, Welwyn Garden City, Hertfordshire Terraced, an established residential building | £430,000 | 2023-02-28 | £417,022 |
| 138 Knella Road, Welwyn Garden City, Hertfordshire Terraced, an established residential building | £443,000 | 2022-09-16 | £421,156 |
| 150 Knella Road, Welwyn Garden City, Hertfordshire Terraced, an established residential building | £375,000 | 2020-07-24 | £420,838 |
| 138 Knella Road, Welwyn Garden City, Hertfordshire Terraced, an established residential building | £250,000 | 2015-05-01 | £354,934 |
| 138 Knella Road, Welwyn Garden City, Hertfordshire Terraced, an established residential building | £235,000 | 2013-12-06 | £378,829 |
AL7 3NJ area has a low unemployment rate. According to Census 2021, 3% residents of this area were unemployed, while the average in the UK was 4.83%. A low level of unemployment in an area indicates a strong job market, where most people who are seeking work can find employment. This generally reflects a healthy economy in the area.
| Full-Time Employee | 111 |
| Part-Time Employee | 54 |
| Self-Employed | 27 |
| Looking after home or family | 18 |
| Long-Term Sick or disabled | 15 |
| Retired | 14 |
| Student (economically inactive) | 10 |
| Other | 9 |
| Unemployed | 9 |
| Full-Time Student (with or without job) | 8 |
| Wholesale and retail trade; repair of motor vehicles and motor cycles | 49 |
| Human health and social work activities | 28 |
| Construction | 16 |
| Manufacturing | 12 |
| Education | 10 |
| Professional, scientific and technical activities | 9 |
| Transport and storage | 8 |
| Information and communication | 7 |
| Other | 6 |
| Administrative and support service activities | 6 |
| Accommodation and food service activities | 6 |
| Public administration and defence; compulsory social security | 4 |
| Financial and insurance activities | 3 |
| Water supply; sewerage, waste management and remediation activities | 1 |
| Ofsted Overall Effectiveness | Distance | Establishment Type | Has Nursery Classes | Gender | More Info | |
|---|---|---|---|---|---|---|
| Ludwick Nursery School Holwell Road , AL7 3RP | 4out of 4 | 733 yd | Local authority nursery school | Yes | Mixed | More About School |
| Tenterfield Nursery School London Road , AL6 9JF | 4out of 4 | 3,802 yd | Local authority nursery school | Yes | Mixed | More About School |
| Birchwood Nursery School Birchway , Crawford Road AL10 0PD | 4out of 4 | 4,558 yd | Local authority nursery school | Yes | Mixed | More About School |
| Ofsted Overall Effectiveness | Distance | Establishment Type | Has Nursery Classes | Gender | More Info | |
|---|---|---|---|---|---|---|
| Swallow Dell Primary and Nursery School Blackthorn Road , AL7 3JP | 3out of 4 | 571 yd | Community school | Yes | Mixed | More About School |
| Panshanger Primary School Daniells , AL7 1QY | 3out of 4 | 679 yd | Community school | Yes | Mixed | More About School |
| Holwell Primary School Holwell Road , AL7 3RP | 3out of 4 | 706 yd | Community school | No | Mixed | More About School |
| Peartree Primary School Peartree Primary School , AL7 3XW | 3out of 4 | 729 yd | Community school | No | Mixed | More About School |
| Watchlytes Primary School Watchlytes , AL7 2AZ | 3out of 4 | 1,228 yd | Community school | Yes | Mixed | More About School |
| Ofsted Overall Effectiveness | Distance | Establishment Type | Has Nursery Classes | Gender | More Info | |
|---|---|---|---|---|---|---|
| Ridgeway Academy Herns Lane , AL7 2AF | 2out of 4 | 904 yd | Academy sponsor led | No | Mixed | More About School |
| Stanborough School Lemsford Lane , AL8 6YR | 2out of 4 | 2,464 yd | Academy converter | Not Applicable | Mixed | More About School |
| Monk's Walk School Knightsfield , AL8 7NL | 3out of 4 | 3,005 yd | Academy converter | No | Mixed | More About School |
| Onslow St Audreys School Old Rectory Drive , AL10 8AB | 2out of 4 | 5,240 yd | Academy converter | No | Mixed | More About School |
| Ofsted Overall Effectiveness | Distance | Establishment Type | Has Nursery Classes | Gender | More Info | |
|---|---|---|---|---|---|---|
| Lakeside School Lemsford Lane , AL8 6YN | 4out of 4 | 2,635 yd | Community special school | Yes | Mixed | More About School |
| Knightsfield School Knightsfield , AL8 7LW | 4out of 4 | 3,135 yd | Academy special converter | Not Applicable | Mixed | More About School |
| Sherrardswood School Lockleys , AL6 0BJ | - not rated | 3,783 yd | Other independent school | Yes | Mixed | More About School |
School statistics for this postcode are based on Ofsted rankings.
