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PAS8700 and the rise of the MMC adviser

Updated: Sep 6

Why a new standard could reshape how we build, and who we need on the team

In construction, most standards refine what already exists. PAS 8700 does something more important. It redefines how Modern Methods of Construction (MMC) are applied and introduces a new, critical role to make it work: the MMC Adviser.


At a time when projects are under pressure to deliver faster, cleaner, and more compliantly, PAS 8700 gives the industry something it’s long needed: a joined-up framework and a person to hold it together.


What Is PAS 8700?

PAS 8700:2025 is the UK’s new Publicly Available Specification for using MMC in housing.


It’s not just a list of systems or products.

It’s a structured approach to applying MMC with purpose, consistency, and accountability, from brief through to handover.


It provides guidance across:

  • Early-stage MMC appraisals

  • Design integration and DfMA principles

  • Procurement and risk alignment

  • Digital and physical coordination

  • Compliance and safety standards


In short: it brings clarity to a space that’s often blurred by buzzwords.



The Role That Changes Everything: The MMC Adviser

One of the most important parts of PAS 8700 is the formal introduction of a new project role: the MMC Adviser.


Not a product rep. Not a consultant bolted on late.

A core team member who bridges the gap between design, delivery, and performance.


The MMC Adviser:

  • Guides clients through system selection

  • Aligns design with manufacturing and installation

  • Reduces late-stage redesign risk

  • Ensures compliance isn’t just met; it’s embedded


At Architecture by Design, we’ve quietly played this role for years.

PAS 8700 simply gives it a name and a framework to go with it.



Why This Matters Now

Far too many MMC projects have failed, not because the systems were wrong, but because they were added too late.


That leads to:

  • System/design mismatches

  • Costly revisions

  • Loss of client confidence

  • Missed sustainability targets


PAS 8700 shifts the focus upstream.

It makes clear that MMC is not a finish-line fix. It’s a starting point and needs the right advice from day one.


How We Apply PAS 8700 at Architecture by Design

We align every stage of our MMC-led projects with the structure PAS 8700 sets out:

  • We assess system options at concept stage

  • We apply DfMA principles across RIBA stages

  • We coordinate with manufacturers, not just specifiers

  • We prioritise buildability, compliance, and client clarity, always


The result is not just projects that perform better.

It’s projects that run smoother, de-risk decision-making, and deliver with confidence.



Thinking about MMC for your next project?


We can help you go beyond compliance and build a design strategy that’s ready for what’s next.

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