How Accurate Are Your As-Built Drawings?

The Question Every Owner Should Ask Before Starting a Renovation

Most owners assume their as-built drawings accurately represent their building.

Unfortunately, that assumption is often wrong.

Over the life of a property, buildings change. Walls move. Mechanical systems are replaced. Tenant improvements occur. Equipment is relocated. Spaces are reconfigured. In many cases, these changes happen without documentation ever being updated.

Years later, owners, architects, contractors, and facility teams are relying on drawings that may no longer reflect reality.

The result?

Unexpected conditions, costly change orders, project delays, and decisions being made with incomplete information.

Before investing in your next renovation, capital improvement project, or facility upgrade, it is worth asking a simple question:

How accurate are the drawings you're using today?

What Are As-Built Drawings?

As-built drawings are intended to document how a building was actually constructed.

They are often created at the completion of a construction project and become the foundation for future renovations, maintenance planning, and operational decision-making.

Typical as-built documentation may include:

• Floor plans

• Reflected ceiling plans

• Elevations

• Mechanical systems

• Electrical systems

• Plumbing systems

• Equipment locations

In theory, they represent the physical asset.

In practice, they represent the asset at a specific moment in time.

Why As-Builts Become Inaccurate

Buildings are living assets.

Every year, changes occur that can gradually separate documentation from reality.

Common examples include:

Tenant Improvements

Retail stores, offices, and commercial spaces are frequently modified to meet changing operational needs.

Renovations

Walls are moved. Doors are relocated. Spaces are repurposed.

Mechanical Upgrades

HVAC systems, plumbing, and electrical infrastructure are often upgraded without complete documentation updates.

Emergency Repairs

Unexpected repairs are made quickly and rarely result in revised drawings.

Multiple Contractors

Over years or decades, numerous contractors may work on a facility, each maintaining their own records.

Eventually, no one knows which set of drawings is truly accurate.

The Cost of Inaccurate Documentation

Many owners do not discover documentation issues until construction begins.

At that point, the consequences become expensive.

Common impacts include:

Change Orders

Contractors encounter conditions that differ from the drawings.

Additional work is required.

Project costs increase.

Schedule Delays

Design teams must stop and redesign portions of the project once field conditions are discovered.

Additional Site Visits

Teams spend valuable time investigating conditions that should have been known before design started.

Increased Risk

Owners make decisions based on assumptions instead of verified information.

Capital Planning Challenges

Long-term planning becomes difficult when facility data cannot be trusted.

Would You Bet a $5 Million Renovation on Those Drawings?

This is the question every owner should consider.

If a renovation project costs millions of dollars, is it worth relying on documentation that may be years—or even decades—old?

The cost of uncertainty often exceeds the cost of validating existing conditions.

The most successful projects begin with accurate information.

How Owners Create Digital Certainty

Rather than relying solely on legacy documentation, leading organizations are creating verified digital records of their assets.

This process may include:

• Existing conditions capture

• Laser scanning

• Reality capture

• Digital floor plans

• BIM development

• Asset documentation

• Digital asset intelligence

The goal is not simply to create new drawings.

The goal is to establish a trusted source of truth for the physical environment.

When owners know exactly what exists, they can:

• Plan with confidence

• Reduce risk

• Improve project outcomes

• Protect asset value

• Eliminate costly surprises

The Future Belongs to Owners Who Know Exactly What They Own

Every major decision involving a physical asset depends on accurate information.

Whether you manage a retail portfolio, hotel, healthcare facility, campus, cruise ship, airport, industrial facility, or commercial property, the question remains the same:

How accurate are your as-built drawings today?

If you don't know the answer, it may be time to verify.

Because the most valuable asset isn't the building itself.

It's the certainty that comes from knowing exactly what you own.

About Primera Works

Primera Works helps owners of physical assets create Digital Certainty.

Through Existing Asset Intelligence, reality capture, building documentation, BIM development, and digital asset intelligence services, we help organizations establish a

trusted source of truth for their physical environments.

Know exactly what you own. Plan with confidence. Protect asset value.