TL;DR:

  • MR is being used productively in AEC for design coordination, on-site model overlay, client visualisation, and MEP clash detection — the use cases with clear ROI are now well-established
  • HoloLens 2 remains the dominant hardware for site use; Apple Vision Pro is gaining traction for design review and client-facing presentations in studio environments
  • The main barrier isn’t the hardware — it’s BIM workflow integration and the coordination overhead of maintaining accurate georeferenced models

Architecture, engineering, and construction was an early target for spatial computing evangelism and an early source of disappointment. The gap between “imagine overlaying the building model on the real site” and actually doing it reliably with 2018-era hardware was large. Projects ran over budget, site workers couldn’t get the devices to work with muddy gloves, and the ROI case was weak.

That’s changed enough that dismissing AEC spatial computing as hype is now the wrong call. Here’s an honest picture of what’s working, what’s still hard, and what the realistic adoption path looks like in 2026.

The Use Cases With Proven ROI

Design Coordination and Clash Detection

The traditional clash detection workflow involves opening Navisworks, generating clash reports, and having coordination meetings where parties look at 2D clash diagrams on screens. It works, but it’s slow and cognitively demanding — understanding why an HVAC duct and a structural beam occupy the same space in 3D is genuinely easier in 3D.

Several architectural practices (Skanska, Bryden Wood, and AECOM have published case studies) now run weekly coordination meetings using HoloLens 2 with BIM models loaded via Trimble XR10 or similar platforms. The meetings are shorter, issues are understood more quickly, and the documentation of decisions is better because everyone agreed on the same spatial reality.

Measured impact: Skanska’s UK projects report 30–40% reduction in coordination meeting time for complex M&E installations when using MR versus traditional clash report review.

On-Site Model Overlay for Installation Guidance

For MEP (mechanical, electrical, plumbing) installation, having a 1:1 overlay of where pipes and conduit should run eliminates a significant source of rework. A tradesperson wearing HoloLens can see exactly where the pipe should be positioned relative to the structure, without reference to printed drawings or a tablet held in one hand.

This works well for:

  • Complex MEP runs in ceiling voids
  • Pre-fabricated module installation
  • Rebar and concrete form positioning

It works less well when:

  • The model isn’t accurate enough (discrepancy between design and as-built reality quickly erodes trust)
  • Precise georeferencing isn’t maintained
  • Workers resist wearing headsets (a real issue in some site cultures)

Client Presentations and Planning Approvals

The planning approval use case is straightforward: place a model of the proposed development in the existing streetscape so planners and neighbours can understand what they’re approving. This is now technically reliable with Apple Vision Pro for studio/boardroom use and is being deployed by firms including Foster + Partners and Grimshaw.

Client presentations benefit similarly — walking through a not-yet-built space at 1:1 scale, with accurate lighting and material representation, consistently outperforms video walkthroughs for client decision-making confidence.

Hardware Reality Check in 2026

HoloLens 2 remains the site-use standard. It’s ruggedised enough for construction environments, has a comfortable all-day weight, and the developer ecosystem is mature. The main limitation is the relatively small field of view (52°), which means the model overlay occupies a window in your vision rather than fully surrounding you. For most site use cases this is fine; for immersive design review it’s limiting.

Microsoft’s roadmap for HoloLens 3 has been opaque, which creates some platform risk for organisations building workflows on HoloLens. Several firms are evaluating Magic Leap 2 (which has better enterprise specifications and a clearer commercial roadmap) as an alternative.

Apple Vision Pro is being used primarily for client-facing and design review applications in studio settings, not for site use. Its MR passthrough is superior to HoloLens for visual quality and field of view, but it’s not a site device — it doesn’t meet construction site PPE requirements and isn’t designed for industrial environments. visionOS’s CAD file handling has improved substantially in visionOS 2.0+, with Autodesk and Trimble releasing native apps.

Android XR devices are entering the market (Samsung’s XR headset announced at Google I/O 2026 is targeting both consumer and professional segments), but AEC software support for these platforms is early-stage.

The Real Barrier: BIM Workflow Integration

Hardware capability is no longer the primary constraint. The harder problem is maintaining a model that’s:

  1. Accurate enough — the model needs to reflect as-built conditions, not just design intent. Discrepancies between the model and what workers find on site rapidly erode confidence in the overlay.
  2. Georeferenced correctly — precise placement of the model in physical space requires survey control points and reliable registration. On large sites with multiple levels, this is non-trivial.
  3. Accessible in real time — workers on site need to see the current model, not a version that was exported last week. Trimble Connect and Autodesk Construction Cloud both support live model access from XR devices, but the workflow discipline to keep models current is an organisational challenge.

Firms getting good results from MR in construction have typically invested in BIM coordination capability first. The MR hardware amplifies good BIM practice; it doesn’t substitute for it.

Getting Started Without Overcommitting

A pragmatic entry path for a medium-sized practice or contractor:

  1. Start with design review in the studio — use Apple Vision Pro or HoloLens 2 for internal design coordination meetings. No site deployment required. This builds familiarity with MR workflows and surfaces your BIM process gaps before they become site problems.

  2. Pilot on a single complex MEP installation — pick a project with a challenging mechanical or electrical installation in a ceiling void. Deploy HoloLens 2 for that specific scope. Measure rework rate and installation time against a comparable baseline.

  3. Invest in a BIM coordination manager — the software is available, the hardware is available. The constraint on most projects is the person who ensures model accuracy, manages georeferencing, and maintains the workflow between design team and site. That person has high leverage.

  4. Evaluate Trimble XR10 — the Trimble hard hat with integrated HoloLens satisfies PPE requirements on most UK construction sites and removes the “headset over safety helmet” awkwardness. It’s expensive but dramatically improves site adoption rates.

The AEC sector is past the experimental phase for spatial computing. It’s in the early adoption phase — where real deployments are delivering real ROI, but significant process investment is required to get there. For firms already running mature BIM workflows, the addition of MR tooling is a natural and increasingly available next step.