The Speedwell Street project in Somerville is a standout example of how multi-disciplinary collaboration can solve complex infrastructure challenges in industrial development. Delivered by KLM Spatial’s Engineering, Major Projects, Surveying, and Town Planning teams, the project tackled a critical stormwater issue on a site with a history of flooding impacts on downstream properties.
As part of the planning permit requirements for this commercial/industrial estate, the project needed to meet stringent stormwater treatment and detention conditions. Working in partnership with SPEL, KLM Spatial developed and implemented a forward-thinking, space-efficient solution that aligned with both development goals and environmental standards.
Key Civil Engineering Features:
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SPEL Stormceptor: Combined Gross Pollutant Trap (GPT) and triple interceptor pit to treat runoff at the source
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SPEL Hydrosystem: A compact, trafficable alternative to a rain garden, maximising land efficiency
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2ML (2,000m³) of underground detention: Provided via a modular SPEL Chamber system to manage onsite flows
Key Project Outcomes:
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Eliminated the need for ANCOLD assessment
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Reduced overall delivery costs through smarter design
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Improved safety by avoiding steep retaining walls and open waterways
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Maximised trafficable and saleable hardstand areas for the client
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Delivered through a single agreement with SPEL for supply, installation, and maintenance
This project is a great example of how KLM Spatial’s integrated approach — combining technical engineering, strategic planning, and delivery oversight — results in streamlined approvals, high-performance infrastructure, and tangible long-term value for clients.
The site now benefits from robust, low-maintenance stormwater infrastructure, and the client is thrilled with the outcome.
