How to Track Billable Hours for Architects and Keep Projects on Budget

For architecture firms, billable-hour tracking is one of the clearest ways to understand whether a project is consuming labor as planned. When time is recorded against the correct project phase and compared with the hours budgeted for that phase, project managers can see where effort is accumulating and whether scope is expanding.

This matters just as much on fixed-fee projects as it does on hourly engagements. Even when the client is not billed by the hour, your firm still needs to know how many resources each phase is using and whether the project is progressing at a sustainable rate.

That is where a structured time-tracking process becomes useful. The goal is to connect the hours your team records with the way the project is actually being delivered, so you can see whether the work is staying aligned with the budget. In the sections ahead, I’ll walk through how to track billable hours in architecture and use the resulting data to make better project decisions.

Everything About Tracking Architect Billable Hours 

• A reliable billable-hour system should help you see whether project labor is being used as planned and give you enough information to act before the budget drifts too far off course.
• Defining Billable Hours: Set clear rules for what your firm classifies as billable, non-billable, and additional-service work.
• Breaking Projects Into Phases: Track time against the relevant project phase so you can see where labor is actually being consumed.
• Set Labor Budgets by Phase: Assign planned hours to each phase to create a benchmark for comparing actual effort. 
• Standardize Time Codes: Use a simple, consistent coding structure so employees record similar work in the same way.
• Use a Time Tracking Tool: Capture working time against the correct project, phase, and activity while the context is still clear.
• Review Time and Project Performance: Check recorded hours regularly against phase budgets and project progress, then investigate meaningful variances.
• Use Historical Data to Improve Estimates: Apply actual hours from completed projects to make future staffing plans and fee estimates more realistic.

What is Billable Time for Architects?

Billable time is the time an architect or another member of the project team spends providing services that can be allocated or charged to a client engagement under the firm’s agreement and billing policies.

The important phrase is “under the agreement”. A task does not become billable simply because it relates to a client’s project. The scope of services, fee arrangement, additional-services provisions, and your firm’s accounting practices determine how the time should be classified.

For example, producing construction documents may clearly fall within the agreed basic services. A third redesign requested after an approved design milestone, however, may need to be handled differently depending on the contract.

That distinction matters even when the client never sees an hourly breakdown because the classification of billable hours in architectural firms eventually affects numerous aspects of the business. These include utilization, project costing, resource planning, and profitability analysis.

Which Tasks Count as Billable vs. Non-Billable Time in an Architecture Firm

There is no universal list that makes every activity billable or non-billable in every architecture firm. Still, you can establish consistent internal rules around common activities.

Activity	Typical treatment	When it is billable/non-billable
Schematic design work	Billable project time	Billable when the work forms part of the agreed schematic design services for that project. Work outside the agreed design scope may need separate authorization.
Design development	Billable project time	Billable when developing the approved design within the contracted scope. Major redesign after approval may fall outside the original fee.
Construction documentation	Billable project time	Billable when preparing drawings, specifications, and related documents included in the contracted documentation phase.
Consultant coordination	Usually billable project time	Billable when coordination with structural, MEP, civil, or other consultants is required to deliver the architect’s contracted services.
Client design meetings	Usually billable project time	Billable when the meeting relates to project design, decisions, approvals, or coordination covered by the engagement. Sales or pre-contract meetings are generally non-billable.
Site visits	Usually billable when included in the engagement	Billable when site observation or construction-phase attendance is included in the firm’s services. Unplanned visits may need to be treated as additional services depending on the agreement.
RFI or submittal review	Usually billable project time	Billable when reviewing RFIs, shop drawings, or submittals is part of the firm’s Construction Administration responsibilities.
Client-requested redesign	Billable project time or additional service	Billable within the original fee if the revisions are included in the agreed scope. Substantial changes after approval may require an additional-services authorization.
Proposal preparation	Usually non-billable	Normally treated as business-development time when the firm is pursuing work and no client engagement has yet been established.
Internal training	Non-billable	Treated as firm overhead because the time is spent developing staff rather than delivering a specific client’s contracted services.
Firmwide administrative meetings	Non-billable	Non-billable when the meeting concerns internal operations, HR, finance, policies, or general firm management rather than a specific client project.
Internal rework	Usually non-billable to the client	Rework caused by an internal mistake is generally absorbed by the firm. If the rework results from a client-directed change or approved scope change, it may be treated as billable or additional-service work.

Why Architecture Firms Need Clear Billing Rules

If two architects classify the same activity differently, your problem extends beyond an untidy timesheet.

Suppose one project manager records coordination meetings against Design Development while another treats similar meetings as overhead. Comparing those projects later will give you distorted information about phase effort, utilization, and profitability.

