If you are planning a custom home, the architect’s fee is one of the first numbers you will want to understand. It is also one of the least clearly explained. Here is how architects typically charge, what influences the total, and how to judge whether the fee is worth it.
The short answer
For a custom residence, architectural fees commonly fall between 8% and 20% of the construction cost. Projects with extensive custom detailing, complex sites, or interior design and landscape design included tend toward the upper end of that range, and sometimes above it. Smaller or simpler projects may be priced differently, often because there is a minimum amount of design work no matter how small the house.
So on a home that costs $1 million to build, a fee in the range of $80,000 to $200,000 would not be unusual. That is a significant number, which is why it is worth understanding what it covers.
How architects structure their fees
There are three common models:
- Percentage of construction cost. The fee is a set percentage of the final cost of building the home. It is the most common model for custom residential work and scales naturally with the size and complexity of the project.
- Fixed fee. A single agreed price for a defined scope of work. This gives you certainty, but changes to the scope usually mean adjustments.
- Hourly or time-and-materials. Often used for consultations, feasibility studies, small remodels, or early exploratory work.
Many studios blend these: for example, a fixed fee for the initial design phases and a percentage for construction administration.
What the fee actually covers
An architect does far more than draw a pretty house. A full-service engagement typically includes:
- Programming and site analysis. Understanding how you live, what the land offers, and what zoning and codes allow.
- Schematic design. The big ideas: form, orientation, views, and how spaces flow.
- Design development. Refining materials, structure, windows, rooflines, and systems.
- Construction documents. The detailed drawings and specifications a builder uses to price and build the home.
- Coordination with engineers and consultants. Structural, mechanical, civil, lighting, and others.
- Bidding and contractor selection support.
- Construction administration. Site visits, answering the builder’s questions, reviewing quality, and keeping the design intact as the house goes up.
At Bjella Architects, architecture, interiors, and landscape are conceived together, so decisions about a staircase, a fireplace, and the garden beyond it are made as one idea rather than three separate ones. Studios that offer this integrated approach may price differently than those that handle architecture alone, so it is worth comparing like for like.
What drives the cost up or down
Size and complexity. A simple rectangular house costs less to design than one with curved walls, cantilevers, or a sloped site that demands engineering creativity.
Level of customization. Custom millwork, bespoke furniture, and one-off architectural details take more design time than selecting standard components.
Scope. Architecture only, or architecture plus interior design, lighting design, and landscape? The broader the scope, the higher the fee, and often the more cohesive the result.
Site and location. Mountain, coastal, and hillside sites may require extra analysis, specialized engineers, and more approval steps.
Approvals. Design review boards, historic districts, and environmental regulations all add time.
Remote projects. Designing a home far from the studio can involve more travel, but a well-organized process makes this manageable. We cover that in our article on working with an architect out of state.
Costs people forget to budget for
The architect’s fee is only part of the picture. Plan for:
- Structural, civil, and geotechnical engineering
- Surveys and soils reports
- Permit and plan-review fees
- Interior design, furnishings, and landscaping (if not included)
- A contingency of 5–10% for the unexpected
Is hiring an architect worth it?
The fee is usually a small fraction of what a home costs over its lifetime, yet design decisions shape how every day in the house feels. A thoughtful plan can save money in construction by avoiding rework, improve energy performance, and add resale value. Most importantly, it produces a home that fits the way you live, not just one that meets the code. [link to FAQ page “What Does “Custom” Really Mean, and Is an Architect Worth the Cost?”]
How to get an accurate number
The best way to understand cost is to talk with an architect about your site, your goals, and your budget. Be candid about your construction budget from the start: it lets the architect design a house that is realistic rather than one that will need to be cut back later.
If you are considering a custom home, get in touch with Bjella Architects for a conversation about your project.