Building a custom home is one of the most rewarding projects a homeowner can take on. It’s also one of the most complex. A question every client asks early in the process is simple: how long does it take to build a house?

The honest answer is that custom homes don’t follow a single timeline. Every project is shaped by design decisions, permitting, site conditions, and the level of detail involved. While timelines vary, understanding the phases of the process helps set clear expectations and reduce surprises along the way.

On average, a custom home takes about 10 to 16 months from the start of construction to completion. Here’s where that time goes.

Design Phase: 3–6 Months

The design phase typically lasts three to six months, and it forms the foundation of the entire project. Working with experienced St. Louis architecture firms ensures the home is shaped around your site conditions, lifestyle, and long-term goals.

During this stage, you’ll work closely with the architect to define what spaces you need and how the home should function. Layout options are explored, zoning requirements are reviewed, and the design is refined through feedback and revisions.

Feedback from clients throughout the process is encouraged. Strong early planning prevents expensive changes later and creates a smoother path to construction.

Documentation and Permitting: 1–3 Months

After the design is approved, the project enters the documentation and permitting phase. This usually takes one to three months, depending on municipal workload and project complexity.

Construction documents outline exactly how the home will be built. These drawings include floor plans, elevations, structural coordination, and site information. They are submitted for permit approval and used throughout construction to ensure the project follows the approved design. Permitting reviews confirm the home complies with zoning, safety, and engineering standards before construction begins.

Construction: 9–14 Months

The construction phase is where the home takes shape. For most custom homes, active building typically ranges from nine to fourteen months. Larger homes, complex structural designs, or challenging site conditions can extend that timeline.

Several factors influence progress once construction begins. Weather plays a role, particularly during freeze-thaw cycles that affect excavation and foundation work. Material availability also influences the pace of the build, especially when specialty items are involved.

Another common variable is the timing of homeowner decisions. Delayed selections for cabinetry, tile, or fixtures can temporarily pause work while orders are finalized.

A coordinated team keeps the build moving by sequencing trades efficiently and maintaining clear communication with the homeowner.

Build With a Team That Plans Ahead

A successful custom home begins with planning before construction. Clear expectations and thoughtful decisions affect the timeline from day one. Mitchell Wall Architecture & Design guides homeowners through each phase of the process, translating ideas into buildable plans while keeping the project organized and on schedule. The focus stays on creating a home that reflects your priorities without unnecessary surprises along the way.

To learn more or get started, contact us today to start the conversation!