Scan-to-BIM for Healthcare Facilities

Hospital facilities concentrate every difficulty that makes laser scanning hard: 24/7 occupancy, decades of phased renovation, dense above-ceiling MEP, strict regulatory documentation requirements, and infection control constraints that govern every crew movement. This guide covers what it actually takes to deliver a permit-ready, LOD 300 scan-to-BIM model in an active healthcare facility - from ICRA permitting through COBie asset tagging - and explains why a hospital project costs what it costs.

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Why Hospitals Are the Hardest Buildings to Capture Accurately

The core problem: original construction drawings document design intent, not what was actually built. In a building that gets phased every 3-5 years, those drawings become progressively less reliable. A large share of hospital as-builts are materially inaccurate by the time a renovation team needs them - walls in the wrong place, dropped ceilings at unrecorded heights, MEP systems rerouted and never updated in the record set.

Layered MEP compounds this. A hospital built in 1985, renovated in 1994, re-permitted in 2003, and wing-expanded in 2017 may have four different generations of medical gas piping in the same ceiling plenum. Fire-alarm loops get extended without as-built updates. HVAC ductwork gets rerouted around new structural penetrations. Nurse-call conduit from a system decommissioned in 2008 is still physically present above tile because no one paid to remove it.

Infection control zones add spatial constraints you cannot document with a tape measure. A negative-pressure isolation room, a sterile corridor, or a Class C operating suite has dimensional and configuration requirements that affect renovation design - and those conditions must be captured accurately to protect the design, not approximated.

Dense steel framing and lead-lined walls in imaging suites (CT, MRI, fluoroscopy) and radiation therapy vaults introduce point-cloud noise. Lead-lined gypsum and steel attenuate the scanner’s return signal differently than standard construction materials. In these rooms we pay specific attention to scanner station placement and use overlap from adjacent corridor stations to fill shadow zones rather than relying on a single high-reflectance bounce.

If your facilities team cannot answer “where exactly does the 2-inch medical oxygen main run above OR 3?” without guessing - a laser scan is the only safe answer before you cut drywall. Finding a live medical oxygen main with a sawzall is a catastrophic outcome. Finding it in a point cloud at 2:00 AM during the scanning campaign costs nothing extra.

Explore our scan-to-BIM service capabilities to understand the full scope of what we deliver.

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HCAI / OSHPD Compliance: What Existing-Conditions Documentation Actually Requires

California’s HCAI (Health Care Access and Information, formerly OSHPD) requires verified existing-conditions drawings reviewed by a licensed architect or engineer before any permit submission on Small Flexible Renovation (SFR) and major projects. A tape-measure sketch does not satisfy this requirement. A point-cloud-backed Revit model, reviewed by the engineer of record, does - and HCAI’s SFR pathway accepts BIM-derived existing conditions when submitted in coordination with the project engineer.

The structural documentation standard is explicit: column centerlines, slab thicknesses, and shear-wall locations must be dimensionally verified. Our Trimble X7 - with a range accuracy of 2 mm and range noise under 3 mm at 60 m on 80% albedo targets (per the Trimble X7 datasheet) - gives HCAI reviewers the tolerance they need on structural elements without the ambiguity of interpolated measurements.

Outside California, the documentation burden is no less real:

• Joint Commission Environment of Care surveys require current, accurate life-safety floor plans reflecting actual constructed conditions.
• CMS Conditions of Participation require facilities to maintain documentation sufficient to demonstrate compliance with NFPA 101 and LSC requirements.
• State health department plan reviews in virtually every jurisdiction rely on floor plans and reflected ceiling plans that must match what is actually in the ceiling plenum.

In all of these contexts, a scan-to-BIM model is the highest-accuracy existing-conditions source available. The point cloud is the measurement record.

Documentation depth by project type:

For a full breakdown of LOD decision-making on existing-conditions projects, see LOD 200 vs LOD 300 decisions for existing-conditions models.