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Hertfordshire Fire & Rescue Service | Fire Station, Bridge Road East | 199 yd | |
| PW Gates | Unit 2, Swallow End | 371 yd | |
| Tewin Road Cafe | Tewin Road, Welwyn Garden City | 760 yd | |
| Squirrels at Ludwick | Holwell Road, Welwyn Garden City | 770 yd | |
| Taylor Mammon and Nathan Ltd | 8 Little Mundells, Welwyn Garden City | 924 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Shamrock Club | Ridgeway, Welwyn Garden City | 533 yd | |
| Attimore Hall | Ridgeway, Welwyn Garden City | 533 yd | |
| The Chieftain | Cole Green Lane, Welwyn Garden City | 934 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Fat Jacks / Downtown Pizza | 15 Little Ridge, Welwyn Garden City | 431 yd | |
| Megna Indian Take Away | Unit 7, Tewin Road Business Centre | 663 yd | |
| Masterchef and Shakes | Unit 16, Peartree Farm | 686 yd | |
| Pizza Dellorto | 2 Blackthorn Road, Welwyn Garden City | 704 yd | |
| Golden Valley Chinese Takeaway | 100 Peartree Lane, Welwyn Garden City | 919 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Morrisons | 40 Black Fan Road, Welwyn Garden City | 661 yd | |
| The Co-operative Food | 13-17 Cole Green Lane, Welwyn Garden City | 940 yd |
| Facility Name | Sport Objects | Distance |
|---|---|---|
| Swallow Dell Primary And Nursery School BLACKTHORN ROAD | grass pitches | 462 yd |
| Ridgeway Academy HERNS LANE | artificial grass pitch, grass pitches, health and fitness suite | 827 yd |
This statistics are based on Active Places Data - Contains Data © Sport England
| Percentage of premises that have Superfast Broadband (30Mbit/s or greater) coverage from fixed broadband | 100.0% |
| Percentage of premises that have Ultrafast Broadband (100Mbit/s or greater) coverage from fixed broadband | 100.0% |
| Percentage of premises that have Ultrafast Broadband (300Mbit/s or greater) coverage from fixed broadband | 100.0% |
| Percentage of premises that have coverage from a Gigabit capable service from fixed broadband | 100.0% |
| Percentage of premises unable to receive 2Mbit/s | 0.0% |
| Percentage of premises unable to receive 5Mbit/s | 0.0% |
| Percentage of premises unable to receive 10Mbit/s | 0.0% |
| Percentage of premises unable to receive 30Mbit/s | 0.0% |
| Median download speed | 80 Mbit/s |
| Average download speed | 123.2 Mbit/s |
| Minimum download speed | 500 Mbit/s |
| Maximum download speed | 500 Mbit/s |
| Median upload speed | 20 Mbit/s |
| Average upload speed | 16 Mbit/s |
| Maximum upload speed | 35 Mbit/s |
Broadband statistics are based on Ofcom's Communications Market Report (CMR) 2022.