Quick summary
- The drawings for a commercial or industrial building in the GTA are often the original permit set plus decades of undocumented changes. Clear heights, column grids, slabs and overhead services are where they usually part ways with the building.
- GTA industrial asking rents have fallen for eleven straight quarters while space keeps being absorbed. A lot of existing buildings are changing hands and changing use, and every one of those moves starts with someone trusting a set of drawings.
- A virtual tour shows you a building. A measured scan tells you whether your racking, equipment or fit-out will fit in it. For a fit-out, you need the second one.
- Measure before you price. A scan costs far less than a re-quote, a redesign, or equipment that arrives and does not fit.
Why more existing buildings are being scanned in the GTA
The numbers explain it. According to CBRE’s Toronto industrial figures for Q2 2026, availability held at 5.0% for a third consecutive quarter, the region recorded 1.3 million square feet of net absorption for its fourth straight positive quarter, and asking rents fell for an eleventh consecutive quarter.
Cresa’s Q1 2026 GTA industrial report describes the same market from the tenant’s side: businesses “prioritizing consolidation into more efficient facilities,” with others using current conditions “to pursue renewals, relocations, or ownership opportunities,” while new supply slows.
Put those together and you get a market where much of the activity is occupiers moving into, consolidating into, or buying buildings that already exist. An existing building comes with existing drawings. That is where the trouble starts.
What the drawings usually get wrong
The drawing set a landlord hands over for a GTA industrial or commercial building is often the permit set from when it was built, plus whatever later tenants documented, if anyone documented anything. The gaps tend to fall in the same places.
Clear height
This is the number that decides how high you can rack, and therefore how much you can store. Drawings usually show the design clear height, not what is left under the lowest joist, sprinkler main or duct after decades of additions. It only takes one low obstruction in the wrong bay to change a racking plan.
Column grid
A column that sits off its gridline changes every aisle that depends on it. Racking layouts, equipment footprints and forklift clearances are all planned from the grid, so a grid you cannot trust is a layout you cannot trust.
The slab
High-bay racking and automated equipment need a floor within a flatness and levelness tolerance. An older slab may no longer be within the tolerance it was poured to, and nothing on a drawing will tell you. We cover this in more detail in our guide to floor flatness scanning.
Openings and dock doors
Doors get added, closed up and resized as tenants come and go. The loading plan on paper and the loading plan in the building are often two different things.
Offices, mezzanines and partitions
Fit-outs from previous tenants that were built, altered or partly removed without the drawings being updated.
Overhead services
Sprinkler mains, electrical runs, conduit and ductwork are often undocumented, and they are the elements most likely to clash with a new layout, because they sit exactly where racking and equipment want to go.
A virtual tour is not a measurement
Search for commercial property scanning in Toronto and you will find two different products under the same name.
Virtual tours are built for marketing
One is the immersive virtual tour, built for leasing and marketing. It lets a broker show a space to someone who cannot visit, and it does that job well. It is not built to tell you whether a rack of a given height clears the sprinkler main in a particular bay, or whether the new line fits between two columns. We have written about where tour cameras fall short in warehouses separately.
Laser scanning is built for measurement
The other is measurement-grade capture. Our crews use terrestrial laser scanners from Leica and FARO where precision matters, and mobile SLAM capture where a large floorplate needs to be covered quickly. The output is a registered point cloud you can measure from, and the drawings or model built from it.
If you are marketing a vacancy, a tour may be all you need. If you are pricing a fit-out, installing racking or planning equipment, you need measurements. Ask which one is being quoted.
What we capture on a commercial or industrial building
| What we measure | Why it matters | What you receive |
|---|---|---|
| Clear heights across the floor | Racking height and storage capacity | Point cloud and sections |
| Column grid and spacing | Racking layout, equipment placement, aisle widths | 2D floor plans (Scan-to-CAD) |
| Slab levels and flatness | High-bay racking and automated equipment | Floor flatness and deviation analysis |
| Openings and dock doors | Loading, logistics and egress | Floor plans and elevations |
| Overhead services | Clashes with the new layout | Scan-to-BIM model in Revit, LOD 200 to 400 |
| Rentable area | Lease negotiation and valuation | BOMA area calculations |
The registered point cloud is delivered within 48 hours of leaving site. Scan-to-CAD drawings or a Revit model follow in one to three weeks, depending on level of development and floor area. If rentable area is part of the question, our guide to the BOMA 2025 industrial standard explains how loading docks and yards are now measured.
