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Founded as a response to increasing demand for sustainable and efficient housing solutions. Evolved through strategic partnerships, with leading organizations and authorities in the housing and construction sectors. Developed a robust eco-system for rapid site appraisals, standardized designs, and MMC integration, over several years of collaboration and innovation
Off-Site Homes Alliance
High quality, affordable and high-performance homes, using
the very best and robust off-site technologies. OSHA is now
LIVE and ready to support your housing delivery
programmes ...
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10,000
MMC Affordable Homes
Targeted for delivery with maximum DfMA insight and delivered nationally to our clients
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RPs & LA's collaborating
With a significant number Of strategic stakeholders, to ensure a risk free client delivery
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MMC Technology Options
in full volumetric (CAT 1) and/or panellised (CAT 2) using Timber, LGSF, SIPS & CLT solutions
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Supply Chain Partners
collaborating with OSHA to deliver MMC affordable homes on the national MMC OSHA Framework
OSHA is a project management collaboration established by Ottersbrook in 2019, designed to create a transparent and collaborative MMC (Modern Methods of Construction) ecosystem for housing delivery. Initially involving 23 pioneering Registered Providers, OSHA aimed to enable smarter procurement, minimise risk, and deliver higher quality, more affordable homes using robust MMC technologies. The project is currently paused, pending government decisions on Affordable Homes Programme (AHP) funding and the future policy role of MMC. OSHA’s framework and achievements have positioned it as a key enabler for government housing ambitions, demonstrating the value of integrated, risk-managed, and collaborative approaches within the sector.
The Existing Pioneering Registered Providers
The Collaborative Industry Partners
The OSHA Vision
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The OSHA Challenges
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The Delievery Partners
OSHA Client Deliberations
Initial Client Concerns for Business Case Development
01
Growing concerns over quality of affordable homes for residents, and for asset management control
02
Demand for increased MMC delivery, from Central Government (DLUHC / MHCLG / Homes England)
03
Demand for higher performance in Future Homes Standard, Building Regulations and other areas
04
Lack of MMC technology & transactional process, with limited resources within RP development teams
05
A lack of trust in the new technologies (and new start-ups) with unclear compliance guidance
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No real visibility of collaborative engagement process or guidance for adopting MMC methodology
07
Extremely fragmented sector, with no certainty of direction, control, or stability of supply chain
08
Some support from Government for MMC, but no drivers, task force (de-escalated), or leadership drive
09
Significant challenges around Grenfell disaster, with ongoing MMC debates, leading to MMC inquiry
10
Transactional approach and lack of MMC support within procurement frameworks, creating inertia
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