Pricing BIM, Not a Simple Equation

Whenever we talk to clients about a new BIM project, the same questions almost always come up. How much does BIM cost? What are your hourly rates? Can you price it by square feet?

Unfortunately, the equation is not as simple as 2 + 2 = 4. And the reason is that every project comes with its own scale, level of complexity, and intent, among many other factors. On top of that, BIM services can vary widely depending on who the stakeholders are, as each one brings different needs and expectations to the table.

Image generated with ChatGPT

After more than a decade working with clients across the AECO industry, and despite my many attempts to standardize the estimation process, I have come to realize that when pricing BIM efforts, there is no universal formula, nor a single approach that fits all projects.

This is not just an article about pricing BIM, but about understanding and mitigating risks through real-world reality capture and scan-to-BIM examples.

BIM services come in many different flavors

Building Information Modeling has proven its value across every phase of a project, including design, construction, and operations. However, different stakeholders such as designers, engineers, constructors, owners, and operators have different requirements and expectations when it comes to digital models and data. Among many others, these are some of the most common services that can be delivered through BIM:

• 3D modeling for existing conditions

• 3D modeling for new designs, including BIM for fabrication

• 3D spatial and trade coordination, including clash resolution

• 2D documentation for existing conditions, layouts, and fabrication and as-built drawings

• 3D animations, scheduling, and cost estimation

• Structural and energy analysis

• BIM for facility management

When estimating these efforts, it is essential to understand the different roles involved in delivering each scope. Most modeling tasks can be performed by trade modelers such as architects, civil, and mechanical engineers. Other services, however, require more senior roles such as BIM Coordinators, BIM Technical Leads, and BIM Managers, as they involve a different level of communication, management, and construction knowledge.

Main Challenges

Some organizations rely on internal metrics based on square footage, a percentage of construction cost, or trade-by-trade estimates. Artificial intelligence has also improved significantly with the growing availability of historical estimation data. All of these can serve as useful starting points but, once again, none of them works for every single project.

One of the main challenges when assessing BIM efforts is the amount and quality of information available at the time those numbers are being put together. In an ideal scenario, we would receive complete project information before preparing a proposal. That would include drawings, models, schedules, and any client-specific requirements.

But reality usually looks different. Sometimes we only receive a screenshot from Google Maps and are expected to provide a rough order of magnitude (ROM) just to get things moving. Rushed estimates increase risk on both the client and provider sides, as assumptions cannot be clearly defined and clients do not fully understand what they are getting back.

This is why identifying the variables that influence pricing and using them to develop a proper scope statement becomes critical to minimizing those risks. Let’s dive a little deeper.

Key Variables

A proper BIM estimate needs to reflect the attributes that directly influence effort, risk, and the value delivered to each stakeholder. Understanding these variables early on helps set realistic expectations, protect both sides from unnecessary exposure, and create a pricing structure that aligns with the actual scope of work. Below are some of the key factors that I consider when structuring my proposals to help ensure most risks get mitigated.

1. Scope

There are some tasks that can be estimated based on hours. This is often the case for modeling different disciplines when drawings are available. A subject matter expert can review the documentation and define how long it will take to generate the 3D geometry. The same applies to the creation of 2D drawings, where it is usually possible to estimate the effort per sheet with reasonable accuracy.

BIM coordination efforts, for example, can be calculated as a percentage of modeling hours, but they should also account for meeting frequency and properly specify the not to exceed (NTE) limits on the number of coordination calls included in the scope.

For BIM for facility management, estimates are often driven by the number of assets and systems that need to be analyzed and structured. At this level of granularity, the scope becomes more manageable, allowing effort and time to be estimated with greater confidence.

Pro Tip 1

When you receive the request for proposal (RFP), don’t hesitate to ask questions or request clarifications. Clearly state what is included and explicitly call out what is not, since ambiguity at this stage almost always turns into friction later. Your future self will thank you later.

Pro Tip 2

If any part of the scope feels unclear to the point you are not comfortable pricing it, consider moving it away from a lump sum and into a time and materials approach. This helps reduce risk on your side and makes uncertainty visible to your client from the start.

*A lump sum is a fixed price agreed upon upfront.

*Time and materials (T&M) means the work is billed based on the actual time spent and resources used.

2. Schedule

In an ideal world, you would be able to propose your own schedule and delivery dates. While this may be possible for some projects, it is rarely the case for reality capture efforts. More often than not, reality capture is introduced when things have already gone off track. Construction issues, incorrectly installed elements, or components that simply do not fit are usually the triggers.

