Optimize by DesignMMC and DfMA are often used as if they meant the same thing. Both sound technical and both promise better results, but they describe different things. Knowing how they fit together can decide whether a project succeeds.
MMC: what you build with
Modern Methods of Construction (MMC) is an umbrella term for techniques and systems intended to build faster, cleaner, more consistently and more sustainably than traditional construction. It covers:
- Offsite manufacture and modular systems
- Panelised and hybrid assemblies
- Precast components
- Timber and steel frames
- Digital tools and data-driven workflows
MMC is about what goes into a building and how that differs from conventional construction. There is more in what MMC means in architecture.
DfMA: how you design for it
Design for Manufacture and Assembly (DfMA) is a way of designing. It is neither a system nor a product. It asks architects and engineers to think like manufacturers:
- Use fewer bespoke components
- Design for repetition
- Design better connections
- Make assembly on site easier
- Remove complexity that serves no purpose
The approach comes from aerospace and automotive manufacturing. Applied to buildings, it improves buildability, reliability, cost control and carbon performance.
| MMC | DfMA | |
|---|---|---|
| Stands for | Modern Methods of Construction | Design for Manufacture and Assembly |
| What it is | Innovative construction systems | A design approach |
| Its role | The materials, components and methods | The thinking that makes MMC work |
Put simply, MMC is the kit and DfMA is the logic for using it. We work with both, and we design for the chosen system from day one. That means tighter coordination, fewer surprises late on, and buildings that perform as well in use as they do on paper.
Why the distinction matters
MMC is often brought in after the concept design is fixed, when the design is harder to change. That causes:
- Mismatches between the system and the design
- Redesigns that add cost and time
- Frustrated contractors and a disconnected supply chain
When DfMA principles guide the early design, MMC helps the project instead of complicating it. Our piece on PAS 8700 and the MMC adviser covers the new standard.
Designing for delivery
We treat DfMA as a principle that runs through the whole design, rather than a one-off technique. Good buildings come from creativity and precision working together. In practice that means:
- Treating manufacturing constraints as part of the design
- Working with known, tested systems
- Designing buildings that are beautiful, buildable and fit for purpose
Modern methods are as much about designing well from the start as about building quickly. More in a better way to design.
Optimize by Design
Production design for steel, timber and modular systems, drawn the way factories build.
