Hiring an Interior Designer for a New Build: When, Why and What It Costs

Building a new home means hundreds of decisions, and many of the ones that shape how the house will feel are made long before anyone talks about furniture: where the windows go, how high the ceilings are, where the lighting is wired, how the kitchen connects to the living space. That is why the question is not only whether to hire an interior designer for a new build, but when.

Do you need an interior designer when building a house?

You can build without one. Your architect or building designer will produce the plans, and your builder will offer a set of standard finishes. What you lose is someone whose whole job is the interior: how each room is used, how it is lit, what it is made of, and how it all fits together. Without that, those decisions are made one at a time, often on site, under time pressure.

If you are not sure how the roles divide, we explain it in Interior Designer vs Decorator vs Architect. In short, the architect or building designer is responsible for the building, and the interior designer for everything inside it.

When to bring an interior designer in, stage by stage

While the plans are being drawn (the best time)

This is when an interior designer adds the most value for the least cost. Changes on paper are cheap. At this stage, the designer works with your architect or building designer on room layouts, kitchen and bathroom planning, window placement in relation to furniture, ceiling details, and where built-in millwork will go.

Before you apply for the building permit

Still a good time. Layout and window changes are easier before drawings are submitted to your municipality, because changes after approval can mean revisions and delays.

Before framing

The last point at which it is easy to adjust interior walls, openings, blocking for heavy fixtures and the lighting plan. After framing, every change costs more.

Before electrical rough-in

Lighting is one of the most important parts of an interior, and it is fixed at rough-in. If the designer arrives after this, the lighting plan is mostly decided already.

At the finishes stage

A designer can still select finishes, fixtures, furniture and styling, and that is valuable. But by this point, most of the decisions that define the feel of the house have been made.

What an interior designer does on a new build

• Space planning: how each room is used and furnished, so the floor plan works for the way you live.
• Kitchens and bathrooms: layouts, cabinetry, fixtures and surfaces.
• Lighting design: a layered lighting plan coordinated with your electrician.
• Custom millwork: built-ins, storage, panelling and feature details.
• Materials and finishes: flooring, stone, tile, paint and hardware, chosen to work together.
• Drawings and specifications that your builder can price and build from.
• Site visits at key stages to answer questions and protect the design.
• Furniture, art and final styling.

On a full-service project, we stay involved from the first plan to the final styling, so the same person holds the vision from start to finish.

What does an interior designer cost for a new build?

Fees vary with the size of the home, the level of finish and how much of the project the designer is involved in. They are usually set up in one of three ways:

• A fixed fee, agreed at the start for a defined scope. This is the most predictable option.
• A percentage of the construction or interior budget, which scales with the size of the project.
• Hourly billing, often used for smaller scopes or consulting during construction.

Furniture and décor are usually priced separately from the design fee. Whichever model you choose, ask for the scope in writing: which stages are included, how many revisions, how many site visits, and how changes are handled.

Remember to compare the fee with what it saves. Catching one layout problem on paper instead of on site can be worth more than the design fee for that stage.

Working with your builder and architect

The best new builds have one team, not three separate contractors handing off to each other. Ask your architect or building designer and builder early whether they are used to working with an interior designer, agree on who produces which drawings, and decide how design questions on site will be answered. Most delays come from unclear responsibilities rather than difficult design.

An example: White Rock Residence

At White Rock Residence, a new home in White Rock, BC, cohesion was at the heart of the design. Stone, oak and layered textures repeat through the house, softening transitions between rooms and bringing the home's scale into balance. That kind of continuity is far easier to achieve when the interior is planned as a whole rather than room by room.

If you are planning a new home in Vancouver or elsewhere in the Lower Mainland, the best time to talk to us is before the plans are finished. Book a consultation.