Architecture Proposal Template (US)
Updated on August 8, 2026
An architecture proposal is the document a practice sends a prospective client to win the work: what you understand the project to be, what you will do, what you will deliver, what it costs, and how long the offer stands. It is a sales document with legal consequences, because the moment the client signs the acceptance block, something has been agreed — and the whole question is what.
That is the defect in the template this one replaces. It carries an acceptance paragraph in which the client agrees to "the terms and conditions outlined in the above proposal" and to adhere to the timeline and payment schedule — while containing no terms and conditions at all: no exclusions, no assumptions, no change control, no cancellation, no intellectual property, no liability, no dispute route. It also prints two different signature blocks for the same acceptance and stamps "Private and Confidential" on the cover without a confidentiality clause anywhere inside. This template fixes all of that and asks you to state, explicitly, whether acceptance forms a contract or leads to one.
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Architecture Proposal
- Prepared for:
- ,
- Prepared by:
- ,
- Contact:
- Licence:
- Project:
- ,
- Proposal reference:
- Date:
- Valid until:
This proposal, its concepts, drawings and pricing are confidential and are provided for the purpose of considering this appointment only.
1. Our Understanding of the Brief
2. Scope of Services and Deliverables
Each phase includes of revision. Further revisions, and any change to the brief, scope, quality or budget after a phase has been approved, are additional services.
3. Exclusions
The fee does not cover the following, which are provided by others or as additional services if requested: .
4. Assumptions
This proposal is priced on the following assumptions: . If an assumption proves incorrect, we will tell you promptly and the affected work will be treated as an additional service, priced before it is carried out.
5. Indicative Programme
. Durations are indicative and depend on the timing of your decisions and approvals and on the timescales of review authorities and third parties. They are not guaranteed dates.
6. Fee
Our fee for the scope described above is a fixed fee of .
Payment schedule: . Invoices are payable within days. Overdue amounts may bear interest at , subject to any maximum permitted by applicable law. . Additional services are charged at and confirmed in writing before work starts.
7. Estimated Construction and Materials Cost
The estimated cost of construction, materials and equipment for this project is . This is separate from our fee. It is a professional opinion based on experience and current market information, not a quotation or a guaranteed price, and we do not control the cost of labour, materials or equipment or the way contractors price work. If tenders exceed the budget we will work with you to review the scope, specification or program, and re-design for that purpose is an additional service.
8. Changes
Either of us may propose a change to the scope, programme or deliverables. We will confirm the effect on fee and programme in writing, and the change takes effect once you approve it in writing. We do not carry out chargeable work outside this proposal without that approval.
9. Confidentiality and Intellectual Property
We will keep your brief, budget, site information and business information confidential. This proposal and everything in it, including concepts, sketches, drawings and pricing, remains our property and our copyright. You may use it to evaluate this appointment. No licence to use, build from, develop or share any concept in it with another designer or contractor arises unless we are appointed and our fees are paid.
If we are appointed, we may photograph the completed project and publish it in our portfolio, website, award entries and marketing, excluding any information you have told us in writing is confidential.
10. Validity and Acceptance
This proposal is open for acceptance until . After that date it may be withdrawn or revised, including the fee and the estimated construction cost.
Signing below accepts this proposal and forms a contract between and on the terms set out in it, including the scope, exclusions, assumptions, fee, payment, change, confidentiality and intellectual property terms above.
Accepted for and on behalf of by , .
Client
Date:
For the practice
Date:
Decide what signing actually does
There are two honest ways to run a proposal, and they need different documents. In the first, acceptance forms a contract on the terms in the proposal — which means the proposal must carry enough terms to be a contract: scope, fee, payment, change control, liability, termination and governing law. In the second, acceptance is a commitment in principle and the parties then sign a full owner-architect agreement, with the proposal's scope and fee carried into it.
This template makes that a choice at the top and writes the acceptance wording to match. A proposal that quietly does the first while looking like the second is how small practices end up bound to a scope they never priced properly, with no termination clause to get out of.
It also fixes the mechanical problem: one acceptance block, with the signer's name, title, date and signature. Two blocks for one acceptance, as the source has, invites the wrong person to sign the wrong one.