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Scanning an Occupied Hospital: Protocols, Scheduling, and ICRA Coordination

ICRA (Infection Control Risk Assessment) is a written permission issued by the hospital’s infection control committee before any construction or invasive activity - including laser scanning. It specifies the class of precautions (Class I through IV), required PPE, containment measures, equipment decontamination standards, and approved work hours (ICRA Matrix). Class II zones (post-acute care, most inpatient floors) require sealed equipment cases, sticky mats at entry and exit points, and equipment wipe-down on every ingress. Class III zones (ICUs, ORs, and higher-risk patient-care areas) require additional precautions appropriate to those environments. Class IV zones (active construction adjacent to immunocompromised patient areas) may require full negative-pressure containment barriers even for scanning access. We obtain the written ICRA permit before the first mobilization on any healthcare project - not as a formality, but because it defines the operational parameters for every subsequent night.

What ICRA compliance actually costs per mobilization night: The $300-$600 per-night figure in the cost section below covers: N95 respirators and spare supply, Tyvek coveralls, sticky-mat rolls placed at zone boundaries (typically 3-4 rolls per entry point per night), HEPA-filter-rated wipe-down solution and lint-free cloths for equipment decontamination, and approximately 15 minutes of crew time per entry/exit cycle for the decontamination protocol itself. On a 4-night campaign with 2-person crews, that adds up to $1,200-$2,400 in hard cost before any labor premium.

Quiet-hour access reality: ORs, ICUs, and procedure rooms are typically only accessible during a narrow window - roughly 11:00 PM to 5:00 AM between shift change and first-case prep. Scheduling a 40,000 sq ft hospital wing realistically spans 3-5 nights of field work even with experienced crews. Attempting to compress that into 1-2 nights by rushing station density will degrade registration quality and require rework.

Instrument selection by zone type:

On large hospital campuses, deploying instruments matched to zone conditions - faster wide-area scanners for open floorplates and main corridors, the Trimble X7 for mechanical spaces, electrical rooms, and any corridor width under 6 feet - is standard practice. Modern terrestrial scanners complete a scan station in under 2 minutes, which means crews minimize dwell time in sensitive areas. Crews are typically two-person teams - one scanning, one managing ICRA protocol at the zone boundary.

Above-ceiling access in hard-lid buildings: Accessible grid ceilings allow ceiling tile removal and replacement during quiet hours with no structural intervention. Hard-lid concrete ceilings - common in 1970s-era hospital construction - require coordinating core drilling with the facilities team before mobilization. Budget an additional $800-$2,400 per wing for access point coordination and patching in hard-lid conditions; the range depends on slab thickness, the number of access cores required per wing, and whether the facilities team handles patching in-house or requires a subcontractor.

Phased scanning and control: When hospital wings cannot be accessed simultaneously (a common scenario in a 4-6 wing campus), all scan campaigns must tie back to common control points set in permanent, accessible locations - typically stairwells and main mechanical rooms. We establish this datum strategy before the first mobilization in a pre-scan meeting with the facilities director. Without shared control, separately scanned wings will not register to each other within acceptable tolerance.

Patient privacy: Terrestrial scanners with panoramic imaging capability can incidentally document patient care areas. We disable or redact imagery in any area where identifiable patients may be present. HIPAA does not govern spatial data directly, but hospital security teams will require a data-handling agreement covering panoramic image storage, transmission, and deletion - we bring that agreement to the pre-scan coordination meeting.

Coordination checklist (minimum 2 weeks pre-mobilization):

• Pre-scan meeting with facilities director, infection control officer, and OR charge nurse
• Written ICRA permit in hand before first night
• Scanner staging area confirmed (away from clean corridors, with power access)
• Ceiling tile removal/replacement labor coordinated with facilities staff (or core drilling plan confirmed for hard-lid areas)
• Data handling agreement signed
• Badge/escort access confirmed for each crew member

See how to prepare your site for a laser scanning campaign for our full site prep checklist.

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Above-Ceiling MEP Coordination: Where Hospitals Get Their Money’s Worth

Healthcare ceiling plenums are the most congested built environments we scan. A standard hospital corridor ceiling can contain 6-8 independent MEP systems within 18 vertical inches of space: structural deck and joists, primary supply ductwork with duct liner, chilled water and hot water piping, medical gas mains (O2, vacuum, nitrogen, medical air), fire-suppression mains and branch drops, electrical conduit bundles, low-voltage data and telecom ladder racks, nurse-call conduit, and BAS/DDC conduit. Every one of these systems must be modeled accurately at LOD 300 before a renovation design team can confidently route a new system or cut through the deck.

