East London Is Not Where Sidestream Sits
Most location pages open by claiming the postcode. This one cannot. Sidestream is based at 58 Malden Road, London NW5 3HG, on the Kentish Town and Chalk Farm boundary. That is north London. It is not east London, and no reading of the map makes it so. If what you want is a consultancy with an office in Hackney, Tower Hamlets or Newham and consultants who know the borough's politics from the inside, we are not that firm, and it is better that you know now.
What we can offer honestly is different. Behaviour change work does not happen in our building. The diagnostic happens in yours. The rehearsal happens in your rooms, or a venue near you. The embedding happens inside your operational week. Every engagement Sidestream runs is delivered where the client is, so the useful question is not how far we travel but whether the method fits the organisation. In east London there are several organisational types where it fits unusually well.
This page therefore does two things. It sets out what the journey from NW5 to E1, E2, E15 or E20 actually involves, and it describes the organisations in this part of London whose behavioural problems our method was built for. It does not claim local knowledge we do not have. For the financial and professional services population on the Isle of Dogs, our Canary Wharf and Docklands guide covers the banking and Big-4 agenda in detail, and this page deliberately does not repeat it.
The Journey From Kentish Town
Kentish Town West station is a few minutes' walk from Malden Road, and Transport for London lists it as a Mildmay line stop on the London Overground. Dalston Kingsland, Hackney Central, Homerton, Hackney Wick and Stratford are all served directly from that platform. For Shoreditch, Hackney Wick and the Queen Elizabeth Olympic Park, that is one train and no interchange.
For the Whitechapel end of east London the route runs through the centre. Whitechapel station itself carries the Elizabeth line, the District line, the Hammersmith and City line and the Windrush line of the Overground, according to Transport for London, which makes it one of the better-connected points in the area for participants travelling in from elsewhere. Venue choice belongs in the design conversation early, not in a booking made at the end.
The reason any of this matters is narrow. Behaviour change work needs repeated in-person contact: an initial diagnostic, observation of real work, a design review, delivery, and a debrief some weeks later. A provider who can realistically make the journey once will design from a briefing document, and a programme designed from a briefing document is a generic programme with the client's logo on it. We would rather come three times.
Five Kinds of East London Organisation
East London is not one market. A programme written for one of these populations will fail politely in front of another. Cultural register is the largest single variable in immersive design, which is why scenarios are written for the population rather than pulled off a shelf.
Public bodies and regulators sit alongside all five. The Financial Conduct Authority's head office is at 12 Endeavour Square, E20, minutes from the Olympic Park, and the Park's own investment material lists Westfield Stratford City, the University of East London and Birkbeck among the employers and campuses in the immediate area, with Stratford International and Stratford regional stations connecting it to the rest of London and the UK.
- The Shoreditch tech and creative cluster. Hackney Council describes Shoreditch as the borough's major employment area, providing over 40,000 jobs in over 4,000 businesses, and as the home of Tech City. Government backing for the cluster around Old Street goes back more than a decade: a December 2012 announcement of £50m to rebuild the Old Street roundabout cited over 1,300 companies in the cluster at that point. The recurring behavioural agenda here is scaling leadership, feedback inside flat structures, and the manager conversation about what AI does to a role.
- Stratford, the Olympic Park and East Bank. Queen Elizabeth Olympic Park covers 560 acres and is managed by the London Legacy Development Corporation, formed in April 2012. Its East Bank quarter brings together BBC Music Studios, Sadler's Wells East, London College of Fashion at UAL with 6,500 students, UCL East with around 4,000, and two V&A sites, backed by more than £600m from the Mayor of London. UCL East opened One Pool Street in autumn 2022 and Marshgate in autumn 2023. New institutions sharing a site have a standing behavioural problem: teams drawn from different parent organisations who have never agreed how they work together.
- Queen Mary University of London. A Russell Group university with its main campus at Mile End Road, E1, more than 32,000 students, around 5,700 staff and five London campuses. Its Faculty of Medicine and Dentistry, built from the old St Bartholomew's and London Hospital medical colleges, sits at Whitechapel and Charterhouse Square. Of its domestic undergraduates, 91 per cent come from state schools and 46 per cent are the first in their family to enter higher education; Queen Mary reports the best record of all the Russell Group universities in England for recruiting undergraduates from state schools and from lower-income families. Academic leadership development here has to survive an evidence-led and properly sceptical audience.
- Barts Health NHS Trust. Five hospitals, the Royal London in Whitechapel, St Bartholomew's, Whipps Cross, Newham and Mile End, serving more than 2.5 million people and caring for over 7,000 people a day. The Royal London is the major trauma centre for north east London and Essex and the home of London's Air Ambulance. Speaking up, compassionate leadership and patient-safety behaviour are the recurring targets in clinical populations, which is why behaviour change training for NHS trusts is designed around rehearsal rather than briefing.
- Canary Wharf and the Docklands. The banking, Big-4 and fintech population on the Isle of Dogs, covered separately so that neither page repeats the other.
