Short answer
Agree who instructs the builder before work starts, and make it one person. Almost every problem in this arrangement comes from the builder receiving direction from two sources.
Get the design far enough ahead of the build. Drawings and selections should be substantially complete before the builder prices, or you are paying for decisions to be made twice.
Put the designer in the site meetings. The detail that gets simplified on a Tuesday morning is not one you will notice until the tile is set.
On this page
Why this arrangement works
Hiring a designer and keeping a builder you already trust is a legitimate and common structure, and it has real advantages:
- You keep a relationship that works. A builder who has done good work for you before is genuinely valuable.
- Two professional opinions. The designer represents the design intent; the builder represents constructability and cost. Where they disagree, you learn something.
- Independent pricing. The design can be tendered rather than priced by the party who drew it.
The trade-off is that the seam between design and construction is now yours to manage. That is where the split model most often fails — the mechanism is described in design-build versus hiring separately.
Who does what, precisely?
| Task | Usually the designer | Usually the builder |
|---|---|---|
| Floor plans and elevations | Yes | — |
| Structural engineering | Coordinates | Often arranges the engineer |
| Finish and fixture selections | Yes | — |
| Cabinetry design and shop drawing review | Yes | Installs |
| Pricing and scheduling | — | Yes |
| Permits | — | Yes, in their name |
| Ordering fixtures and finishes | Varies — agree explicitly | Varies — agree explicitly |
| Receiving and storing deliveries | Varies | Varies |
| Site supervision | Reviews design intent | Runs the site |
| Punch list | Compiles design items | Executes |
The two rows marked “varies” cause most of the trouble. Who orders the tile, and who owns the problem when it arrives short or damaged? Decide in writing at the start. The mechanics of ordering are in furniture lead times and procurement.
Drawings a builder can actually price, selections made in the right order, and someone reviewing the work against the design intent while it is still correctable.
Jan Revels designs and draws for clients using their own builders — and, where wanted, builds instead.
Who instructs the builder?
This is the single most important question in the arrangement, and it has one workable answer: one person, agreed in advance, in writing.
Two models, both fine:
- You instruct. The designer advises you; you direct the builder. Slower, and you retain complete control. Requires you to be available and to relay accurately.
- The designer instructs on design matters, within an agreed scope, and refers anything affecting cost or schedule back to you. Faster and more common, and it needs the boundary written down.
What does not work is both of you instructing without coordination. The builder receives two versions, follows the most recent or the most convenient, and nobody finds out until it is built. If a designer asks for something on site, that request should be copied to you the same day.
What falls between the two
The items that most often belong to nobody:
- Blocking in walls for mirrors, towel bars, televisions and future grab bars. The designer knows where it is needed; the builder needs telling before drywall.
- Switch and outlet positions. A builder places them by convention; a designer places them by furniture plan. Walk the rough-in together before drywall — this is the highest-value hour in the entire project.
- Tile setting-out. Where cuts fall, where niches land. Someone has to draw it — see bathroom tile selection.
- Appliance specifications reaching the cabinetmaker in time — see kitchen appliance planning.
- Shop drawing review. The cabinetmaker’s drawings must be checked against the design before fabrication.
- Deliveries. Who receives, inspects and stores them.
- Paint sheens by room, and where each color starts and stops.
Write this list into whichever agreement you sign, with a name against each item. It takes fifteen minutes and prevents most of what goes wrong.
Site meetings, and why they matter
- Meet on site at defined milestones, not only when there is a problem: after demolition, before drywall, before tile, before cabinetry, at completion.
- The pre-drywall walk is the critical one. Everything inside the walls is visible and everything is still cheap to change. Blocking, switches, outlets, valve heights, niche framing.
- Both professionals in the room together. Sequential conversations produce different answers.
- Write down what was agreed and send it to both within a day.
- Watch for value engineering. Detail gets simplified on site for good practical reasons and bad ones. If a change is proposed, ask what is lost as well as what is saved.
Handling friction between them
Some friction is healthy — it means both are doing their job. What to do with it:
- “That cannot be built” is sometimes true and sometimes means “that is unfamiliar.” Ask what specifically prevents it, and ask the designer to respond to that specific point.
- “They have changed my design” is sometimes a real problem and sometimes a necessary field adjustment. Ask why the change was made before deciding it was wrong.
- Keep the disagreement about the work. Have the conversation with both present rather than relaying complaints.
- You decide. Where they genuinely disagree, hear both, then make the call and record it.
- If one is consistently unreasonable, that is information about the professional rather than about the arrangement.
Key takeaways
- Agree in writing who instructs the builder. One person, always.
- Finish the design and the selections before the builder prices.
- The pre-drywall walk with both professionals is the highest-value hour of the project.
- Write down who orders, receives and inspects materials.
- Blocking, switch positions and tile setting-out are the classic items that belong to nobody.
- Copy every on-site design request to yourself the same day.
- When a change is proposed to save money, ask what is lost as well as what is saved.
Frequently asked questions
Can I hire a designer if I already have a builder?
Who should instruct the builder, me or the designer?
What usually falls between a designer and a builder?
When should the designer be on site?
What if my builder says the design cannot be built?
Jan has practiced interior design in Dallas since 1997 and founded Chateau Concepts in 2001. She holds a BFA in Interior Design from the University of North Texas. She designs and general-contracts residential and commercial projects across the Park Cities, Preston Hollow and North Dallas. Read her full profile →
Written and reviewed by Jan Revels before publicationWork with Chateau Concepts
Jan Revels handles both sides of a project in Dallas and the Park Cities — the design and the build.