AI for architects: 8 prompts to paste, 6 tools with prices, and what 56% of practices use it for

Architects use AI first for visualization, then for code checks

RIBA's third AI Report, published 22 July 2026, asked the practices that use AI where they apply it. The survey ran in March and April 2026. Concept images came first, and the model itself came near the bottom:

Use is rising fast. In 2024, 41% of practices used AI at least occasionally; in 2026 it's 74%, and the share using it on every or most projects went from 6% to 31%. The survey is self-selecting, and RIBA says so: it calls the results "a good indication of AI and the profession, but not as definitive." In the US, the AIA's March 2025 study with Deltek and ConstructConnect found only 6% of architects use AI regularly in their jobs, and 8% of firms had built it into practice.

What the numbers don't show is better buildings. Only 17% of RIBA's respondents agree their designs are better because of AI, and 42% disagree. Productivity is where users see the gain: 73% report an improvement, and 57% of those assessing it report a positive return. So this page is built around time. Eight prompts follow, each for a job in the chart, and each one keeps the model away from the numbers you sign.

Which AI tool does each architecture job, and what does it cost?

A general chatbot does every writing job on this page, and a render tool does the images. Neither one reads your BIM model or knows your local code. Here are the published prices we read on 25 October 2026 on each vendor's own page:

Two lines in the fine print matter before you buy. Chaos says on its Veras page that use of AI credits "voids the right to a refund", so test on the first plan, not the yearly one. Midjourney says companies with more than $1,000,000 in yearly gross revenue must buy Pro or Mega, which also turns on Stealth Mode, so a firm that size starts at $60 a month whatever it renders.

Energy and daylight simulation is the job none of these tools does. Only 7% of RIBA's AI-using practices apply AI to building performance simulation, and 6% to environmental impact modelling. That work stays in the analysis software your engineer already runs. A chatbot can only explain the results you paste in.

Prompts for the brief, the design statement and the client email

These three jobs are words around a project, and they're where a chatbot saves an architect the most hours. RIBA counts 26% of AI-using practices on project briefing and 32% on practice management. Paste your notes as they are. Then make the prompt mark every number it didn't get from you.

Here are my notes from a first meeting with a client: [paste notes]. Turn them into a draft brief with four parts: the client's goals in their own words, a table of spaces with a target area for each, the constraints they named (budget, site, timeline, planning), and the open questions I need to ask next. Use only what is in the notes. If the client gave no area for a space, write [AREA?] and do not suggest one. List anything they said that conflicts with something else they said.

The last line earns its place. Clients ask for a big open kitchen and a tight budget in the same breath, and a list of conflicts is the agenda for the second meeting.

Write a design statement of 400 to 500 words for a planning or zoning submission. Project: [type, site address, size, number of units or floors]. Context: [street character, heights of the neighbors, materials nearby]. Design moves: [three to five decisions and the reason for each]. Write in plain sentences for a planning officer, not an architecture jury. Use only the facts I give you. Do not claim any policy compliance, energy figure or height I did not state. Mark any place where a policy reference belongs with [POLICY].

Draft a short email to my client about [the issue: a delay, a fee change, a consultant's finding]. Facts: [what happened, the date, the effect on the program or the fee, what we propose]. Under 150 words. Lead with what it means for them, then the reason, then one decision I need from them by [date]. No apology longer than one sentence. Calm, direct, no jargon.

Can AI check building codes?

AI can find the clause you need, but it can't tell you whether your design complies. A model recites the most common version of a rule. Your jurisdiction adopts one edition of its code, with local amendments, and the model doesn't know which. RIBA found 40% of AI-using practices already point it at compliance, and in the AIA study 90% of architectural professionals had concerns, with inaccurate outputs first on the list. Both numbers say the same thing: use it to read, and read it back yourself.