The Behaviours East London Clients Ask Us to Move
Four targets come up repeatedly across those populations. Each is specific enough to rehearse, which is the test we apply before agreeing a brief.
None of them is a knowledge problem. People generally know what good looks like. What they have never done is practise the moment under pressure, with a real person in front of them and a real cost to getting it wrong.
- Speaking up. The moment when the cost of raising a concern feels immediate and the cost of silence feels abstract. Our production The Death of Jane Doe, recognised by the CorpComms Awards, rehearses exactly these moments.
- Intervening in harassment. The decision a bystander makes in real time, rather than the policy they were emailed. The Accused, recognised by the Goldsmiths Public Engagement Award, is built around it.
- The difficult performance conversation. Its surface changes by sector: the principal investigator whose research is excellent and whose leadership is not, the consultant whose clinical work is strong and whose teamwork is fragile, the founding engineer whose behaviour costs the team. The structure underneath is the same, and it is rehearsable.
- Working across organisational boundaries. East London forces it more than most places. Hospital teams work with university researchers, campuses share a site with broadcasters and museums, councils deliver with NHS and voluntary sector partners. The skill is leading people over whom you hold no formal authority.
How an East London Programme Is Built
The method does not change by postcode. What changes is the material inside it.
Work starts with a diagnostic, usually three to four weeks: interviews, observation of routine work, and a structured analysis of the target behaviour using the COM-B model from the Behaviour Change Wheel (Michie, van Stralen and West, 2011, Implementation Science 6:42). COM-B asks what makes the behaviour hard rather than what people do not know: capability, opportunity or motivation. Most training briefs arrive framed as a capability gap when the real constraint is opportunity, and getting that wrong wastes the whole programme.
From the diagnostic comes a scripted scenario, written for the population and performed by professional actors. Delivery is a rehearsal cycle rather than a presentation: run the scenario, debrief the behaviour that was observed, run it again with the learning applied, debrief again. The repetition is what shifts behaviour; the scenario alone does not. Embedding then runs roughly six weeks, with structured follow-through, accountability at leadership level, and adjustment of the workplace conditions that make the target behaviour hard.
Measurement is at Kirkpatrick Level 3 as a minimum: observed behaviour in real work after the programme, not a satisfaction score collected in the room. The measurement design is agreed during the diagnostic, before anything is scripted, so the target is fixed in advance rather than chosen afterwards to suit the result.
What Changes on 30 October 2026
Acas states that employers have had a legal duty to take reasonable steps to prevent sexual harassment of their workers since 26 October 2024, and that from 30 October 2026 employers will be liable unless they have taken all reasonable steps. Acas also states that the duty covers harassment by other people at work and by third parties such as customers and clients.
That third-party element lands hard in this part of London. Public-facing operations are dense here: the Westfield Stratford City and Olympic Park visitor economy, Shoreditch, where Hackney Council counts over 150 cultural venues alongside its hospitality trade, and the clinical front doors across the five Barts Health sites. Third-party harassment is not an edge case in those settings. It is the normal case.
An awareness module is a thin answer to a reasonable steps test, and thinner still against the all reasonable steps standard that arrives on 30 October 2026. Rehearsed intervention, where people practise the moment and the practice is documented, produces both the capability and an evidence trail. That is the argument for harassment prevention training built on rehearsal rather than on slides.
Starting an East London Engagement
The first step is a 30-minute working conversation. Bring the behaviour you want to move rather than a training specification. If a different provider would serve you better, we will say so. For organisations closer to our own postcode there is a separate north London guide, and all our London location guides are listed in one place.
A typical engagement runs about thirteen weeks end to end: three weeks diagnostic, two weeks design, delivery, six weeks embedding, then measurement. University and NHS procurement through frameworks can add four to eight weeks before that clock starts, so it is worth beginning the internal conversation early. Programmes are priced per engagement.
Sidestream was founded by Ben Laumann, an organisational psychologist and theatre director, and Sebastian Flack, a systemic coach and supervisor working across the German-speaking market. The approach combines immersive theatre productions performed by professional actors with the COM-B behaviour change framework, drawing on Sidestream's own academic work, building on behaviour-change research at UCL, Cambridge and Bocconi. Verified client work includes the Metropolitan Police, UCL, the University of Cambridge, Bocconi, Goldsmiths, Imperial College London, the Innocence Project, TCS, WISE and HM Courts and Tribunals, alongside recognition for The Death of Jane Doe, The Accused and Top of the Cops.
Behaviour Change Consultancy in East London: In Short
Sidestream is a behaviour change consultancy that delivers in east London without being based there. The office is at 58 Malden Road, NW5, and Kentish Town West sits on the Mildmay line that runs directly to Dalston, Hackney, Hackney Wick and Stratford. The method fits five populations here: the Shoreditch tech and creative cluster, Stratford and the East Bank institutions, Queen Mary University of London, the Barts Health hospitals, and the Docklands. Programmes are diagnosed with COM-B, rehearsed with professional actors, embedded over six weeks and measured on observed behaviour.
