Do I Need an Architect to Build a House?

In most US states, you do not need an architect to build a single-family house. State architecture laws usually exempt one- and two-family homes, so a homeowner, a designer or a draftsman can prepare the plans, although the building department may still ask for an engineer stamp on the structure.

The answer changes with the type of building, the construction method and the place where you build. A simple wood-frame house in Texas or Florida is treated very differently from a house on a steep lot in an earthquake zone, and rules outside the US differ again. When I plan a house, the first call goes to the local building department, because the plan reviewer there is the person who decides what your drawings need to show and who has to sign them.

Do I Need an Architect to Build a House in the US?

Architects are licensed by the states, and every state defines which buildings require a licensed architect. Homes are almost always on the exempt side. Three examples show how this typically looks:

Most other states follow a similar pattern. Some cities and counties add their own requirements on top, and homeowners associations or lenders can also ask for professional drawings. Before you decide, check with your local building department what is accepted for your project.

When You Still Need an Engineer Stamp

Being exempt from the architect requirement does not mean anyone can design every part of the house. Residential codes based on the International Residential Code describe a prescriptive way of building, with standard spans, wall bracing and foundations. As long as your design stays within those rules, many building departments accept drawings without a stamp.

When the design goes beyond them, an engineered design is typically required. Common triggers are:

• Large open spans, long beams or point loads that are not covered by standard tables
• High wind, snow or seismic zones
• Steep slopes, retaining walls or difficult soil
• Structural steel, unusual materials or very tall walls
• More stories than the prescriptive rules cover, or large cantilevers

A structural engineer often charges about $500 to $2,000 for a house, and a review and stamp of plans that already exist is frequently quoted at around $500 to $1,200. That is far less than a full architectural service, which often costs 8 to 15 percent of the construction cost.

Rules Outside the US

Other countries handle this question very differently, and local rules always decide. A brief overview:

United Kingdom

There is generally no legal requirement to use an architect for a house. The title architect is protected, so only people registered with the Architects Registration Board may use it, but anyone can prepare drawings. What you do need is planning permission where required and approval under the Building Regulations, which in practice means drawings and often structural calculations.

Germany and Much of Europe

Many European countries are stricter. In Germany, a building permit application for a house must usually be signed by a person with the right to submit building documents, typically an architect or a qualified civil engineer, with details set by each federal state. Homeowners can still plan the house themselves and have the entitled professional check, complete and sign the submission.

Australia

Rules vary by state. In Victoria, for example, drawings for building work must be prepared by a registered architect or by a designer or draftsperson registered with the building authority. Owner-builders take on additional responsibility, so check the requirements of your state before you start.

Your Options for Getting House Plans

If an architect is not required, you can choose how much professional help you buy. Each route has its place.

Architect

An architect is worth the fee when the house is complex, the site is difficult, the design is unusual, or you want one professional to manage the whole process including construction. Good architects often find solutions that pay for part of their fee through a better layout or lower build costs.

Designer or Draftsman

Designers develop the layout with you; draftsmen mainly turn a finished design into construction drawings. Both are common for single-family homes in exempt states and cost a fraction of a full architectural service.

Stock Plans

Pre-drawn plans are the cheapest way to get a complete set of drawings. The catch is that they are designed for a generic lot and family, so most buyers pay for modifications and local engineering.

Plan It Yourself

Many owner-builders and self-builders design the house themselves with house planning software and bring in an engineer only for the structure, or a professional only to check and sign. This keeps the design decisions in your hands and keeps fees low. Whether drawings you made yourself are accepted for your permit depends on your local rules; our article can homeowners draw permit plans looks at this question in more detail.

When Hiring an Architect Makes Sense Anyway

Even when it is not required, an architect can be the better choice:

• Difficult site: steep slopes, narrow lots or strict zoning and design review.
• Ambitious design: large glass areas, complex roofs, open spans or unusual materials.
• No time to manage the project: an architect can coordinate engineers, bids and site questions for you.
• High budget: on an expensive house, design mistakes cost more than the fee.

Planning Your House Yourself with Plan7Architect

If you decide to design the house yourself, the software matters. With Plan7Architect, you plan with real building elements: walls with thickness, layers and height, floors, ceilings, slabs, roofs with dormers, stairs, foundations and beams. Placing a window or door creates the opening automatically, and the floor plans, sections, elevations and 3D model stay synchronized at all times.

Roofs are built automatically, including gable, hip, shed, flat and mansard roofs, and sloped lots can be modeled with terrain and contour lines. Timber construction tools show the framing in 3D, which helps when you discuss the structure with your engineer or builder. Living area is calculated automatically, and you can switch between imperial and metric units.

For the permit stage, you place sections and elevations on plan sheets with title blocks, print to scale or as PDF, and export DWG or DXF files for your engineer or reviewer. Our guide on how to create permit-ready house plans walks through the typical sheets.

Design Your House with Plan7Architect

With Plan7Architect Pro, you can design your complete house yourself, from floor plans with automatic dimensions to roofs, stairs, foundations, terrain, sections and elevations, and walk through every room in 3D. Whether you then hire an engineer, a designer or an architect to check and sign, you start with a finished plan. You can work in feet and inches or in meters and export your plans as PDF, DWG or DXF. Every purchase includes a 14-day right of withdrawal, so you can simply cancel your purchase by email if the software is not right for you.