Field workflow: Facilities staff remove or prop ceiling tiles in the access grid during quiet hours. Scanner stations are set at floor level with the instrument oriented upward to capture the full 360° plenum geometry. We run multiple stations per ceiling bay to ensure overlap and eliminate shadow zones behind large ductwork. Plenum stations are registered to the concurrent floor-level corridor scan using shared targets placed on top of the ceiling grid before tiles are lifted - this is what keeps the plenum model and architectural model in the same coordinate system.

What gets modeled in the plenum (LOD 300):

• Structural steel deck profile, joists, and any beam penetrations
• Primary and secondary HVAC ductwork with duct liner presence noted
• Chilled water, hot water, condenser water piping (diameter and insulation)
• Medical gas mains: O2, vacuum, medical air, N2, CO2 (pipe diameter, material, zone valve locations)
• Fire suppression mains, branch lines, and sprinkler head rough locations
• Electrical conduit bundles and cable tray runs
• Low-voltage: data/telecom ladder racks, nurse-call conduit, BAS conduit

Deliverable stack: Revit MEP model (linked to the architectural model), Navisworks clash report with screenshots and coordinates for each identified clash, and an annotated reflected ceiling plan (RCP) in DWG format showing existing MEP for the design team’s use.

The ROI case for above-ceiling scanning: On a hospital wing renovation at the LOD 300 plenum scope, a first Navisworks clash run will routinely return 40-120 hard clashes. Of those, a significant share typically involve medical gas or fire suppression systems - piping that demo crews would cut into blind under the original schedule. Resolving those clashes during design, before a single tile comes down, eliminates the exposure entirely. Healthcare field change orders for surprise MEP conflicts in occupied buildings typically run $3,000-$8,000 each in direct cost, plus the indirect cost of unplanned patient-area disruption. Avoiding a fraction of those clashes at a $5,000 average can return multiples of the cost of the above-ceiling scan - which on a 120,000 sq ft wing runs approximately $21,600-$36,000 at benchmark rates.

For detailed guidance on LOD and LOA specifications for plenum models, see above-ceiling LOD modeling for renovation projects.

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Life Safety Floor Plans and Code Compliance Documentation from a Laser Scan

Most hospitals have life-safety drawings that are 10-20 years out of date. The Joint Commission and CMS both require current, accurate life-safety plans on file - and “current” means reflecting actual constructed conditions, not the original permit drawings plus a stack of as-built markups that may or may not have been incorporated.

Our scan-to-BIM workflow produces life-safety floor plans as a direct derivative of the Revit model:

1. Revit architectural model exported to 2D floor plan in DWG and PDF
2. Fire/smoke compartmentation drawn as a separate layer (NFPA 101 zones)
3. Egress paths annotated with measured exit widths
4. Door ratings and hardware schedule linked to door objects in the model
5. Licensed architect reviews and verifies field conditions for submission

Accuracy benchmark - the full chain: Terrestrial scanners produce raw point-cloud noise in the low single-digit millimeter range per individual point. After cloud-to-cloud registration across all stations, we target a registration residual under 3 mm RMS across the full dataset (verified by independent check shots). Revit wall centerlines are placed at the centroid of the scanned wall assembly, introducing a modeling tolerance of ±1-2 mm for a standard 6-inch stud wall. The resulting derived dimension for corridor widths and door rough openings carries a total accumulated error budget of roughly ±5-6 mm - just under ±1/4 inch - in the final floor plan. That is well within the tolerance required for NFPA 101 egress calculations. Under NFPA 101, healthcare treatment-area corridors must be at least 8 ft (96 in.) wide, with a minimum remaining width of 60 in. when wheeled equipment occupies the corridor. Non-treatment-area corridors must be at least 44 in. wide. The ±1/4 inch accuracy of a scan-derived floor plan is more than adequate to confirm compliance with those thresholds.

Deliverable matrix for a life-safety plan engagement:

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Healthcare Scan-to-BIM Cost: Why It Costs More Than an Office Building

A hospital scan-to-BIM project costs 40-70% more per square foot than a comparable office renovation. That premium is structural, not arbitrary.

Cost driver breakdown:

2024-2025 benchmark pricing (US market):

On a 100,000 sq ft hospital renovation with full MEP modeling and life-safety plan extraction, you are looking at a range of roughly $22,000-$38,000 total. On a 280,000 sq ft facility needing all four tiers, budget $105,000-$168,000.

