FAQ's

Here are answers to the questions we’re asked most frequently. Click on any question to see the answer.
What is required for a building department permit?

In general the following is required (some jurisdictions may require more)

  1. Floor plans, elevation and sections of the proposed structure. (Remodel or new.)
  2. Washington State Lateral Analysis stamped by a licensed architect or engineer.
  3. Gravity load analysis (beam calculations). (No stamp required.)
  4. Energy calculations per Washington State Energy Code (WSEC).
  5. Site plan of proposed residence or changes.
  6. Manufactured Truss Engineering stamped by a licensed engineer.
Designs Unlimited provides services 1 through 5. Services 1 through 4 are included with any reissue or custom home that is in the current code cycle. Service 5 is hourly per project, with the norm being two to three hours total. Requirement 6 can be met by the contractor selecting a Truss Manufacturer that will provide the calculations.
Depending on the number and / or complexity of the changes, it is usually more cost and time effective to revise a stock house plan. However, the design control is much greater on a custom home. For example, revising a stock house plan may get the house close to what you want, but a custom home would be exactly what you want.
Over 1000 plans. These include a wide variety of house styles including ramblers, split level homes, to story homes, duplexes, garage plans, and more. View plans now.
You can purchase a stock plan here; it takes 10 to 15 days for processing, plan check and delivery.
You can purchase a stock plan that can be revised here; it usually takes 10 to 20 days for processing, revision, plan check and delivery.
A custom home design usually takes three weeks from the preliminary design meeting. The amount of time varies depending on the size, complexity and when the final approval to proceed is given.
Yes. You can choose from dozens of plans that have IRC pre-approval from City of Kent and King County DDES. Reissues of the plans have additional costs for permission to use the Basics.
We cannot guarantee that Designs Unlimited plans will pass through your local building department without a correction letter or comments from a building plans examiner. We do warrant our plans in Washington state (within reason) but additional fees may be required to answer out-of-the ordinary questions from your local building department.
A general rule of thumb is 1-3% of construction costs. If your land or situation is unique these proportions change.
Yes. We can bring your stock plans up-to-code for you or recommend an architect near you who can do it for you. Some people like the simplicity of having us do it; others prefer to work with an architect in their local area.

For answers to other questions related to stock, modified or custom house plans, commercial design or drafting services please call or use our simple on-line contact form.