Architectural Plans and Copyright: Who May Use the Drawings When a Project Changes Hands

Last updated: November 2026. Reviewed by Pavel Kolmogorov, California business litigation attorney (State Bar No. 321018).

Architectural plans can be protected by copyright twice: as drawings, and as the design of the building. Copyright starts with the author, and a transfer generally needs a signed writing, so paying for plans does not buy it. (17 U.S.C. §§ 201(a), 204(a).) An owner who changes architects may still hold a license to finish the project. A California statute separately bars using an architect's plans without written consent. (Bus. & Prof. Code, § 5536.4.) Kolmogorov Law, P.C. litigates these disputes for owners, developers, builders, and design firms.

Call (909) 235-6116 or contact us online to discuss a dispute over plans before the next set is drawn.

What copyright protects in a set of plans

The Copyright Act lists architectural works as a category of protected work. (17 U.S.C. § 102(a)(8).) An architectural work is the design of a building as embodied in any tangible medium, including the building itself, plans, or drawings. It covers the overall form and the arrangement and composition of spaces and elements. It does not cover individual standard features. The plans are also protected as technical drawings. (17 U.S.C. § 101.)

Copyright never extends to an idea, a method, or a system, however it is drawn. (17 U.S.C. § 102(b).) A room count, a setback the code requires, or a common layout concept belongs to no one. And protection for building designs, as distinct from drawings, generally reaches only works created on or after December 1, 1990.

Who owns the plans

Copyright vests first in the author, and for a work made for hire the employer is considered the author. (17 U.S.C. § 201(a), (b).) A transfer of copyright ownership, other than by operation of law, is not valid unless it is in writing and signed by the owner of the rights or the owner's agent. (17 U.S.C. § 204(a).) Payment alone does not do that. Our page on who owns a contractor's work explains the rule for other commissioned work.

The design agreement is the first document to read. With listed exceptions, California requires an architect to use a written contract with a client. The contract must include a statement identifying the ownership and use of the instruments of service. (Bus. & Prof. Code, § 5536.22, subds. (a)(7), (b).) That statement may keep ownership with the architect and give the owner a license for the project, sometimes on the condition that the fees are paid.

The implied license to finish the project

What if the contract is silent or thin? A nonexclusive license is not a transfer of ownership, so it does not have to be in writing. It can be granted orally or implied from conduct. (Foad Consulting Group, Inc. v. Azzalino (9th Cir. 2001) 270 F.3d 821, 825-826.)

In that case an engineering firm prepared a plot plan and other drawings for a shopping center under a contract with a $175,000 fee. The project changed hands, and the new developer hired another firm to finish the plans. The Ninth Circuit held that state contract law decides whether an implied license was granted. Applying California law, it found one. The contract was for documents to build that project, the fee was substantial, and nothing in it required the first firm's consent before construction or barred others from modifying the plan. The later use stayed within the project, so it did not exceed the license. (Id. at pp. 824, 828-832.)

A contract that forbids reuse or modification without consent, or that ties the license to payment, can lead to a different result. Our page on license disputes covers use beyond a license's scope.

California's written consent statute

California has a statute aimed at this dispute. No person may use an architect's instruments of service without the architect's consent in a written contract, written agreement, or written license specifically authorizing that use. The instruments of service are the architect's planning, studies, designs, working drawings, and specifications. (Bus. & Prof. Code, §§ 5500.1, subd. (b)(2), 5536.4, subd. (a).)

The statute also restrains the architect. An architect may not unreasonably withhold consent from a person for whom the architect provided the services. Consent may be withheld for cause, which includes lack of full payment and failure to fulfill the conditions of a written contract. (Bus. & Prof. Code, § 5536.4, subd. (b).)

Is there a writing that authorizes the use? Has the architect been paid in full? If the fees are disputed, is the refusal reasonable? The statute's list of causes is not exclusive. Its text does not mention copyright or implied licenses.

If you are the owner or developer

• Read the license and termination clauses before the change of architects is announced.
• Pay what is undisputed, and put any dispute over the balance in writing.
• Ask for written consent to use the plans, and cite the duty not to withhold it unreasonably.
• Keep the replacement firm from copying or tracing the drawings until the right to use them is settled.

Altering or demolishing an existing building is a different matter. The owner of a building that embodies an architectural work may alter or destroy it without the consent of the author or copyright owner. (17 U.S.C. § 120(b).)

A company that buys a project in progress should get the design contracts and a consent or license in its own name. In the Ninth Circuit case the new developer could rely on the original license even though the contract barred assignment without consent. The court left open whether that assignment was a breach.

If you are the design firm

The copyright in plans the firm's employees prepared generally stays with the firm unless a signed writing says otherwise, and unpaid fees are cause to withhold consent under the California statute.

The fee claim and the copyright claim are separate. An infringement suit over a United States work generally cannot be filed until the work is registered. The timing of registration also affects statutory damages and attorney's fees. (17 U.S.C. §§ 411(a), 412.) Our page on registration before a lawsuit explains both rules.

Two limits apply to claims against others. Photographs of a constructed building that is visible from a public place do not infringe the design. (17 U.S.C. § 120(a).) Against a competitor who copied a design, the claim reaches the overall form and arrangement, not standard features. Our page on the elements of copyright infringement explains how copying is proved.

What to bring to the first meeting

• The design agreement, every amendment, and any termination letter.
• Invoices, payment records, and the amount in dispute.
• The drawing sets, with dates and title blocks, and the permit set if one was filed.
• Emails about ownership, reuse, or consent.
• For a purchased project: the purchase agreement and whatever it says about the plans.

Frequently asked questions

We fired our architect mid-project. Can we finish the building with his plans?

Possibly, but check two things first. Under copyright law the owner may hold an express or implied license to complete the project, depending on the design contract. Separately, California Business and Professions Code section 5536.4 bars using an architect's plans without written consent. The architect may not unreasonably withhold that consent from a client but may refuse for cause, such as unpaid fees.

Who owns the building plans, the owner or the architect?

Usually the architect or the architect's firm, unless a signed writing transfers the copyright. Under 17 U.S.C. § 204(a), a transfer of copyright ownership, other than by operation of law, must be in writing and signed by the owner of the rights or the owner's agent. Paying for the design gives a California owner whatever license the contract or the circumstances provide, not the copyright itself.

Can an architect stop construction over unpaid fees?

An architect can refuse consent to further use of the plans when fees are unpaid, because California Business and Professions Code section 5536.4 treats lack of full payment as cause. Whether a court would halt a project is a separate question that depends on the contract, the license, and the harm on each side.

We bought a half-finished project from another developer. Do we have the right to use the plans the seller paid for?

Not automatically. The copyright usually stays with the architect or its firm unless it was transferred in a signed writing, and a license granted to the seller may or may not pass to a buyer. In one Ninth Circuit case decided under California law, the license passed to the new developer despite a clause barring assignment without consent, and the court left a breach claim open. A California buyer should obtain the design contracts and written consent in its own name.

Can I remodel a building without the original architect's permission?

Under 17 U.S.C. § 120(b), the owner of a building that embodies an architectural work may alter or destroy the building without the consent of the author or copyright owner. That covers the building itself. Copying the original drawings for the remodel is a different act. In California it raises the license and written consent questions that apply to any use of an architect's plans.

Talk to a California attorney about a dispute over plans

If a dispute over plans is holding up a project or a payment, call (909) 235-6116 or contact us online. Kolmogorov Law, P.C. is located in Irvine, California. See also our intellectual property litigation and construction disputes pages.

This page provides general information about federal copyright law and California law and is not legal advice. Outcomes depend on the design contract, the facts, and the court.