The architect's proposal framework: five pillars that make a fee feel worth it

Clients rarely choose an architect on the fee letter alone; they choose the practice whose proposal shows it already understands the project. This framework gives your proposal a reading order that sells judgement first and deliverables second.

The framework

Structure your proposal around five pillars, not a list of services

The core pillars that an architect must consider in their design are function, structure and context. The pillars of a proposal that sells that design are different: frame the brief, show your design thinking, phase the scope, price each phase with clear exclusions, and make acceptance easy.

Search for an architectural proposal and you find the same thing again and again: a list of phases, a payment schedule and a page of exclusions. Those parts matter. Without them you are exposed on scope, on fees and on liability. But they describe a contract, not a choice. A homeowner or developer comparing practices reads that page last, after they have already decided who they trust.

The proposals that feel considered do something else first. They show the client their own project, understood better than they could put it themselves. Then they show how the practice thinks. Only after that do they lay out what gets delivered, when and for what fee. The order is the argument: judgement first, deliverables second, paperwork last.

The five pillars, in reading order

Each section supports a specific decision the client is making as they read.

  1. Frame the brief

    An executive summary that restates the project in the client's own terms, including what they care about but did not say.

  2. Show the design thinking

    Site reading, constraints and an early point of view, plus the past projects and people relevant to this job.

  3. Phase the scope

    Schematic design, design development, construction documents, bidding and construction administration, each with its deliverables.

  4. Price each phase, with exclusions

    A fee tied to every phase, payment milestones, and a plain-language list of what is not included and how extras are charged.

  5. Make acceptance easy

    Short terms, a clear next step and a way to approve or sign without printing, scanning and emailing a document back.

This is also the practical answer to how to structure a proposal for a project. The brief comes first because it earns attention. Thinking comes second because it earns trust. Scope and price come next, when the client is ready to judge value rather than cost. Acceptance closes the document, so the decision and the action sit on the same page.

Compare that with a standard fee letter, which opens with the practice's services and closes with a signature block. It answers the question "what do you do?" when the client is asking "do you understand what I need?"

Brief and thinking

Open with the client's brief and your design reasoning

Restate the brief in the client's own words, then add what you noticed that they did not: a site constraint, a planning risk, an opportunity in the budget. Follow it with only the past projects and team members that match this job, so the client sees proof, not a brochure.

The executive summary is the page clients read in full, so give it real work to do. Open with their goal in their own vocabulary. If they said "more light in the kitchen and somewhere for the kids to do homework", say that, not "enhanced daylighting and flexible living space". Then add the thing they did not mention: the north-facing garden that makes a rear extension darker than they expect, or the conservation area that shapes what the roof can do. That paragraph is where the client decides you are worth the fee.

Next, show a point of view before any fees appear. A site analysis sketch, a massing diagram or a pair of precedent images can carry more weight than a page of text. Use visuals to show thinking, not to decorate. Every image should answer a question: why this orientation, why this height, why keep that wall.

The firm profile belongs here too, but cut it down. Pick the past projects closest to this brief in type, scale and constraint, and name the people who will actually run the job. A long list of awards and sectors reads as a brochure. A short, relevant selection reads as evidence.

What the brief and thinking sections should prove

  • You heard the brief

    The summary restates the client's goals in their own words, without architectural jargon.

  • You saw something they did not

    At least a single constraint or opportunity the client had not raised, explained in plain language.

  • You have done this before

    A short selection of past projects that match the type and scale, with what each taught you.

  • They know who they will work with

    Names and roles of the people running the project, not a full staff list.

Scope and price

Phase the scope and tie every fee to a deliverable

Split the work into the standard phases, list what the client receives at the end of each, and attach a fee and a payment milestone to every phase. Then write the exclusions and additional services in plain language, with a contingency note on time and cost, so nothing surprises the client later.

Phases give a client something they rarely get from professional services: a map. Use the names they will hear from builders and planners, and explain each in a sentence. Schematic design settles the big moves. Design development fixes materials, structure and services. Construction documents produce the drawings a contractor prices and builds from. Bidding helps the client compare tenders. Construction administration covers site visits, queries and sign-off while the build happens.

Tie a fee to each phase and a payment to the end of each, so the client pays for things they can see. Whether you charge a fixed fee per phase or a percentage of construction cost, show how the total breaks down. Clients accept a higher number more easily when they can see what each part buys.

Construction administration deserves its own line. Many practices price it separately, as a time-based fee, because nobody knows yet how long the build or the contractor will take. Saying so up front avoids an awkward conversation halfway through the job.

Phases, deliverables and what usually sits outside the fee

PhaseDeliverablesOften excluded or extra
Schematic designConcept plans, elevations, sections and perspective sketchesExtra design options beyond those agreed
Design developmentDeveloped drawings, outline specification, planning applicationPlanning fees, surveys, specialist consultants
Construction documentsSigned construction drawings and detailsRevisions after sign-off, detailed cost estimates
BiddingTender package, contractor shortlist, tender comparisonNegotiating more contractors than agreed
Construction administrationSite visits, contractor queries, completion sign-offVisits beyond the agreed schedule, travel costs

Write exclusions as sentences, not legal fragments. "Planning application fees are paid by you directly to the council" is clearer than "Statutory fees excluded". Name the additional services a client is likely to need, such as a structural engineer, a party wall surveyor or a cost consultant, and say how you charge if they ask you to arrange them. Then add a short contingency note: a margin on time and cost for things nobody controls, like weather, material prices and planning decisions.