Frequently Asked Questions
Is Sidestream based in east London?
No. Sidestream is based at 58 Malden Road, London NW5 3HG, on the Kentish Town and Chalk Farm boundary, which is north London. We deliver in east London rather than sitting in it, and we would rather say so than imply otherwise. Kentish Town West is a Mildmay line station, and Transport for London lists Dalston Kingsland, Hackney Central, Homerton, Hackney Wick and Stratford among the destinations served directly from it.
Which east London areas and organisations does this cover?
Shoreditch and the Old Street tech and creative cluster, Stratford with the Queen Elizabeth Olympic Park and its East Bank institutions, Queen Mary University of London at Mile End and Whitechapel, and the five hospitals of Barts Health NHS Trust. Canary Wharf and the Docklands are covered in a separate guide. Councils, regulators and public bodies in the same area are worked with on the same basis.
Do you claim local knowledge of these boroughs?
No, and you should be sceptical of consultancies that do. What we bring is a method: a diagnosed behaviour, a scenario written for your population, professional actors, rehearsal rather than presentation, and measurement of observed behaviour. The local knowledge that actually shapes the design comes out of the diagnostic, from your own people and your own situations, not from a provider's postcode.
How does the October 2026 harassment duty affect east London employers?
Acas states that from 30 October 2026 employers will be liable unless they have taken all reasonable steps to prevent sexual harassment, tightened from the reasonable steps duty in force since 26 October 2024, and that the duty covers third parties such as customers and clients. In the public-facing retail, visitor, hospitality and clinical operations that are dense in east London, third-party exposure is routine rather than exceptional.
How do you know an east London programme worked?
Kirkpatrick Level 3 is the minimum standard: observed behaviour in real work after the programme, not a satisfaction score collected in the room. Level 4 measures are used where the brief allows, such as speak-up rates, escalation behaviour, retention or patient-experience indicators. The measurement design is agreed during the diagnostic, before anything is scripted, so the target is fixed in advance.
How does an east London engagement start?
With a 30-minute working conversation, in person where that suits you. Bring the specific behaviour you want to move rather than a training brief. If Sidestream is not the right fit, we will say so. A typical cycle then runs about thirteen weeks: diagnostic, design, delivery, embedding, measurement. Programmes are priced per engagement.
Related Sidestream Guides
- our Canary Wharf and Docklands guide
- north London guide
- all our London location guides
- the COM-B model
- behaviour change training for NHS trusts
- Academic leadership development
- harassment prevention training built on rehearsal
Sources: Queen Mary University of London: About (Mile End Road, London E1 4NS; Whitechapel and Charterhouse Square sites) · Queen Mary University of London: Facts and figures (32,000+ students, c.5,700 staff, five London campuses, Russell Group, 91% state school, 46% first generation) · Queen Mary University of London: Faculty of Medicine and Dentistry (formed from St Bartholomew's and The London Hospital medical colleges; Mile End, Whitechapel, Charterhouse Square) · Barts Health NHS Trust: About us (five hospitals, more than 2.5 million people served, over 7,000 people cared for a day) · Barts Health NHS Trust: The Royal London (Whitechapel, Tower Hamlets; major trauma centre for north east London and Essex; home of London's Air Ambulance) · Hackney Council: Planning for the future of Shoreditch (major employment area, over 40,000 jobs in over 4,000 businesses, home of Tech City, over 150 cultural venues) · GOV.UK: PM announces £50m funding to regenerate Old Street roundabout, 6 December 2012 (over 1,300 companies in the cluster) · Queen Elizabeth Olympic Park: About us (560 acres; London Legacy Development Corporation formed April 2012) · Queen Elizabeth Olympic Park: What is East Bank (BBC Music Studios, Sadler's Wells East, London College of Fashion UAL with 6,500 students, UCL East c.4,000 students, two V&A sites, over £600m from the Mayor of London) · UCL: About UCL East (One Pool Street opened autumn 2022, Marshgate autumn 2023, Queen Elizabeth Olympic Park, Stratford) · Queen Elizabeth Olympic Park: Stratford (Westfield Stratford City, University of East London, Birkbeck; Stratford International and Stratford regional stations) · Financial Conduct Authority: Contact us (head office, 12 Endeavour Square, London E20 1JN) · Transport for London: Kentish Town West rail station (Mildmay line; direct destinations include Dalston Kingsland, Hackney Central, Homerton, Hackney Wick and Stratford) · Transport for London: Whitechapel station (Elizabeth line, District line, Hammersmith & City line, Windrush line) · Acas: Preventing sexual harassment (reasonable steps duty since 26 October 2024; 'all reasonable steps' from 30 October 2026; covers third parties such as customers and clients) · Michie, van Stralen and West (2011), The behaviour change wheel: a new method for characterising and designing behaviour change interventions, Implementation Science 6:42 (COM-B)