London's Supported Housing System Is Under Strain: A New Report Tells Us Why

London’s Supported Housing System Is Under Strain: A New Report Tells Us Why

A significant piece of research has just been published, and if you work in mental health, housing, or commissioning in London, it is well worth your time reading it.

The GLA Specialist and Supported Housing Research and Market Development Project Reports represent one of the most thorough reviews of supported housing provision in London in recent years. The findings are the result of extensive reviews carried out across the capital. They are important. They are, in places, uncomfortable reading, and they confirm much of what those of us working in this sector have been saying for a long time.

At Bridge, we are involved in this work and in the wider conversation it reflects. Here is what the report found and what we think needs to happen next.

1. There Are Not Enough Places

The numbers are stark. London has approximately 5,199 supported housing units. Around 7,560 people are placed in supported housing. That is a shortfall of more than 2,300 places.

The consequences of that gap are massive. They mean that people are placed out of their local area, away from their support systems and their communities. They mean delayed hospital discharges, with people remaining in inpatient settings longer than they need to because there is nowhere suitable for them to go. And they mean increased reliance on temporary or unsuitable provision where stopgap solutions cost more and deliver less.

This is not a new problem, but it is a problem that has been allowed to grow without a serious, strategic response.

2. The System Is Reactive, Not Planned

One of the report’s clearest findings is that the supported housing system in London operates reactively rather than strategically. When a need arises, a placement is sought. When a placement can’t be found, something else is arranged. The system responds to emergencies instead of anticipating and preventing them from happening in the first place.

This is reflected in the cost data. Spot-purchased placements (where individual placements are arranged as needed, without longer-term contracts) cost more than £50,000 per person per year on average. Block-contracted provision, where capacity is planned and secured in advance, costs around £18,500. This reactive way of doing things is not just worse for the people it serves. It costs nearly three times as much!

3. The Market Is Broken and Unreliable

Around 58% of provisions are block commissioned. The remaining 42% is delivered through a provider-led, spot-purchase market. That fragmentation creates real problems:

Variation in quality.
Limited oversight.
Safeguarding concerns that are difficult to address when there is no consistent framework across the system.

People with mental health needs deserve consistent, quality support wherever they are placed. What the report describes is a market in which that consistency can’t be guaranteed and where the incentives of a provider-led, reactive system do not always meet the needs of the people it is supposed to serve.

4. Nobody Is Responsible for the Whole System

This finding may be the most significant of all. There is no single body responsible for planning supported housing across health, social care, and housing in London. No one organisation holds the whole picture. No one is accountable for the gaps.

The result is poor coordination, duplication of effort, and people falling through the spaces between systems that were never designed to work together. Health, social care, and housing each have their own priorities, their own commissioning cycles, and their success indicators. When those systems don’t match up (which is often), it is the person in need who pays the price.

5. People Get Stuck at Both Ends

The pathways into and out of supported housing are blocked. Hospital discharges are delayed because suitable housing is not available. Once people are in supported housing, limited move-on options mean many remain far longer than they should. And it’s not because they need that level of support indefinitely, but because there is nowhere for them to go next.

This results in a system that is constrained at both entry and exit. Places are occupied by people who are prepared to leave, but can’t. People who need to come in can’t get a place. The entire system becomes less efficient and the cost to the very people we are trying to help in terms of delayed recovery, lost independence and prolonged hospital stays is significant.

6. The Gaps Fall on the Most Vulnerable

The report identifies a clear, unmet need for people with complex needs and a dual diagnosis, for those in homelessness pathways, and for people requiring step-down support from hospital or longer-term supported living. These are not isolated groups. They are among the most vulnerable people in the city, and the system continues to fail to provide what they need.

7. When It Works, It Works

It is important to say this, though: supported housing works. The evidence shows that when it’s well-designed and well-delivered, it reduces hospital admissions, improves stability and supporst people through the transition to live more independently. The model is sound. The problem isn’t the concept, though; it’s the inconsistency of execution and the absence of a plan for it.

At Bridge Support, we’ve seen this first-hand orselves. The difference between good supported housing and substandard provision is a matter of investment, of oversight, and of a true commitment to outcomes over cost-cutting.

8. Demand Will Keep Growing

NHS pressures are not easing by any stretch of the imagination. The policy direction towards community-based care is not going backwards. Nor is the wider housing shortage in London resolving itself either. Every one of these trends points in the same direction, and that is that demand for supported housing will continue to grow.

That makes the absence of strategic planning not just a current dilemma but an accelerating one. The longer London waits to build a properly planned, properly funded supported housing system, the more expensive and damaging the consequences will be.

What Needs to Happen

The report’s findings point towards a clear set of priorities.

London needs more supported housing — planned and commissioned strategically, not reactively sourced when a crisis happens. It needs a body with genuine system-wide responsibility, with the authority and the remit to plan across health, social care, and housing together. It needs clear move-on pathways so that supported housing can do what it is designed to do, which is provide a stable bridge towards independence, not a permanent alternative to it.

It also needs to stop treating supported housing for people with mental health needs as an afterthought. No housing is being planned or built with this group specifically in mind. That has to change.

At Bridge Support, we’ve been working on these issues for years — supporting people through the pathway from inpatient care back into the community and fighting for a system that treats that journey as something worth planning for. This report backs up what we and many others have been saying.

The question now is whether those with the power to act will read it, take it seriously, and do something about it.