Evidence-led Impact Evaluation
Proving What We Do Works, Backed by Real Results
Youth Intervention Evaluation
A clear, evidence-led pathway that tracks trust, safety, progress, and community impact, in real time.
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Step 01
Initial Engagement
Overcoming distrust and resistance
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Step 02
Intervention Evaluation
Evaluating impact on violence and exploitation
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Step 03
Economic Growth Measurement
Assessing education and employment progression
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Step 04
Community Empowerment
Equipping and empowering young communities
Street-to-Data Practice
Where Intervention meets Evidence
Our newly developed integrated data platform enhances the sustainable impact of intervention work by turning delivered practice into powerful evidence. Throughout a young person’s developmental journey with us, we track meaningful outcomes across all phases and stages of our intervention programme. This includes progression and relapse setbacks. By embedding evidence collection directly into practice, our team can better see what we do, what we need to do, and where staff can make smarter decisions in real-time.
Being evidence-led not only makes our approach more truthful, trustworthy and transparent, but also more visible, accountable and understandable for staff, young people, communities, strategic partners, funders, and donors. As part of our Centre for Applied Research & Evaluation (C.A.R.E.), our evidence-led data impact system is focused upon creating a research-driven evidence base that shapes how we respond to risks outside the home for both practitioners and policymakers.
Driving Change on the Frontline
Impact Highlights for 2025
For 5-years Streets of Growth have been one of the key frontline Youth Intervention service delivery partners as part of the London Mayor’s Violence Reduction Unit (VRU) as part of the MyEnds programme in Tower Hamlets. The (VRU) was set up in 2019 to tackle knife crime and violence affecting young people. January 2026 marks a major milestone as statistics just released show:
Homicides in London – At their lowest levels in over a decade.
The Homicide rate per capita - The lowest since records began in 1997.
Figures at that time the (VRU) was set up showed the number of homicides of young people were three times higher than they are today.
The number of young people under-25 killed in London is at its lowest level this century and the number of teenage homicides the joint lowest for more than three decades.
Hospital admissions of young people for knife assault have fallen by almost a half since the VRU' was established and there have been nearly 14,000 fewer incidents of violence with injury over the same seven-year period.
The average annual cost of keeping a young person in a secure detention setting is approximately £119,000. Streets of Growth works intensively with approx 200 young people each year, experiencing and engaged in harm and at significant risk of custody.
Based on these figures, the potential avoided cost to the public purse is up to £23.8 million per year, compared to our annual organisational running cost of approximately £800,000. This represents a potential social return of nearly £30 for every £1 invested in our early intervention and prevention.
Homicide victims per year (London)
Pandemic period highlighted (2020–2021). 2025 is Jan–Jun.
Homicide victims by age group (London)
VRU created (2019) dotted line. Pandemic period shaded (2020–2021). 2025 is Jan–Jun.
Best Price, Best Practice, Best Value
The average yearly cost of keeping one person in a UK prison.
The average yearly cost of placing a child in a youth detention centre in the UK.
The estimated cost of knife crime to the UK economy every year.
The cost of investigating the murderof a young life is appropriatly.
161 ’in-risk’ young people targeted and re-engaged for one year on Streets of Growth’s intervention programme. None of these young people entered the criminal justice system.
It costs £800,000 per year to run Streets of Growth entire organisational operations, working with 200 young people to move them out of harms way and into employment.
Every pound invested in early relationship-led intervention goes further than crisis response. Streets of Growth coaches young people to step away from harm and rebuild their futures, delivering measurable evidence-led outcomes while reducing the far higher costs of custody, violence, and long-term disengagement.
Turning Evaluation into Actionable Change
Insight Tours
30 Years of Youth Intervention in Action
Due to demand, Streets of Growth now offer pre-booked Insight Tours giving you a behind the scenes glimpse into 30 Years of Outstanding Youth Intervention. This includes visuals and live presentations of our model of approach, unique culture and workplace environment. You will be taken on an incredible journey of how Streets went from a neighbour’s idea into becoming one of East London’s leading authorities on Youth Intervention in London’s east end. Whether you’re an CEO, practitioner, research/academic, looking for insights and inspiration in this field, this is the tour for you!
Please note, our Insight Tours do not allow for visitors to watch or engage with young people participating on our intervention programme due to our ethical practice and safeguarding policy. All costs go into Streets of Growth frontline work.
For more information and costs for individual or group bookings please contact us or call Streets of Growth on 0207 515 7356.
Awards Impact Wall
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