I have found that the best billing rules answer three questions without requiring employees to make an accounting judgment every time they enter time: Which project was I working on? Which phase or activity did the work belong to? Was it client/project work or internal work?

Consistency gives you comparable data. Once those rules are stable, you can meaningfully ask why one project required 420 Design Development hours while a similar project required 310. Without consistency, you may simply be comparing different classification habits.

Why Track Hours If the Project Has a Fixed Fee?

Because a fixed fee fixes the client’s price, not your firm’s labor cost.

Suppose your firm agrees to complete a project for a fixed fee of $120,000. If the team finishes the work in 900 hours, the project generates about $133 in fee revenue for every hour worked. If the same scope takes 1,400 hours, that falls to about $86 per hour, before accounting for payroll, overhead, consultant costs, or other project expenses.

The client still pays $120,000 in both cases, but the second project consumes 500 additional labor hours to earn the same fee. Tracking those hours is what allows you to see whether the project is using labor within the assumptions built into the fee.

Hourly or Time-And-Materials Projects  

On an hourly engagement, recorded time has a direct relationship with billing.

If an employee spends six architectural billable hours on a client assignment at an agreed rate, those six hours can contribute directly to the invoice. Accurate time capture therefore helps prevent both underbilling and unsupported overbilling.

However, I would still track more than the invoice total alone. Categorizing the six hours by project phase or task can reveal where the engagement is consuming effort and whether the original estimate remains realistic.

Fixed-Fee Projects  

On fixed-fee projects, the primary value of time tracking shifts from invoice calculation to internal project control.

Imagine that you allocated 300 hours to Design Development. When the team has used 225 hours, you have consumed 75% of that labor allowance. If DD is almost complete, that may be perfectly acceptable. If it is only 55% complete, the numbers are telling you to investigate.

Additional Services 

Time records can also help quantify work that extends beyond the original assumptions.

For instance, your project may include an agreed number of design iterations, while the client later requests significant additional redesign. Separately identifying that effort can help you understand how many additional hours the change is consuming and support a more informed discussion about scope and fees.

However, time records alone do not automatically make work compensable as an additional service. You still need to follow the applicable agreement, notice requirements, authorization process, and firm procedures.

How to Track Billable Hours for Architecture Firms: 7 Easy-to-Follow Steps

The most useful system is not necessarily the one that collects the greatest amount of data. It is the one that captures enough accurate data to support billing, project-budget decisions, staffing, and future estimates without creating an unreasonable administrative burden.

Step 1: Define What Your Firm Considers As Architectural Billable Hours 

Before you ask people to track their time, decide what each category actually means inside your firm.

That sounds basic, but inconsistent definitions are one of the first problems I look for when time reports do not reconcile with what managers believe is happening on projects. In one remote team I worked with, a review of submitted timesheets found that roughly 18% of entries requiring correction were not missing hours at all; employees had simply classified them differently.

For an architecture firm, the ambiguity often appears around activities such as consultant coordination, client revisions, site visits, travel, proposal work, internal rework, or project-related administrative tasks. One person may treat a coordination call as project time while another places the same activity under general administration.

You therefore need a documented rule for how your firm treats each recurring activity, while leaving room for the contract to override the default classification where necessary.

Step 2: Break Each Project Into Phases  

Once the billing rules are clear, structure projects so the recorded hours tell you more than the total labor consumed.

For a traditional architecture engagement, you might track architect billable hours for Schematic Design, Design Development, Construction Documents, bidding or negotiation, and Construction Administration separately. The actual phase structure should follow the project’s delivery model and agreement rather than a generic template.

The reason is practical. If Project A has used 1,000 hours, that figure tells you very little by itself. If you know that Design Development has consumed 280 of its planned 300 hours while Construction Documents remains comfortably below budget, you know where to investigate.

I have seen this difference materially change project conversations. In one project portfolio, overall labor appeared to be within approximately 4% of the aggregate budget, which initially looked healthy. Once the projects were reviewed by phase, however, three active phases were already running 17% to 23% above their planned hours. The underruns elsewhere had simply hidden the problem.

That is why I prefer enough granularity to isolate meaningful project activity without breaking the work into dozens of minor codes.

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Step 3: Establish a Labor Budget For Each Phase 

Phase-level time data becomes useful only when you have something meaningful to compare it against.

Suppose your planned labor looks like this:

Phase	Budgeted hours
Schematic Design	180
Design Development	300
Construction Documents	480
Construction Administration	240

You now have a baseline for evaluating actual effort as the project progresses.