Scanning across the GTA
Commercial and industrial work in this region is not concentrated downtown. We scan across the Greater Toronto Area: Mississauga, Brampton and Oakville to the west, Vaughan and Markham to the north, and Etobicoke, North York and Scarborough within the city. Our crews are typically on site within one to three days of booking, and the timelines above apply wherever the building is.
Large distribution buildings
For a large distribution building, the usual approach is to combine methods: terrestrial scans where tolerances are tight, such as around racking zones, docks and equipment, and mobile capture for open floor area. It keeps time on site down without giving up accuracy where it matters.
Field note: a food processing plant that did not line up
One of our industrial jobs in Etobicoke, in Toronto’s west end, shows how this plays out in practice. The client is private, so no names, but the building was a large food processing plant in flux: processes were changing, and the owner’s team was working with an engineering consulting firm on a retrofit designed around them.
The complaint: the scan did not match the columns
We scanned the plant inside and out and delivered an as-built Scan-to-BIM model. The first question back from the project team was why our point cloud did not sit properly on the plans everyone was working from. The columns in the scan and the columns on the drawings did not line up, and the natural assumption was that the scan was wrong.
What we found
It was not the scan. The building dates from the early 1980s, and its internal as-built plans were drawn perfectly aligned and symmetrical to the survey data. The building itself was not. Two things had pulled the drawings and the building apart: the original drafting showed a neat, idealized structure rather than the one that was built, and decades of later construction had been layered over it.
When we merged the scan data with the model, those inconsistencies showed up column by column.
What it changed
The misalignment fed straight into the retrofit and revamp design, which now had to work from where the columns actually are rather than where the plans put them. It changed the industrial layout. It also changed the plant’s space and asset records, including its BOMA area measurements, because anything tied to an idealized grid was tied to a building that does not exist.
And it changed how information moved between the people on the project. The owner’s team, the consulting engineers, the capital project managers, the field engineers and the construction crews had all been working, in good faith, from the same plans. Once the measured model became the reference, everyone was working from one source that matched the building, and that is what made the collaboration between them work.
What we tell clients now
If your plans are older than the last few renovations, assume they describe the building someone intended, not the one you own. Merge a scan against them before anyone designs a retrofit, lays out equipment or prices a fit-out. Finding the misalignment at that stage costs a conversation. Finding it during construction costs far more.
Questions to answer before you price a fit-out
- When were the drawings last updated, and by whom?
- What clear height does your racking or equipment need, and is that height available everywhere it has to be?
- Does the new layout depend on the columns being where the drawings say they are?
- Will high-bay racking or automated equipment need the slab within a flatness tolerance?
- What overhead services have been added since the building was built?
- Does the lease depend on rentable area measured to a BOMA standard?
If you cannot answer two or more of these with confidence, the drawings are not a safe basis for pricing.
Frequently asked questions
What is commercial property scanning?
It is the measured capture of an existing commercial or industrial building using laser scanners, producing a point cloud and, from it, floor plans, sections, elevations or a Revit model. It is used to plan fit-outs, racking, equipment installation and renovations, and to measure rentable area. It is different from a virtual tour, which is built for marketing rather than measurement.
Is a virtual tour enough for a warehouse fit-out?
Usually not. A tour is good for showing a space to someone who cannot visit. A fit-out depends on clear heights, column positions, slab condition and overhead services, and those need to be measured, not viewed.
How long does it take to scan a warehouse?
Time on site depends on floor area, how full the building is and whether it is operating while we work. The registered point cloud follows within 48 hours of leaving site, and drawings or a Revit model take one to three weeks depending on level of development and size.
Do you scan commercial buildings outside Toronto?
Yes. We work across the GTA, including Mississauga, Brampton, Oakville, Vaughan and Markham, with crews typically on site within one to three days of booking.
Can you measure rentable area to a BOMA standard?
Yes. BOMA area calculations are one of our standard deliverables, and they are produced from the same scan data used for the drawings, so area and layout come from one measured source.
Measure before you price
An existing building is a known quantity only once someone has measured it. Until then, every price, layout and schedule built on the drawings carries the drawings’ mistakes with it.
Our 3D laser scanning services in Toronto page covers the full range of what we capture across the GTA. For the deliverables themselves, see as-built documentation, and if your scan needs to tie into a site grid or survey, read what a 3D laser scanning survey actually delivers.