Worked example

Build a proposal step by step: a house extension example

Here is an illustrative house extension proposal built with the framework, from the brief reframe to the fee table and exclusions. The practice, client and figures are invented to show the method; replace them with your own fee history and local costs before you send anything.

Illustrative example: a couple want a 180 m² family home extended at the rear, with a larger kitchen and a ground-floor home office. The fictional practice writes the brief reframe like this.

Brief reframe: "You want a kitchen the whole family can use at once, and a quiet room for working from home. Your garden faces north, so we will bring light in from above rather than from the back wall, and keep the home office at the front where it is calmest."

Notice what that paragraph does. It uses the client's words, adds a site insight and previews a design move without drawing anything yet.

Illustrative example: fee by phase for a rear extension

Example figures only, for a fictional practice and project.

PhaseDeliverablesExample feePaid when
Schematic designConcept plans and sketches, client review meeting£3,000Concept approved
Design developmentDeveloped drawings, planning application£4,500Application submitted
Construction documentsConstruction drawings and details£5,000Drawings issued
BiddingTender package and comparison£1,500Contractor appointed
Construction administrationSite visits and sign-offCharged by the hourMonthly in arrears

Exclusions in the example, and why each is there

  • Planning and building control fees

    Paid by the client to the authority, so the practice never carries a cost it cannot control.

  • Structural engineer and surveys

    Appointed by the client on the practice's recommendation, which keeps liability with the specialist.

  • Extra design options

    Charged by the hour once the agreed options are explored, so revisions stay a choice, not a habit.

  • Contingency on time and cost

    A plain note that weather, material prices and planning decisions can move dates and budgets.

Illustrative example: the same scope, before and after

SectionFlat fee letterFramework version
OpeningPractice history and servicesThe client's brief, reframed with a site insight
ThinkingNoneSketches and relevant past projects
FeeA single totalA fee per phase with deliverables and payment points
ExclusionsA legal list in small printPlain sentences with the reason for each
CloseSign and returnA clear next step and an online approval

Acceptance

Make acceptance easy with clear terms and a web proposal

Keep terms short and readable, then let the client approve in the document itself. ChatGPT cannot draw architectural plans you could build from, but it can help tidy proposal text; your site reading, design judgement and fees still have to come from the practice.

Terms protect you, so keep them, but write them for a client to read. Cover client responsibilities such as information, access and timely decisions. Cover delays outside your control, rising material prices, insurance on site and what happens if the project pauses. A page of short paragraphs beats a dense legal schedule, and you can link to full terms for anyone who wants them.

Then remove every step between "yes" and a signed agreement. This is where Formlio fits. You build the proposal from blocks: the brief, a gallery of sketches, a timeline of phases, a pricing block with the fee by phase, and an agreement block where the client signs with an e-signature or a Slide-to-Approve button. It opens as a web page on any device, in your own fonts and colours.

A PDF goes into a black box. A Formlio document reports back: who opened it, what they read, when they signed. You get a notification when the client opens the proposal and can see which sections they spent time on. If they lingered on the fee table, call about the fee. If they went straight to the sketches, talk about the design. Follow up when they are reading, not a week later.

As for AI, treat it as an editor. It can help you turn rough notes into clean paragraphs or suggest a clearer order for your terms. It cannot read a site, weigh a planning risk or decide what your time is worth.

A laptop on a meeting table showing architectural drawings beside rolled plans
Let the client move from reading to approving in the same document.

Before you send it

  • The brief reads like the client wrote it

    Their goals, their words, plus the insight that shows you looked closely.

  • Every fee has a deliverable

    Each phase lists what the client receives and when the payment falls due.

  • Exclusions are plain sentences

    Each item says who pays and how extra services are charged.

  • The next step is obvious

    The client can approve or sign at the end of the document without printing anything.

Questions

Frequently asked questions

Not plans you could submit or build from. It can describe layouts and help with text, but measured drawings, structural logic and planning judgement still need an architect and proper drawing software.

Typically schematic design, design development, construction documents, help with bidding, and construction administration. Surveys, specialist consultants, statutory fees and extra revisions are usually excluded or charged separately.

Either can work. A fixed fee per phase is easier for homeowners to understand; a percentage suits projects where the budget is still moving. Whichever you choose, show how the fee splits across phases.

Planning and building control fees, surveys, structural and other specialist consultants, detailed cost estimates, revisions after sign-off and site visits beyond an agreed schedule, each written as a plain sentence.

Long enough to cover the brief, your thinking, the phased scope, the fee and the terms, and no longer. Cut generic firm history and keep only past projects that match the job.

Follow up when the client is actually reading it, and talk about the section they spent time on. With Formlio you get a notification when the proposal is opened and can see which sections held their attention.

Template

Send a proposal clients can approve

Build your brief, phases and fees from blocks, share them as a link, and let the client sign inside the document.