IN Brief:
- London Square has been appointed to deliver 133 homes at Royal Street in Waterloo.
- Half of the residential provision will be affordable housing.
- Works are expected to start in spring 2027, subject to regulatory approvals.
London Square has been appointed as the first development partner at Royal Street in Waterloo, taking responsibility for 133 new homes within the wider 5.5-acre mixed-use development next to St Thomas’ Hospital. Half of the residential provision will be affordable, with works expected to begin in spring 2027 subject to regulatory approvals.
London Square will deliver the housing alongside commercial and retail space within a masterplan intended to combine healthcare, research, technology, employment, residential accommodation, and public realm. The site forms part of SC1 London’s Health and Life Sciences Innovation District, placing the housing package inside a significantly larger development programme rather than on an isolated residential plot.
The district strategy includes more than one million sq ft of workspace, with ambitions to support up to 6,200 jobs and unlock more than £3bn of investment. Residential development represents only one component of that wider programme, but its inclusion gives Royal Street a different construction and operational mix from a conventional laboratory or office campus.
London Square’s appointment establishes a dedicated delivery route for the housing element. Separating the residential package from the wider commercial programme allows design, procurement, funding, warranty, building-control, and tenure requirements to be developed around housing rather than forcing markedly different asset types through one delivery structure.
The 50% affordable-housing commitment is substantial for a central-London scheme. It also aligns the residential element more closely with the employment strategy around St Thomas’ Hospital and the wider innovation district, where healthcare, research, technical, and public-service workers are expected to form a significant part of the local workforce.
The Royal Street masterplan already has planning permission, secured in 2023, and the wider redevelopment will combine new buildings with commercial and laboratory-enabled floorspace, shops, community uses, and upgraded pedestrian routes. AHMM prepared the consented masterplan, while Stanhope is involved with the Foundation on delivery of the wider commercial-led programme.
Construction logistics will remain one of the principal constraints. The site sits alongside a major operational hospital, established residential streets, central-London transport infrastructure, and heavily used pedestrian and highway routes. Deliveries, lifting operations, temporary works, utility connections, noise, dust, and workforce movements will therefore need to be coordinated across the wider Royal Street programme rather than managed independently by each plot.
That coordination becomes more important where residential and laboratory-enabled buildings progress concurrently. Health and life-sciences accommodation generally carries dense mechanical and electrical servicing, ventilation, resilience, and data requirements, while residential construction has a different rhythm of façade, internal fit-out, fire-safety, and commissioning work. Shared access or infrastructure can become a programme constraint quickly if those separate packages are not sequenced around one another.
London Square will also need to maintain the mixed-tenure requirements through detailed design and procurement. Affordable and private homes may sit within the same development but can carry different funding, nomination, sales, management, and handover arrangements. Those commercial distinctions have to be accommodated without creating unnecessary differences in building performance or construction quality.
The developer has described the proposed neighbourhood as low carbon, placing another requirement on the technical design before construction begins. Embodied carbon, building-services efficiency, façade performance, heating, cooling, ventilation, and operational-energy demand will all influence whether that ambition survives beyond planning language and into the built scheme.
Royal Street also demonstrates the increasingly mixed nature of major urban development. Laboratories, offices, retail, housing, affordable tenure, healthcare neighbours, and public space are being assembled within one relatively compact site, creating more interfaces than would exist on a single-use development. Those interfaces can generate value once the district is operational, but they also increase the amount of coordination required during construction.
London Square expects to have 25 live schemes across the capital during 2026, delivering more than 5,600 homes for sale and rent, including around 40% affordable housing. Royal Street therefore fits an established mixed-tenure workload, although its position inside a health and life-sciences district gives the project a different set of neighbours, infrastructure demands, and programme dependencies.
The spring 2027 target leaves the residential team with detailed design, procurement, approvals, and site-interface work to complete before major construction begins. The appointment settles who will lead the housing element; the next meaningful milestone will be whether the package reaches site in step with the wider Royal Street development rather than becoming a residential scheme waiting for the surrounding district to catch up.