Scope, exclusions and assumptions do the real work
Most disputes on small architectural projects are not about the fee. They are about whether something was in the fee. The cure is not a longer scope list but an explicit exclusions list and a stated set of assumptions — the site is level and serviced, an existing survey is available, one planning submission is allowed for, structural and MEP engineering is by others, no historic or environmental designation applies, and so on.
Assumptions matter because they convert a hidden risk into a visible, priced one. If an assumption turns out to be wrong, the proposal already says what happens: the item becomes an additional service at the stated rate, rather than an argument about what a reasonable person would have expected the fee to include.
The template also asks for deliverables per phase. "Conceptual design" means very different things to an architect and to a homeowner. Naming the outputs — site analysis, two concept options, one revised concept, a set of drawings at a stated scale, a specified number of visualisations — is what makes the phase a promise instead of a heading.
Fees, budgets and the difference between them
The template keeps two numbers apart that the source template runs together: the practice's fee for professional services, and the estimated cost of construction, materials and equipment. They are different in kind. The fee is what you are quoting; the construction budget is an estimate of somebody else's cost, based on today's market, and it is not a price you are underwriting.
Where the practice procures materials or equipment for the client, the proposal has to say who contracts with the supplier, who holds title, and whether the practice adds a handling charge or markup — and if so, at what rate. Silence there is where the trust goes. The source template invoices every approved expenditure to the client without disclosing any of that.
Payment terms complete the picture: a schedule tied to phases or dates, payment days, and a stated late-payment rate rather than a floating blank percentage. Sales tax treatment gets a line too, because whether design services and reimbursed materials are taxable varies by state and by what exactly is being supplied.
Validity, confidentiality and the ideas in the proposal
A proposal without an expiry date is an open offer against costs that move. The template sets a validity date and says what happens after it: the proposal may be revised, and rates or the construction budget may change. On longer engagements it also lets you flag annual rate review, so an escalation later is not a surprise.
Confidentiality runs both ways. The client's brief, budget and site information stay confidential; so does the proposal, including its concepts, sketches, approach and pricing. The practice keeps copyright in everything in the proposal, and the client does not get a licence to build from or hand on any concept unless and until the engagement proceeds and fees are paid. That single clause is the difference between a competitive pitch and free design work.
Finally, where the client is a consumer rather than a business, the template can add a cancellation note. Home-improvement and door-to-door contracting statutes in a number of states give homeowners a cooling-off right and require particular written contract contents, and a proposal that turns into the contract on signature is exactly where those rules bite.
Section-by-section guide
- Cover and understanding of the brief
- Restates what you understand the client wants, so a misunderstanding surfaces before it is priced rather than after it is built.
- Scope of services by phase
- What the practice will do in each phase, with named deliverables and the number of options and revisions included.
- Exclusions
- What the fee does not cover — surveys, engineering, specialist consultants, planning appeals, interior fit-out, repeat submissions. The most valuable list in the document.
- Assumptions
- The facts the price depends on. If one is wrong, the proposal already says the affected item becomes an additional service at the stated rate.
- Programme
- Indicative durations per phase, expressed as dependent on client decisions and authority timescales rather than as guaranteed dates.
- Fee and payment schedule
- Fixed, hourly with a cap, or percentage of construction cost, with the payment schedule, payment days, late-payment rate and sales-tax treatment.
- Construction budget and materials
- Keeps the estimated construction and materials cost separate from the fee, discloses any markup or handling charge, and states who contracts with suppliers.
- Changes and additional services
- How a change is requested, confirmed in writing and priced, so nothing gets done first and argued about afterwards.
- Intellectual property in the proposal
- Concepts, sketches and drawings in the proposal remain the practice's property, with no licence to use them unless the engagement proceeds and fees are paid.
- Validity and acceptance
- How long the offer stands, and one clean acceptance block that states whether signing forms a contract or leads to a separate agreement.
US checklist before you send it
A proposal is a commercial document, but these points have legal consequences.
Be clear whether acceptance creates a contract
If signature is intended to form the contract, the proposal needs the terms of one. If it is a commitment in principle, say so and name the agreement that will follow. Do not leave the client to guess.