However, I would not stop at billable time for architects. The staffing mix can change the economics of a phase even when the team remains within the hour budget.

If Construction Documents were estimated on the assumption that a substantial portion of production work would be handled by junior and mid-level staff, but senior architects end up performing much of that work, the project can consume more labor cost than anticipated without exceeding the nominal 480-hour allowance.

I have seen this happen in distributed teams when specialist knowledge becomes concentrated among a few senior employees. In my experience, a project remained roughly 6% below its total hour budget, yet senior-level hours were 29% above the original staffing assumption. The project looked healthy on an hours-only dashboard while its labor margin was already being compressed.

So the question is not simply, “How many hours can we spend?” You also need to understand whose hours the fee was designed to support. 

Step 4: Create Simple, Standardized Time Codes  

Your coding structure determines whether the reports produced later will actually be comparable.

A practical hierarchy might be:

Client → Project → Phase → Task → Billing classification

For example:

Client A → Office Renovation → DD → Consultant Coordination → Billable

or:

Internal → Business Development → Proposal Preparation → Non-billable

The temptation here is to keep adding detail. However, I would resist it unless each new category answers a question somebody genuinely intends to use.

I have seen teams move in the opposite direction with better results. In one remote operation, the tracking system contained 46 activity codes, many of which overlapped or were interpreted differently. After consolidating them to 16 clearly defined categories, miscoded entries fell by roughly 40% over the following two reporting cycles.

For architecture firms, the same principle applies. Track consultant coordination separately if you intend to analyze it. Also, track each type of drawing review separately only if that distinction will influence budgeting or staffing decisions.

Step 5: Use a Time Tracking Tool to Record Time

Once your project structure and time codes are defined, the next challenge is capturing the work consistently enough for that structure to remain useful.

That can be harder in architecture than it first appears. An architect may spend 20 minutes reviewing a consultant drawing, move to a Revit detail for 40 minutes, answer a client question, and later review an RFI. When those activities are reconstructed at the end of the week, short pieces of project work are particularly easy to forget or assign to the wrong phase.

A time-tracking tool reduces that dependence on memory by keeping the record closer to the work itself. TimeBee, for example, supports project- and task-based tracking, billable and non-billable classifications, project hour limits, custom billing rates, automatic and offline time capture, timesheets, and project-cost reporting. 

For an architecture firm, those features become useful when they help turn fragmented working activity into project data that a manager can actually review.

I have found project- and task-level tracking especially valuable when teams work across several assignments at the same time. In one distributed team of 34 employees, introducing TimeBee’s project-linked entries reduced records that later needed project or task clarification from roughly 16% to 5% within eight weeks.

TimeBee also helped with billable and non-billable categorization by giving employees a clearer way to separate client work from internal activities as they recorded their time. In one review, almost one in five corrected entries involved classification rather than missing time, which showed that the problem was not always whether hours were captured, but whether they were assigned correctly. 

This clearer classification makes billable time for architecture firms easier to measure accurately while also improving the reliability of utilization and project-cost reports.

I have also found automatic time capture useful for recovering short periods of work that are easily missed in reconstructed timesheets. In one remote team, recorded project time increased by about 7%, largely because brief calls and document reviews were captured more consistently. When managers could then compare those hours against project limits and cost data, they identified 11 projects nearing their labor budgets around two weeks earlier than before. 

Custom rates added further context by showing when senior staff were consuming more of the labor budget than planned. 

Step 6: Review and Approve Time Consistently

I prefer managers to review active projects on a predictable cadence because a time variance becomes less useful the longer it sits undiscovered. During that review, the first job is to verify that hours are correctly classified. The second is to compare those hours with the phase budget and the amount of work actually completed.

Suppose Design Development has a 300-hour budget and the team has recorded 225 hours. You have consumed 75% of the planned labor.

If DD is roughly 85% complete, the position may be reasonable. If the phase is only 60% complete, labor consumption is running 15 percentage points ahead of reported progress.

I would not interpret that immediately as an efficiency problem.

In one remote-team review cycle, approximately 31% of significant labor variances were associated with scope or requirement changes, while 24% related to estimating assumptions and another 18% turned out to involve coding or data-quality problems. Only around 14% were primarily associated with workflow inefficiency.

That is why I treat the variance as the beginning of the analysis.

So, first, verify the data. Then look at what changed during the project. Once you know the cause, reforecast what remains.

If DD has only 75 budgeted hours left, but the PM now estimates that another 130 hours will be required, the useful number is no longer merely “75% consumed.” You are looking at a projected 55-hour overrun.

That gives you something you can manage while the phase is still active. The practical difference is timing: you are responding to a forecast rather than explaining an overrun after the work has already been completed.