Why offshore-only modeling fails in healthcare: HCAI submittal requires a licensed US architect or engineer to sign off on existing-conditions documentation. WAC delivers the point-cloud-backed model and documentation that the project’s licensed professional uses for that review - US-based QA on medical gas routing and life-safety systems is non-negotiable for patient safety. More practically, QA on a LOD 300 medical gas model requires a modeler or reviewer who has physically seen a hospital ceiling plenum and understands what a 1-inch O2 main looks like vs. a vacuum line vs. a sprinkler branch. Misidentifying a medical gas line in the model is not a coordination inconvenience - it is a potential patient-safety event during demolition.

ROI framing: A single avoided field change order in an occupied hospital - rerouting around a medical gas main discovered in the model during design vs. found in the field during demo - runs $15,000-$50,000 in direct costs, plus the indirect cost of shutting down a patient care area for unplanned work. On a full-facility engagement at the 280,000 sq ft scale, the avoided-clash math compounds across every phased scope.

For a full cost model breakdown, see what scan-to-BIM modeling actually costs.

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Digital Twin for Hospital Facility Management and Asset Tagging

The scan-to-BIM model does not have to be a one-time renovation support tool. For a hospital facilities team managing a multi-million-square-foot campus, a geo-located Revit model with tagged, linked assets gives the FM team something qualitatively different from a CMMS with manually entered equipment locations and no spatial context: every maintainable asset has a coordinate in the building, a linked data record, and a visual reference in the model.

Asset tagging workflow: During the BIM modeling phase in Autodesk Revit, equipment is identified from the point cloud geometry combined with field photos captured during the scan campaign. Each asset receives a unique asset ID, is linked to a COBie-compliant spreadsheet, and is geolocated in the model to within the accuracy of the point cloud (range accuracy: 2 mm; range noise: <3 mm @ 60 m). The COBie export is formatted for direct import into the facility’s CMMS - whether that is IBM Maximo, Archibus, or Autodesk Tandem.

What we tag in a full hospital FM digital twin:

Integration path: The Revit model is exported to Autodesk Tandem, IBM Maximo, or Archibus for work-order-driven FM. The original point cloud is retained as a reference layer - when a renovation team needs to scope future work 5 years from now, they can overlay new design elements against the as-captured cloud rather than re-scanning the entire facility.

Quantified value of asset tagging: A 400-bed hospital facility has approximately 1,200 maintainable assets (AHUs, valves, panels, dampers, and ancillary equipment). Without a tagged BIM model, technicians must physically locate equipment before every PM work order. In a hospital with complex ceiling plenums, finding an AHU or a medical gas zone valve that is not mapped can take 30-90 minutes per event - time spent pulling tiles, walking corridors, and cross-referencing paper equipment logs. FM teams commonly report average locate times falling significantly after implementing a geo-located asset model, with ceiling-space equipment that once required 45-60 minutes to locate often found in under 10 minutes. Across roughly 8 PM work orders per week involving ceiling-space equipment, that kind of reduction translates to approximately 5+ hours per week recovered. At a loaded FM labor rate of $45-$65/hour, that represents $250-$360 per week in direct labor recovery, or $13,000-$18,700 in year one.

For guidance on specifying FM handover requirements in your owner-contractor agreement, see how to specify a digital twin handover in owner contracts.

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Medical Office and Tenant Improvement As-Built Drawings

Medical office buildings (MOBs) - radiology suites, infusion centers, specialty clinics, surgery centers moving into shell space - have their own as-built survey requirements that sit between a simple commercial TI and a full acute-care hospital scan.

Typical MOB TI scope:

• Architectural as-built: walls, doors, columns, slab-to-slab heights, finished floor elevations
• Plumbing rough-in: floor drain locations, wall stub-out heights and dimensions, cleanout access
• Electrical: panel locations, available capacity (from data plates and visual inspection), branch circuit directions
• HVAC: supply and return diffuser locations, exposed equipment CFM data plates, duct routing in open-ceiling areas

Accuracy for TI permit: ±1/4 inch on room dimensions and door rough openings - this is what architects need to dimension a permit set with confidence. Tape-measure surveys of existing conditions are a real problem here: a manual survey with a 25-foot tape across a room with oblique walls, column enclosures, and multiple jogs routinely accumulates ±1/2 to 1 inch of error from compounded measuring and transcription variance. In a radiology suite with lead shielding requirements, that dimensional tolerance is genuinely consequential - an error in a shielded wall’s centerline can require RFI responses and redesign before the demo contractor can proceed, adding cost and schedule that a scan-derived as-built eliminates entirely.