For better or worse, and despite the urgency, this is where we can truly add value and support our clients when they need it most. However, urgency comes at a cost. The modeling team may need to work weekends or be paid overtime. You may need to temporarily overstaff and lose efficiency with too many people working on the same model simultaneously. In some cases, last-minute software licenses are required to stay compliant.

This is why clarifying deadlines early matters. Discuss how timing impacts cost from the start to help set expectations and prevent surprises down the road.

Pro Tip 1

If you know your client is under time pressure, consider including a rush fee in your proposal to account for these risks. This helps the client understand the true cost of urgency, without assuming your pricing is high for no reason.

Pro Tip 2

To give your client some peace of mind, propose intermediate milestones or progress deadlines. This allows the client to see value and provide feedback early, giving you the opportunity to correct deviations before anything goes off track. On projects with compressed schedules, this is pure gold.

3. Added Value

Not everything should be priced by hours. There are certain tasks that take very little time for an experienced BIM specialist, and if we charged strictly based on time spent, we would be leaving money on the table and undervaluing the expertise behind the work.

For example, generating quantity takeoff schedules may only take a few minutes when you have a solid model with reliable data. Yet the impact of that information can be significant for decision-making, procurement, or cost control.

The same applies to clash detection. Running a clash test itself is simple and takes just a few clicks. What truly matters is knowing which clashes are relevant, how to group and prioritize them, and how to propose constructable solutions that actually work on site.

In these cases, the value is not in the time spent, but in the expertise and insight delivered.

4. Level of Detail

There is nothing that impacts the cost of BIM efforts more directly than the Level of Detail, or LOD. This is closely related to the purpose of the project. What are we doing this for? In reality capture projects, these are some of the most common use cases I see:

Existing conditions models: These are typically developed for owners and their AE teams who need to understand what is currently in place before starting remodeling or retrofit projects. In these cases, I usually recommend keeping the LOD on the lower end, around 200. This helps control cost while still maintaining the level of accuracy needed to establish a reliable project baseline.

Trade-specific models for contractors: Trade contractors are often required to deliver accurate as-built models once their scope is completed. If the model does not reflect true field conditions, payments can be delayed. These efforts usually include updating BIM models so the geometry matches actual installations, often incorporating additional details such as supports, hangers, and accessories. For this type of work, a higher LOD is typically appropriate, commonly 300 or 350, and it is often best paired with a set of as-built drawings.

BIM for FM: In some cases, owners also require associated metadata for systems, equipment, and spaces. This level of information is commonly referred to as LOD 500, but that is a topic worthy of its own article.

Image generated with ChatGPT

Pro Tip 1

For existing conditions models, make sure to double-check demolition drawings so you don’t estimate effort for elements that will not be needed in the model.

Pro Tip

It is very common for clients, especially from small and medium-sized organizations, to be unfamiliar with LOD classifications. What has worked best for me is showing concrete examples of each LOD for a specific trade, illustrating how the deliverables look in both 2D and 3D. This helps clients better understand the effort involved. Clarifying expectations early allows you to propose an LOD that supports the client’s goals without unnecessarily inflating costs. With the right information and open conversations, we can build estimates that are fair, predictable, and aligned with what a project truly needs.

*For more information about LOD check the BIM Forum.

5. Internal Costs

Labor is only one part of the equation. There are internal costs that are easy to overlook but essential when delivering BIM services. Hardware, software licenses, plugins, data storage, and cloud-based collaboration environments represent real and recurring expenses. These costs should be reflected in the rates you use for your estimates.

Pro Tip 1

Include a table with hourly rates based on roles in your proposals. This makes it easier to calculate effort accurately and helps justify change orders when the time comes.

Pro Tip 2

Quality and proper project management are key to succeeding in this industry. Make sure project management and quality control time are built into your estimates. I typically allocate between fifteen and twenty percent, depending on the project’s complexity.

Final Thoughts

The elements outlined above are just some of the factors that influence how BIM projects are estimated. Before wrapping up, here are a few final thoughts worth reflecting on:

• If you are accounting for automation in your project, take the time to understand how it impacts your numbers. Efficiency should improve outcomes without compromising your margins.

• Quality should never be negotiable if you want clients to keep coming back. Make sure you include the time and cost required to ensure it.

• Do not underestimate complexity. Some buildings have repetitive layouts, while others include dense MEP spaces with thousands of components packed into tight areas. Complexity often matters more than square footage.

Finally, if you are just starting to navigate your first estimates and feel intimidated about submitting quotes or proposals, this would be my biggest piece of advice: If there is no clear scope, create it. If you do not have enough information to clearly define the scope of work, build one. Digest what you have, make reasonable assumptions, and lay out the scope based on what you believe the project needs. I would rather skip an opportunity than price a project I do not understand. Saying no, or asking to pause until things are clear, is a professional decision too.