Timesheets for Architects: Why They Matter and How to Make Them Stick

Most architects working on fixed fees think timesheets don't apply to them. They're wrong, and the practices that track time carefully are consistently more profitable than those that don't. Here's why, and how to make it work without it feeling like an admin burden.

The fixed-fee trap

The logic seems sound: if you've agreed a fixed fee, why track hours? The client isn't paying by the hour, so the time you spend is irrelevant. The problem is that this reasoning ignores your own profitability.

A fixed fee is only profitable if the time required to earn it is within your budget. If you consistently spend more time than you budgeted, you're effectively working at a lower rate than you think, and you'll have no data to help you price future projects more accurately.

Five reasons to track time on fixed-fee projects

• Pricing accuracy: your historical time data is the best guide to pricing future projects of a similar type and scale
• Fee burn monitoring: comparing actual hours to budgeted hours tells you whether a project is on track before it's too late to act
• Scope creep evidence: if a client queries a variation notice, time records are your strongest support
• Profitability by project type: over time you'll learn which project types are genuinely profitable for your practice and which consistently overrun
• Staff utilisation: understanding how your team's time is distributed across projects, admin, and business development helps you plan capacity

What to record in a timesheet

A useful timesheet entry needs four things: the project (or non-project activity), the RIBA stage, the number of hours, and a brief description of the work. That's it. Timesheets fail when they become too granular, logging in 15-minute increments or categorising every task into a dozen sub-codes creates friction that people avoid.

For non-project time, a few simple categories cover most things: business development, training and CPD, admin and finance, and internal meetings. Knowing how much of your week goes to non-billable work is as useful as knowing how your billable time is distributed.

Building a timesheet habit

The biggest obstacle to timesheets isn't the system, it's the habit. Most people who try to log time at the end of the week find they can't accurately remember what they spent four days ago. The solution is to log time daily, ideally at the end of each working day.

• Set a recurring 5-minute calendar block at 5pm every day
• Keep the interface as simple as possible, friction is the enemy of consistency
• Start with just two or three active projects rather than trying to categorise everything at once
• Review your weekly totals on Friday, it takes two minutes and keeps the habit reinforced
• If you miss a day, do your best to reconstruct it the next morning rather than abandoning it

Timesheets for small teams

Getting a team to log time requires clear expectations from the start. Explain why you're tracking time (project profitability, not surveillance), set a simple standard for what needs to be logged, and make it a weekly rhythm rather than an afterthought.

Weekly timesheet reviews don't need to be formal, a five-minute check that everyone's logs are up to date on Friday afternoon is enough to catch gaps before they become impossible to fill.

When timesheets become insight

After six months of consistent time tracking, something useful happens: you start to see patterns. You'll know which project types take longer than expected at Stage 4. You'll know which clients generate the most revision cycles. You'll know how much of your week is genuinely billable.

That data is worth more than any benchmark or industry average. It reflects your specific practice, your specific team, and your specific clients, and it makes every future fee proposal more grounded and more defensible.