Right-sizing the deliverable: For MOB TI scopes under 5,000 sq ft, a 2D CAD as-built extracted from the point cloud - no full Revit model - often satisfies the design team’s needs at meaningfully lower cost. A 3,000 sq ft infusion center TI does not need a federated Revit model; it needs accurate floor plans, one reflected ceiling plan, and plumbing rough-in locations in DWG format. We scope to what the permit set actually requires.

For TI-specific as-built guidance, see as-built drawings for tenant improvement projects.

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How to Scope and Specify a Hospital Scan-to-BIM Project

The single biggest source of misaligned expectations on healthcare scan-to-BIM projects is an underspecified scope. A quote that says “scan and model the hospital” is not a scope. Here is how to build a specification that produces comparable bids and defensible deliverables.

Scope definition checklist:

1. Define floors and wings in scope with square footage per area
2. Specify LOD per discipline (Architectural LOD 300, Structural LOD 300, MEP LOD 300 or 350)
3. Confirm above-ceiling access conditions: accessible grid ceiling vs. hard-lid (hard-lid requires coring or access panels - price separately at $800-$2,400 per wing)
4. Identify ICRA class for each zone in scope
5. Define deliverable format: Revit version, linked vs. federated model, COBie export required or not
6. Confirm whether life-safety plan extraction is in scope
7. Clarify HCAI/state submission requirements and whether a US licensed professional sign-off is required

Vetting your scanning vendor:

• Do they carry healthcare-facility general liability and E&O insurance at limits appropriate for an active patient care environment?
• Have they submitted existing-conditions documentation to HCAI before - not just scanned a hospital, but navigated the actual permit pathway?
• Do they work with licensed professionals for projects that require professional sign-off on the existing-conditions documentation?
• How do they handle PHI-adjacent data? What is their panoramic imagery storage, access, and deletion policy?

Red flags in a bid response:

• No mention of ICRA protocols or infection control coordination
• A single daytime mobilization proposed for an active hospital
• Offshore-only modeling with no US-based QA step on medical gas or life-safety systems
• Registration accuracy not specified or qualified

RFP language to include verbatim:

“Point cloud accuracy ≤3 mm RMS after registration, verified by independent check shots at minimum 10 locations distributed across the project area. MEP model to LOD 300 per the BIMForum LOD Specification, with above-ceiling discipline separation in Revit by system type.”

For a complete vendor evaluation framework, see questions to ask before hiring a scan-to-BIM company and specifying deliverables in your laser scanning contract.

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FAQ

Can you laser scan an occupied hospital without shutting down patient care areas?

Yes - with proper ICRA planning, night-shift or off-hours access, and sealed equipment protocols. Modern terrestrial scanners complete a scan station in under 2 minutes, which means crews minimize time in any sensitive area. A typical 40,000 sq ft hospital wing is captured over 3-5 nights working 11:00 PM to 5:00 AM. General inpatient corridors (ICRA Class II) can often be scanned with minimal disruption using sticky-mat entry protocols and wiped-down equipment. ORs and ICUs (Class III/IV) require coordination with the OR charge nurse and infection control officer, a written ICRA permit specifying allowed work hours and PPE requirements, and in some cases a hospital-assigned escort. Active ICU and OR scanning requires a vendor who carries genuine ICRA experience, not just scanning experience - meaning established protocols, not improvised ones.

What LOD is required for a hospital renovation Revit model submitted to HCAI?

