West Edinburgh neighbourhood approval: infrastructure and drainage notes for engineers
Reviewed by Joe Ashwell
First reported on The Construction Index
30 Second Briefing
Planning permission has been granted, subject to conditions, for Summix Capital’s Edinburgh Gateway scheme on the 15.5‑acre (6.3ha) former Saica packaging brownfield site on Turnhouse Road, allocated in City Plan 2030. The masterplan delivers 957 homes across seven plots, with 35% affordable, a 172‑bedroom hotel, ground-floor retail and commercial units, and a new station interface with associated access, parking and utilities infrastructure. Landscape proposals include a northern park with a rain garden, wildflower meadows, tree planting, two civic squares and formal play and picnic areas.
Technical Brief
- Seven distinct development plots are defined, separating tenure types and the hotel into discrete parcels.
- Plots 1 and 2 are allocated to private sale housing, influencing phasing and sales-led servicing strategies.
- Build-to-rent stock is concentrated in Plots 3 and 4, likely standardising unit layouts and MEP risers.
- Plots 5 and 6 are reserved for affordable housing, enabling targeted Section 75 and grant funding arrangements.
- Plot 7 is dedicated to the hotel, allowing separate structural grid, servicing and access design from residential blocks.
- A northern park with a rain garden introduces on-plot SuDS, attenuating runoff from the former industrial slab.
- Wildflower meadows, tree planting and two civic squares imply substantial soft–hard landscape interface and root-zone coordination with utilities.
- Project team roles are split: 3DReid (architect/lead designer), Arcadis (project manager), Goodson Associates (structural), Henderson Warnock (building services).
Our Take
Within our 297 Infrastructure stories, relatively few UK schemes combine nearly 1,000 units with a 35% affordable quota, signalling that the Edinburgh Gateway masterplan is likely to be a reference point for Scottish planning authorities weighing density against tenure mix on brownfield land.
The 15.5-acre Saica packaging facility conversion positions Summix Capital in the same brownfield regeneration space as several other Scottish projects in our database, where remediation and existing service connections often compress programme times compared with greenfield urban extensions.
Having Arcadis, Goodson Associates and Henderson Warnock on the Edinburgh Gateway team aligns this scheme with other complex, multi-use UK projects in our coverage, where early integration of civils, structures and building services has been used to de-risk phased delivery across multiple plots.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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