So the prompt below never asks "does this comply". It asks the model to quote. Upload the code chapter or the standard you're working to (a PDF of the adopted edition), then ask:

Attached is [the code chapter or standard, with its edition and year]. My question: [for example, the maximum travel distance to an exit for this occupancy, or the guard height at this landing]. Quote the exact section number and the exact text that answers it, then explain it in two plain sentences. If the attached document does not answer it, say so and name the section I should look at; do not answer from memory. List any exception or local amendment the text mentions.

The quote is your check. If the section number isn't in the document you attached, the model wrote it from memory, and that answer goes in the bin. RIBA's president, Chris Williamson, put the rule in one line in July 2026: "Professional oversight of design remains essential if tomorrow's buildings are going to be safe and sustainable."

Prompts for specifications, site minutes and RFIs

Spec writing is the job 24% of AI-using practices give to AI, and it's the one where a draft outline helps most. The model knows how a spec section is laid out. It doesn't know your products, so the prompt makes it leave them blank:

Draft an outline specification section for [work, for example aluminum curtain wall] in the three part format: Part 1 General, Part 2 Products, Part 3 Execution. Under each part, list the articles a section like this normally carries, with one line on what each one covers. Do not name any manufacturer, product, standard number or performance value; write [SPECIFY] where one belongs. At the end, list the five decisions I must make before this section can be written in full.

Here are my rough notes from a site visit on [date] at [project]: [paste notes, photos described in words]. Write site visit minutes with: attendees, what was observed by area, the issues found, and an action table with columns for action, owner and due date. Keep my wording on anything technical. Do not add an issue I did not note. Put any action with no owner under [OWNER?].

A contractor sent this RFI: [paste RFI]. The relevant drawing note and spec text are: [paste]. Draft a response under 150 words that answers the question, cites the drawing or spec reference I gave, and states whether the answer changes cost or time. If my references don't answer the question, say what is missing instead of inventing a detail.

All three prompts have the same rule in a different form. The model may not add a product, an issue or a detail you didn't give it. A spec, a set of minutes and an RFI answer are records, and a made up line in a record costs more than the hour it saved.

A render prompt that keeps your design, not the model's

Render tools change the building unless you tell them not to. Veras and ArchiVinci both start from your own model view or sketch, which is the reason to use them over a blank text prompt. Give the prompt the materials, the light and the mood, and forbid the rest:

Render this massing view as a photo of the finished building. Keep the geometry, the openings and the roofline exactly as drawn; do not add floors, balconies or windows. Materials: [facade, roof, glazing, ground surface]. Light: [time of day, season, overcast or sun]. Setting: [street trees, neighbors at the heights shown, people at a small scale]. Camera at eye level from [position]. No lens flare, no dramatic sky.

Two rules about who owns the image. The US Copyright Office concluded on 29 January 2025 that "prompts alone do not provide sufficient human control to make users of an AI system the authors of the output." Your design is your own work; a render made from a prompt alone isn't protected the same way, so keep the drawings as the record. And on Midjourney below Pro, images aren't private: Stealth Mode, which hides them, comes only on the Pro and Mega plans. A competition entry or an unannounced client scheme belongs on a tool where the image stays yours to show.

Will AI replace architects?

RIBA's members don't think so, but they expect fewer junior jobs. In the 2026 report, 77% agree AI can never replace human creativity. At the same time, 59% believe AI adoption will lead to staff reductions across the profession, and 61% agree it will make it harder for early career staff to gain the skills they need. Today's cuts are small: 9% of practices say AI has led to staff reductions, against 7% in 2024.

The reason sits in the chart at the top. The jobs AI took first (concept images, document drafts, compliance lookups) are the tasks a graduate used to learn the trade on. RIBA's report puts it plainly: AI is most used in areas that "rely less on professional judgement or creative insight."

The decision rule for a practice: let AI draft words and first images, and keep every number, every code answer and every detail a contractor will build from in a person's hands. That's also where the profession's liability sits.