Check state licensure before offering architectural services
Who may offer and provide architectural services, use the title architect and seal drawings is regulated by each state's licensing board, and firm registration may be needed as well as individual licensure.
Do not present an estimate as a price
An estimate of construction or materials cost is a professional opinion based on current market conditions, not a guaranteed price. Say so in the proposal, and say what happens if actual costs come in higher.
Disclose any markup on procured goods
If the practice buys materials, equipment or services on the client's behalf, state who contracts with the supplier, who holds title, and the handling charge or markup rate applied.
Check home-improvement rules for residential clients
Several states require specific written contract contents, deposit limits and a cooling-off period for work on a consumer's home, and those rules can apply where a signed proposal becomes the contract. Confirm the position in your state before sending.
Get the sales-tax treatment right
Whether professional design services, reimbursed materials and procured goods are subject to sales or use tax depends on the state and on exactly what is supplied. State the treatment in the fee section rather than leaving it to the invoice.
Protect the ideas you are giving away
Concepts and sketches in a pitch are original work. Keep copyright in them expressly, grant no licence until the engagement proceeds and fees are paid, and mark the proposal confidential in a clause rather than only on the cover.
How to build this architecture proposal
- Restate the brief. Summarise the project, the site and what you understand the client wants to achieve, so any misunderstanding surfaces now.
- Set scope, exclusions and assumptions. List the phases and deliverables, then the exclusions and the assumptions the price depends on.
- Price the work. Choose a fixed fee, hourly with a cap, or a percentage of construction cost, then set the payment schedule, payment days, late rate and tax treatment.
- Separate the construction budget. Give the estimated construction or materials cost as an estimate, and disclose any handling charge if you procure on the client's behalf.
- Set validity and acceptance, then send. Choose how long the offer stands and whether signing forms the contract, then download the DOCX or PDF and send it for signature.
Frequently asked questions
Does signing an architecture proposal create a binding contract?
It can, and that is exactly why the document should say which it is doing. If the proposal contains the terms of the deal and the client signs an acceptance, a contract is generally formed on those terms. This template makes you choose between that and a proposal that leads to a separate owner-architect agreement, then writes the acceptance wording to match.
What is the difference between a proposal, a quote and an estimate?
A proposal explains the approach, scope and terms and asks for the work. A quote is a fixed price for defined work. An estimate is an informed opinion of likely cost that is expected to move. The template keeps the professional fee, which may be fixed, separate from the construction budget, which is an estimate.
How long should a proposal stay open?
Long enough for the client to decide and short enough that your rates and the construction market have not moved — commonly two to eight weeks. The template requires a validity date and states that after it the proposal may be revised, which is far safer than an open-ended offer.
Should I include exclusions, or does it look negative?
Include them. Exclusions are the single most useful part of a proposal, because almost every fee dispute is about whether something was in the fee. A clear exclusions list plus stated assumptions reads as professional, not defensive, and it gives you a priced route when an assumption turns out to be wrong.
Who owns the concepts in a proposal that is not accepted?
The practice does, and the template says so expressly: copyright in the concepts, sketches and drawings stays with the practice, and no licence to use them arises unless the engagement proceeds and fees are paid. Without that clause, a pitch can become free design work for whoever the client hires next.
Can I charge a markup on materials I buy for the client?
You can, provided you disclose it. State who contracts with the supplier, who holds title and risk, and the handling charge or markup rate. The template has a field for it. Invoicing procured items to a client without disclosing the basis is where these relationships break down.
What if construction bids come in over the estimated budget?
The template treats the construction budget as an estimate, not a guarantee, because the practice does not control labour rates, material prices or bidding conditions. It also states the remedy: the parties review the scope, specification or program together, and re-design requested for that reason is an additional service.
Is a proposal to a homeowner treated differently from one to a business?
Often, yes. Consumer and home-improvement statutes in a number of states set required contract contents, deposit limits and cancellation rights for work on a person's home, and those apply where a signed proposal is the contract. The template can add a cancellation note, but check the rules for your state before you rely on it.
Related templates
Disclaimer
This template and guide are for general information only and are not legal, tax or professional-practice advice, and no attorney has reviewed them. Architectural licensing, consumer home-improvement and sales-tax rules vary by state — check them before you send a proposal.
