Cowen+Partners has secured planning approval for Morden Wharf, a 1,500-home residential development on the Greenwich Peninsula in east London. The scheme, one of the larger housing projects to advance through London's planning system in recent months, will transform a brownfield site along the Thames into a mixed-use neighborhood.
The approval, however, came at a cost. The final version of the scheme includes a lower proportion of affordable housing than the developer originally proposed — a concession that has become a familiar feature of major London planning decisions.
The affordable housing trade-off
London's planning framework, shaped by the London Plan and borough-level policies, generally sets a strategic target for affordable housing in large developments. Developers are typically expected to demonstrate, through viability assessments, that their projects can sustain a given level of affordable provision while remaining financially deliverable. When those assessments indicate that a scheme cannot support the target proportion, local planning authorities face a binary choice: approve with reduced affordability, or risk losing the development altogether.
Morden Wharf appears to follow this well-established pattern. The Greenwich Peninsula has seen sustained development pressure over the past decade, with several large schemes reshaping the area's skyline and demographics. The peninsula's proximity to central London, combined with its industrial heritage and relatively large parcels of developable land, has made it a focal point for housing delivery. Yet the same market dynamics that attract investment also complicate affordability. High land values and construction costs create tension between the volume of homes a site can deliver and the share of those homes that can be offered below market rate.
The reduction in affordable housing at Morden Wharf is unlikely to be unique to this project. Across London, viability negotiations have repeatedly resulted in affordable allocations falling short of policy targets. Critics of the viability assessment process argue that it structurally favors developers by allowing assumptions about costs and revenues that minimize the apparent capacity for affordable provision. Proponents counter that without flexibility, marginal schemes would simply not proceed, and the homes — affordable or otherwise — would not be built.
A peninsula in transition
The Greenwich Peninsula's transformation has been underway for years, anchored by the O2 arena and a succession of residential towers. The area's masterplan envisions a dense, mixed-use district, but delivery has been uneven. Some phases have advanced rapidly; others have stalled or been redesigned in response to shifting market conditions. Morden Wharf's approval adds another layer to this evolving landscape, bringing a substantial number of new units into a corridor that is still defining its character.
For the Royal Borough of Greenwich, the decision reflects a broader balancing act facing London boroughs. Housing delivery targets set by City Hall create pressure to approve large schemes. At the same time, local authorities face scrutiny over whether new development genuinely serves existing communities or primarily caters to higher-income buyers and investors. The affordable housing proportion in any given scheme becomes a proxy for this larger debate.
The Morden Wharf approval also arrives at a moment when construction costs, interest rates, and planning policy are all in flux. Developers across the UK have cited rising build costs as a constraint on affordable delivery, and lenders have grown more cautious about financing large residential schemes. Whether these pressures ease or intensify will shape not only Morden Wharf's delivery timeline but also the affordability outcomes of projects that follow it through the pipeline.
What remains unresolved is whether the current framework — in which affordable housing targets are set high and then negotiated downward on a site-by-site basis — produces better outcomes than a system with lower but more consistently enforced thresholds. The tension between aspiration and deliverability sits at the center of London's housing debate, and Morden Wharf is its latest case study.
With reporting from Architects Journal.
Source · Architects Journal