Step 7: Use Historical Time Data to Improve Future Fee Estimates

Completed projects give you a much stronger basis for future fee estimates than professional judgment alone. If your last eight comparable projects averaged 342 DD hours, but your estimating model still allows only 300, that repeated gap should inform the next proposal.

I have found historical time data especially useful for spotting patterns that are easy to miss when projects are reviewed individually. You may find, for example, that Construction Administration consistently uses 15–20% more hours than planned, or that renovation work requires 25% more senior-level involvement than expected.

The value is in the repetition. One overrun may be project-specific; if six of the last seven similar projects exceed the same phase budget, the estimating assumption likely needs to change. Over time, this makes future staffing, phase budgets, and fees more closely reflect how your firm actually delivers the work.

The 5 Metrics Architecture Firms Should Monitor

You do not need an overloaded set of SOPs to understand whether billable hours for architects are translating into healthy project performance. I would focus on five key metrics that show how labor is being used and whether that effort is supporting the project’s financial goals.

1. Billable Utilization: This part refers to how much available time goes to billable work. Calculate it as billable hours ÷ available working hours × 100. If an architect records 28 billable hours in a 40-hour week, utilization is 70%. Use it as a capacity indicator, not a standalone productivity score.
2. Phase Budget Burn: See how quickly a phase is consuming planned hours. For this, calculate actual phase hours ÷ budgeted phase hours × 100. If DD uses 225 of 300 planned hours, 75% of the labor budget is already consumed.
3. Progress-to-Burn Variance: Check whether labor use is outpacing project progress. If Construction Documents has used 68% of its hours but is only 50% complete, that gap deserves investigation. This is especially useful when monitoring billable hours in architecture by phase.
4. Effective Hourly Rate: Through this metric, you’ll see what the firm actually earns per hour worked. Divide earned project fee by actual hours. A $100,000 fee delivered in 1,000 hours produces a simplified effective rate of $100 per hour.
5. Realization and Labor Profitability: This refers to knowing how billable work becomes revenue and margin. Look beyond recorded time to what was billed, collected, and ultimately retained after labor and delivery costs. These measures show whether project activity is creating sustainable financial value.

Common Mistakes to Avoid While Tracking Billable Time for Architecture Firms

Poor time-tracking habits can make otherwise useful data misleading. When monitoring billable hours in architectural firms, these are the mistakes I would avoid:

• Waiting until the end of the week to reconstruct time. Tasks are easy to forget, which leads to incomplete or misclassified records.
• Tracking only billable work. This hides how much capacity is being absorbed by administration, training, business development, and other non-billable activities.
• Using inconsistent time codes, as it creates records that are unreliable.
• Assuming more billable hours means higher productivity. High billable utilization can coexist with rework, delays, or poor project economics. 
• Treating every budget overrun as an employee-performance issue.
• Failing to separate scope creep from poor estimating, as both can increase billable hours for architecture firms, but they require different responses. 
• Collecting time data without reviewing it against project budgets.

FAQs

Are client meetings billable for architects?  

Yes, when the meeting is part of the professional services covered by the client agreement. Design reviews, coordination meetings, and project decision meetings are commonly treated as billable project time. However, business-development meetings, pre-contract discussions, or work outside the authorized scope may be classified differently under the firm’s billing policy.

What is a good billable utilization rate for an architecture firm?  

A good billable utilization rate depends on the employee’s role and the firm’s operating model. Project-focused architects and technical staff will typically have higher targets than principals or managers who also handle business development, leadership, and administration. Rather than chasing one firmwide percentage, set role-specific targets and track whether utilization supports project delivery, workload balance, and profitability.

What is the difference between utilization and productivity?  

Utilization measures how much available working time is allocated to billable work. Productivity measures the useful output produced from the time and resources used. An architect can have high utilization but still create rework or delays, while a principal may have lower utilization because of leadership duties. For that reason, utilization should not be treated as a standalone productivity score.

How can time tracking identify scope creep?  

Time tracking can reveal scope creep when a phase begins consuming more labor than planned and the additional hours coincide with client-requested changes or added deliverables. The records help project managers quantify the extra effort and document when it occurred. However, the time data alone does not determine whether the work qualifies contractually as an additional service.

What should an architecture firm do when a phase exceeds its hour budget? 

First, verify the time entries and compare labor consumed with actual phase progress. Then identify whether the variance comes from scope changes, estimating errors, staffing mix, rework, consultant delays, or workflow problems. Once the cause is clear, reforecast the remaining hours and adjust staffing, process, scope, or fee discussions accordingly.

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