Stage 3 – Spatial Coordination and getting the model right.

Stage 3

After developing the concept in Stage 2, we enter Stage 3 – Spatial Coordination and getting the model right. Hopefully, we have firmed up the concept and received constructive feedback from all team members prior to heading into the next stage.

Having a robust concept (As previously mentioned) is so important so that we ‘step off’ into Stage 3 with confidence. We all know that the design process can be fluid, but with fluidity comes uncertainty. Uncertainty can introduce abortive time, delays, and additional unforeseen costs to the project.

What are the main items you consider at Stage 3?

At Stage 3 we are now starting to drill into the main core components for the MEP Services. Most of the main routes and risers should have been identified in Stage 2. Now we are starting to bring all the information together as a coordinated team effort. Major clash detection is dealt with at this stage along with the following key items:

  • Thermal Modelling
  • Confirmation of Plant and Riser Spatial Requirements
  • Maximum Demands for MEP Systems
  • Horizontal Distribution Zones and Spatial Requirments
  • Provisional Builders Works and Openings
  • Designers Risk Assessment

One of the key terms we use during the whole design process is LOD (Level of Detail). This can be best described as what detail you will be showing and how intelligent the model will be at a certain stage. A visual representation of this can be seen below:

pipes showing LOD for spatial coordination
Visual representation of different LOD’s.

Whilst visually you can see changes with the MEP equipment, the intelligence should also change within the model. Not every project is delivered in a 3D environment. However, the LOD approach should remain the same utilizing other methods. Many of us have an understanding of BIM and the process, but some projects are not delivered in that form.

For us, BIM sets out an objective, a process, a path for delivering a project with the maximum amount of coordination, and information possible. With that in mind, shouldn’t every project be delivered ‘in the spirit’ of BIM?

How we approach projects…

Coordinated Services

A centralized process for all engineering services to reduce potential clashes

Measurable Targets

Ability to measure performance targets through intelligent information

Collabrative Team Effort

Creating a collaborative team experience supports project success

Smooth Build Process

Reducing clashes and risks at the design stage supports smooth project delivery

If the project is following a “Design and Build” procurement route, this is typically when the project gets handed to the Main Contractor to complete the design process. The next stage is Technical Design, and we will look at why delivering a strong Stage 3 package plays a critical role for the project programme, cost model, and construction phase.


Do you have a project coming up?

Why not get in touch with our team today to discuss? We offer free and confidential advice and are happy to support projects of all sizes.

Published by Lex Rouzee

A versatile Building Services Engineer with extensive experience within the construction industry, involving principally electrical bias design, installation, commissioning and testing. Significant experience within the building services sector has been gained from progressing through site installation, supervisor and now design and consultancy.

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