
DIGITAL ENGINEERING · EXISTING CONDITIONS · BIM
From physical reality to usable digital information
Verified existing conditions
Coordinated BIM models
Lifecycle-ready information
WHAT AS-BUILT MODELING MEANS
Understand what exists. Plan what comes next.
As-built modeling services create a coordinated digital representation of a building, facility or infrastructure asset as it physically exists. The model is developed from verified sources such as laser scans, point clouds, surveys, redlines and current project records, then structured for design, coordination, handover or operations.
Original design information often stops matching reality after construction changes, equipment replacement and years of operation. That gap creates risk when teams plan around drawings that are incomplete, outdated or unverified.
Desapex brings capture data, existing documents and engineering requirements into one controlled workflow. The result is a usable baseline for renovation, retrofit, space planning, asset information and future digital-twin initiatives.
Services
Services across the as-built information lifecycle
Choose a focused service or combine capture, modeling, validation and information delivery in one coordinated scope.
BUSINESS VALUE
Replace existing-condition uncertainty with a dependable project baseline
A well-scoped as-built model reduces avoidable discovery work and gives every discipline a shared reference.
BUILT AROUND YOUR PRIORITIES
Designed around your next decision
The right scope depends on what the model must support. Define that use before choosing capture method, detail and information content.
Renovation & Refurbishment
Redesign with confidence
Understand layouts, structures and services before planning modifications.

Brownfield Expansion & Retrofit
Modernize operating assets
Document equipment, piping, structures and service networks for tie-ins and upgrades.

Construction Handover
Close the gap between design and delivery
Prepare verified records and structured information for project closeout and future use.

Facility Management & Maintenance
Make building information easier to use
Organize spaces, routes and agreed asset data for maintenance and change planning.

Digital Twin Enablement
Build a trusted geometric foundation
Prepare an accurate model that can be enriched with operational and asset data.

Infrastructure Modernization
Plan upgrades with verified information
Document existing infrastructure for capacity studies, rehabilitation and coordinated design.

DIGITAL-FIRST DELIVERY
From existing-condition data to usable project information
A five-step workflow aligns the capture, model and deliverables with the intended use from the start.
01
Define purpose and information requirements
Confirm intended uses, disciplines, source quality, coordinate system, accuracy, level of information need, formats and acceptance criteria.
02
Collect and assess existing information
Review available drawings and models, then capture missing conditions through suitable survey, laser scanning, imagery or verified field records.
03
Process data and develop the model
Register and clean point clouds, establish coordinates and model the agreed architectural, structural and MEPF scope.
04
Validate against approved sources
Check geometry, alignment, completeness and agreed tolerances; record exclusions, inaccessible areas and material deviations.
05
Deliver, integrate and hand over
Issue models, drawings, reports and agreed data in the required formats, with revision status and guidance for downstream use.
SECTOR EXPERTISE
Existing-condition information for complex assets
The same core workflow is adapted to each asset's access, safety, operating constraints and information needs.
WHY DESAPEX
Why choose Desapex
Desapex combines digital engineering, multidisciplinary BIM and structured information delivery to make existing-condition data useful beyond the survey itself.
Published presence in Stockholm, global delivery capacity
Desapex AB has a published Stockholm office, supported by an international engineering organization. Project staffing and site coverage are agreed for each assignment.
Digital-first engineering
We connect capture, modeling, coordination and information management instead of treating the output as isolated drafting.
Validation tied to intended use
Accuracy, tolerances and checks are defined around the decisions and deliverables the model must support.
Multidisciplinary modeling
Architectural, structural and MEPF information can be coordinated within one agreed model scope.
Structured information management
Delivery can follow project-specific naming, status, review and CDE requirements, aligned with established BIM information-management practices.
Lifecycle-oriented output
Models and data can be prepared for renovation, handover, facility management and future digital-twin workflows.
AS-BUILT MODELING IN ACTION
Existing-condition projects in practice
Examples show how a verified digital baseline supports expansion, renovation and coordination. Publish only approved project facts.
START WITH THE INFORMATION YOU NEED
Plan your as-built information scope
Tell us what asset you are working with, what information already exists and which decision the deliverable must support. We will help define a practical scope for capture, modeling, validation and handover.
HELPFUL ANSWERS
Frequently asked questions
What are as-built modeling services?
As-built modeling services create a coordinated digital representation of a building, facility or infrastructure asset as it physically exists. They use verified inputs such as laser scans, point clouds, surveys, redlines and current records to produce BIM models, drawings or structured information for design and operations.
What is included in an as-built modeling solution?
How is as-built modeling different from Scan to BIM?
How accurate is an as-built BIM model?
Which file formats can be delivered?
Can as-built models support facility management and digital twins?
















