Interactivity in a proposal is usually treated as decoration, added after the argument is already written. Used properly it is a structural tool. It lets several readers with different concerns each take their own path through one submission without the argument being diluted for any of them.
Architects are generally good storytellers about buildings and generally poor storytellers about projects. The difference matters. A story about a building is about light, material, and experience. A story about a project is about a client's problem, the reasoning that resolved it, and why this team can be trusted to deliver it. Clients buy the second one.
Interactive formats change what is possible here, but not in the way the word "interactive" suggests. The value is not that things move. It is that a single document can serve a committee whose members need different things, without becoming a compromise that serves none of them.
The problem interactivity actually solves
A linear document forces one order. That order is a compromise, because the readers are not the same person.
Consider a mid-size civic project. The facilities director needs to understand phasing around a building that stays operational. The finance lead needs cost certainty and what drives variance. The community liaison needs to know what the neighbours will see. The board chair will spend four minutes and wants to know whether this firm is credible and what it costs.
Write that linearly and you make a choice about whose concern comes first, and everyone else scrolls. Write it with a spine and branches and each of them reaches their concern in one move, while still passing through the argument you most want them to absorb.
That is the actual mechanism. Everything else about interactivity is secondary.
Structure: a spine with branches
The structure that works most reliably is a strong linear spine with optional depth hanging off it.
The spine is the complete argument, readable start to finish, in a fixed order you control. A reader who does nothing but scroll receives the entire case. This is not a fallback for unsophisticated readers. It is the primary path, and most readers will take it.
The branches are depth available on demand: the full project sheet behind a thumbnail, the navigable model behind a still, the detailed phasing behind a summary diagram, the full CV behind a bio line.
The rule that keeps this honest is that nothing load-bearing lives only in a branch. If the reader has to discover an interaction to encounter something essential, you have gated your own argument behind a guess about their behavior. Branches reward curiosity. They never carry the case.
A spine that works for most pursuits
The order below is not the only one, but it fails less often than the conventional one.
1. Their problem, in their language. Specific enough that it could not be sent to another client. This is the only screen you can be sure everyone sees.
2. Your read on it. The insight that reframes the problem. This is the single highest-value paragraph in most proposals and is usually missing entirely. It is where you demonstrate that you understood something they did not spell out.
3. The response. The design, led by the resolved outcome rather than the process that produced it. This is where spatial media earns its place.
4. Evidence. Two or three projects that genuinely resemble this one in the dimension that matters, whether that is type, constraint, delivery method, or client structure. Not your best work. Your most relevant work.
5. The team. Faces, names, and specifically who will be present after award. Selection panels are choosing people as much as firms.
6. Fee and schedule. Reachable directly, designed with the same care as everything else, and explained rather than merely stated.
7. What happens next. A concrete first step. Proposals routinely end with a thank you and no proposed action.
Where spatial media belongs
The most common mistake with 3D and video is treating it as a gallery. A section at the end labelled "visualization", containing everything the team produced.
Placement is what makes spatial media argumentative rather than decorative. A walkthrough placed next to the phasing discussion is answering a question the reader currently has. The same walkthrough in a gallery at the end is a slideshow.
A rough guide to which medium does which job:
- Still images carry atmosphere and material. They are the most reliable across devices and connections, and they are what survives being printed for a board pack.
- Video controls the emotional beat. Use it where you want a specific sequence experienced in a specific order and at a pace you set.
- Navigable 3D answers questions you did not anticipate. Use it where the client's real concern is spatial and specific, such as sightlines, adjacency, or how a level reads at ground.
- 360 panoramas give a strong sense of a single space cheaply, and travel well to readers on slower connections.
The test for including any of it is whether it answers a question the client actually has. Impressive media that answers nothing costs attention without returning any.
When interaction hurts
Worth stating plainly, because this gets oversold.
When it hides essentials. Covered above, and it is the most common failure. If the fee is behind a click, some readers will not find it, and they will not assume the best.
When it demands a device or a connection you cannot count on. Anything that fails on a phone on cellular is a liability, because that is a real reading condition for senior stakeholders.
When the interaction is the message. If a reader's takeaway is that the proposal was impressive technically, you have spent their attention on your tooling rather than on their project. This is a particular risk for firms who have just adopted a new capability.
When procurement requires a document. A large share of public and institutional work mandates a paginated submission with prescribed formatting. That requirement does not care about your format. Any interactive submission for that market needs a compliant PDF export, otherwise you are running two workflows.
Writing the reframe
Step two of the spine is the part firms most often skip, so it deserves specifics.
The reframe is a short statement that shows you understood the problem better than it was described to you. It usually takes one of a few shapes:
- The stated problem is a symptom. "You have described this as a space shortage. Our read is that it is a scheduling problem that shows up as a space shortage on Tuesdays."
- The constraint is actually the opportunity. "The requirement to stay operational through construction is what makes the phased approach viable and the single-phase approach expensive."
- The real risk is elsewhere. "The design is straightforward. The risk on this project is the approvals sequence, and that is what our programme is built around."
What makes these work is that they are falsifiable. A client can disagree. That is the point. A proposal that no one could disagree with has not said anything, and the generic version of this section, which promises a collaborative process and attention to detail, is exactly that.
A practical build sequence
For a firm doing this for the first time, the order of operations matters more than the tooling.
- Write the spine as plain text first. Before any layout, before any images. If the argument does not hold as a page of prose, no amount of interaction rescues it.
- Identify the three or four readers. Name them by role and write down each one's actual concern. This determines what the branches are.
- Place media against questions. For each piece of visual content, write the question it answers. Anything with no question attached comes out.
- Build the spine, then add branches. In that order. Branches added first tend to become the structure by accident.
- Read it on a phone, on cellular. Then hand it to a colleague who has never seen the pursuit, give them four minutes, and ask them what the client's problem is and what the fee is.
- Export the PDF and check it against the RFP's formatting rules. Page limits, margins, section order, file naming.
Measuring whether it worked
The advantage of a delivered-as-a-link format is that the guessing stops. You can see which sections held attention, which stakeholders opened it, and where readers stopped.
Two cautions on using that data well. First, it is diagnostic, not a score. A section with low dwell time might be failing, or it might be admirably concise. Second, optimizing for attention and optimizing for clarity are different objectives, and they diverge sooner than people expect. The useful question is not which section performed best. It is whether the section you needed a specific person to read was the section they actually read.
Further reading
About the Author

Kitae Kim
Architect with 10 years of experience in design and client communication. Co-founder of Foveate, where he builds proposal and presentation tools for AEC firms. Former studio lead who saw too many winning designs lose to worse proposals.
Related Articles
Architecture Business Development: How to Turn Your Portfolio Into a Prospecting Tool
Your portfolio is the most expensive business development asset your firm has ever produced. It's also the most passive. Here's how the firms winning the most competitive work have turned their case studies into an active intelligence system.
What Architecture Presentation Tips Actually Win Projects?
Clients don't buy design. They buy confidence. Your presentation's job is not to show your work—it's to make clients believe you understand their problem, you can solve it, and working with you will be good.