HCAI does not mandate a specific LOD by number, but the practical standard for permit-support models is LOD 300 architectural and LOD 300 for MEP systems in the area of work. In California SFR submittals, HCAI reviewers focus their technical scrutiny on: medical gas distribution and zone valve locations, fire suppression mains and branch coverage, structural penetrations and shear-wall conditions, and egress-affecting architectural elements. These systems need to be at LOD 300 - modeled to actual size, shape, and location - because reviewers must confirm that proposed new work will not conflict with them. Secondary systems (low-voltage data conduit, BAS wiring, nurse-call in areas outside the renovation scope) can carry LOD 200 in most SFR submittals without triggering a reviewer comment. LOD 200 is acceptable at programming and feasibility phases when dimensional accuracy is less critical. The licensed architect or engineer reviewing the existing-conditions drawings is professionally responsible for the accuracy claim - which is why point-cloud-backed documentation at the Trimble X7’s instrument-grade accuracy (range accuracy: 2 mm; range noise: <3 mm @ 60 m) is the appropriate foundation, not scaled measurements from a tape.

Why does scan-to-BIM for a hospital cost so much more than for an office building?

Three compounding factors drive the premium. First, access restrictions force night and off-hours field work - field labor at 11:00 PM carries a 20-30% premium over standard day rates. Second, ICRA compliance adds real cost: $300-$600 per mobilization night for N95s, Tyvek coveralls, sticky mats, HEPA wipe-down solution, and 15-minute decontamination cycles per entry/exit. Third, above-ceiling MEP modeling at LOD 300 in a hospital plenum requires 3-5x more modeling hours per square foot than a shell-and-core office ceiling with a single HVAC duct run. The benchmark pricing table in the cost section above reflects 2024-2025 market rates with those factors fully loaded.

What is an ICRA permit and why does my scanning vendor need one?

ICRA - Infection Control Risk Assessment - is a written permission issued by the hospital’s infection control committee before any construction or invasive activity in a patient care environment, including laser scanning. It specifies the precaution class (I through IV), required PPE, containment measures, approved work hours, and equipment decontamination requirements. A scanning vendor operating in an active hospital without an ICRA permit is violating hospital policy and creating real airborne particle risk for immunocompromised patients. On a healthcare project, we ensure the written ICRA permit is in hand before any crew member enters the building with equipment. We coordinate with the infection control officer directly and follow the permit requirements to the letter.

Can a laser-scan-derived floor plan be used as a life-safety drawing for a Joint Commission survey?

Yes, with proper professional sign-off. The raw Revit output is the most accurate existing-conditions source available for a licensed architect to review and verify. Scan-derived plans are actually preferred for Joint Commission survey prep over legacy CAD files because they reflect what is physically built, not what was designed in 1997 and last updated in a 2004 permit markup. The workflow is: scan campaign → Revit existing-conditions model → 2D plan extraction with fire/smoke compartmentation and egress annotation → licensed architect field-verification of any ambiguous conditions → submission for review. This path produces a complete life-safety plan set - reviewed against actual field conditions - within industry-standard turnaround times, with submissions accepted by accreditation bodies based on the accuracy and completeness of the scan-derived existing-conditions documentation.

What is included in a hospital digital twin for facilities management?

A healthcare FM digital twin built on scan-to-BIM includes: a geo-located Revit model with tagged assets linked to unique equipment IDs, a COBie-compliant spreadsheet formatted for CMMS import, medical gas zone valve locations with zone-served documentation, AHU schedules with filter size and maintenance interval data, electrical panel schedules with feeder and circuit data, fire damper locations with access panel coordinates, and the point cloud retained as a spatial reference layer for future renovation scope. Integration paths we support: Autodesk Tandem, IBM Maximo, and Archibus - all of which can consume a COBie export from Revit without custom data transformation. This is distinct from a Matterport-style walkthrough model, which is visual-only with no structured asset data and no parametric geometry.

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Ready to Scope Your Hospital Scan-to-BIM Project?

Tell us the building square footage, number of floors, access constraints (active ORs, ICU, ICRA class by zone), and whether you need HCAI or state-submission support. We will return a detailed scope and fixed-fee proposal within 48 hours.

Our scope ranges from single-floor MOB tenant improvements to large acute-care facilities with multi-night phased access, and we follow full ICRA protocols on healthcare projects. We deploy the Trimble X7 as our primary terrestrial scanner - with a range accuracy of 2 mm and range noise under 3 mm at 60 m - and handheld scanners for detailed, parts, and reverse-engineering work, with instrument selection matched to your specific zone conditions. Every deliverable is QA’d against the registered point cloud before release.

Get a quote for your healthcare facility scan-to-BIM project - scope, timeline, and fixed fee back to you in 48 hours.