Healthcare facilities demand a higher standard of accuracy than almost any other building type. Renovation projects in active hospitals and medical buildings involve complex existing conditions — clinical environments with strict clearance requirements, mechanical systems that can’t be disrupted, and structural constraints that aren’t always reflected in original drawings. For healthcare architects, engineers, and facility teams throughout Illinois, TWG provides professional 3D laser scanning services that capture those conditions precisely. As a result, project teams get a verified foundation to design and plan from with confidence.

Why Healthcare Facilities Need Accurate Existing Conditions Documentation
Most healthcare buildings carry layered documentation histories. Original construction drawings may be decades old. Moreover, subsequent renovations — new clinical spaces, equipment installations, mechanical upgrades — often modify the building significantly without fully updating the record set. As a result, what an architect or engineer receives as the current building documentation frequently reflects an earlier version of the facility rather than what’s actually there today.
In a standard commercial renovation, that gap creates inconvenience. In a healthcare environment, it creates significant risk. Clinical spaces have precise clearance requirements for equipment, accessibility, and infection control. Mechanical systems serving patient care areas can’t be disrupted without careful coordination. Furthermore, renovation work in active hospitals often happens in phases — occupied clinical areas sit immediately adjacent to construction zones. Every design decision needs accurate information behind it.
Accurate existing conditions documentation removes that uncertainty. Instead of designing from outdated records, project teams start from verified data. That data reflects the facility as it actually exists today — not as it was originally built.

How TWG Documents Healthcare Facilities
TWG uses the Leica RTC360 to laser scan healthcare environments. The scanner captures millions of precise measurements per second — documenting walls, ceilings, structural elements, mechanical systems, and equipment in three dimensions. High-density point cloud data covers even the most complex clinical spaces efficiently and completely.
TWG’s field team works around clinical schedules and operational constraints. Scanning is planned carefully to minimize impact on patient care areas and staff workflows. Depending on the scale of the facility, scanning may take a single day or span multiple coordinated visits. Either way, the goal is always the same — complete, accurate data without disrupting operations.
From that point cloud data, TWG builds coordinated Revit models and CAD drawings. These reflect the facility’s true existing conditions directly. In addition, those deliverables integrate into the planning workflows of architects and engineers — so design work starts from verified data rather than field approximations.
Not sure what point cloud data looks like or how it becomes a usable Revit model? Read our guide on what a point cloud is and how it works.
What TWG Delivers for Healthcare Clients
TWG’s healthcare facility laser scanning services produce deliverables tailored to the specific needs of each project:
- High-density point cloud data — a complete three-dimensional record of the facility captured with the Leica RTC360
- Coordinated Revit models — accurate 3D models of existing clinical spaces, structural elements, and mechanical systems built directly from scan data
- 2D CAD drawings — floor plans, elevations, sections, and reflected ceiling plans derived from verified existing conditions
- Existing conditions documentation — complete building records for renovation planning, engineering evaluation, and facility management
- Elevator shaft and specialty space documentation — precise capture of constrained spaces where dimensional accuracy is critical for equipment installation and code compliance

Common Use Cases for Healthcare Laser Scanning in Illinois
TWG regularly works with healthcare architects, engineers, and facility teams on a range of documentation and renovation planning projects. The most common use cases include:
Hospital renovation planning — capturing accurate existing conditions of clinical floors, patient rooms, and support spaces before renovation design begins. Accurate documentation reduces design revisions. It also minimizes field surprises during construction in active healthcare environments.
Engineering evaluation support — producing precise existing conditions models that give structural and mechanical engineers verified data for analysis and system coordination. This eliminates reliance on outdated drawings that may no longer reflect actual field conditions.
Elevator shaft and vertical circulation documentation — capturing precise dimensional data of shafts, machine rooms, and surrounding structure. TWG delivers that data for elevator modernization, replacement planning, and code compliance verification.
Mechanical and systems coordination — documenting existing mechanical, electrical, and plumbing systems in three dimensions. In addition, this supports coordination of new work with existing infrastructure in complex healthcare environments where system conflicts carry real operational risk.
Facility management documentation — producing accurate floor plans and building records for ongoing facility operations and space planning. Moreover, these records support future renovation planning across multi-building healthcare campuses.

Notable Healthcare Projects in Illinois
TWG has worked with healthcare clients and their design partners throughout Illinois on a range of facility documentation and renovation planning projects. Notable examples include:
OSF Saint Francis Medical Center — Oncology Floor — TWG laser scanned the existing oncology floor at OSF SFMC in Peoria. Our team delivered a coordinated Revit model to support engineering evaluations and upcoming renovation planning for Architectural Design Group.
OSF School Admin Building — Peru, IL — TWG scanned approximately 15,000 square feet of the OSF School Admin Building in Peru, IL. Our team delivered precise existing conditions documentation — including the gymnasium and mezzanine — to support renovation and design planning for Architectural Design Group.
OSF SEMC Peru — Elevator Shaft Laser Scanning — TWG deployed the Leica RTC360 to capture precise existing conditions of the elevator shaft and surrounding structure at OSF SEMC Peru. Our team delivered a coordinated Revit model to support elevator planning and installation coordination for Architectural Design Group.
Why Illinois Healthcare Teams Choose TWG
TWG has worked with healthcare architects and facility teams throughout Central Illinois for nearly 30 years. Our team understands the operational constraints of active healthcare environments and the need to minimize disruption to patient care areas during documentation work.
Our scanning-to-modeling workflow means field data becomes immediately usable for design, engineering, and planning work. There’s no manual re-entry of measurements. Furthermore, there’s no approximation of complex geometry and no gap between what’s documented and what’s actually there.
For healthcare renovation teams, that accuracy is more than a documentation improvement. Instead it’s a risk reduction tool — one that supports better project outcomes at every stage of a complex renovation.
Ready to Document Your Illinois Healthcare Facility?
TWG works with healthcare architects, engineers, and facility teams throughout Illinois and beyond. Whether your project calls for 3D laser scanning, CAD drafting and Revit modeling, or construction printing, our goal is always the same — give your team accurate, reliable documentation you can build from.
If your facility is in the region, visit our dedicated page for 3D laser scanning in Central Illinois to learn more about how TWG supports local healthcare and facility teams.
