
BYOB New inbox in every project
Real Estate Website Builder in Paris
Property buyers in Paris move fast — give them listings, area guides, and a direct line to you.
Runs on the stack you trust
Prompt to product
From one-line brief to finished app.
Compare the one-line brief with what BYOB ships. Real layout, data, and deploy status, editable from the same workspace.
Team Tasks
Shared task tracking
Drag the handle. Or focus it and use the arrow keys.
Get inspired
Sites like this, live today.
Real sites that do it well. Build something like this with BYOB.






Local details
What to know before you build here
- Currency
- Euro (EUR €)
- Tax
- VAT at 20%
- Payments
- Cards, Apple Pay
- Domain
- .fr
French-first expectations; refined design matters.
Fresh from the community
See what builders ship, or start from an example.
Live workspace
Code, chat, and preview in one place.
The workspace is built for repeated product work, not disposable demos. Every generated file stays inspectable, every change is visible, and every follow-up can target the exact part of the app you care about.
01 · EDITOR
Generated code, ready to edit.
Every file BYOB writes stays visible and editable. Follow-ups target the exact lines you care about instead of regenerating from scratch.
- Added lines highlighted the moment they land
<script lang='ts'>type Task = { id: string; title: string; done: boolean
}let tasks = $state<Task[]>([])function toggleTask(id: string) {task.done = !task.done // just added by BYOB}</script>02 · AI COMMAND
Plan, build, and refine in one chat.
Describe the outcome once. BYOB turns it into a build plan, implements it step by step, and keeps every change visible while you iterate.
- Build plan with live progress you can inspect
Your prompt
“Build a todo app for beginners”
Build plan
80%- Task list UI + empty state
- Add + toggle actions
- Progress summary…
03 · LIVE PREVIEW
See every change the second it lands.
The preview updates as BYOB works, with deploy status attached, so the path from edit to production stays inspectable.
- Real app state, not a static mockup
Team Tasks
Shared task tracking
- Wireframe landing page
- Task list component
- Responsive polish + QA
Prompt to app
From first prompt to a workspace you can ship.
Start conversationally, approve the shape, let Tool Mode implement, then refine and deploy from the same workspace.
- 01 Describe the product Start with the outcome, audience, and any constraints. BYOB turns the idea into a practical build plan.
- 02 Shape the UX Review the proposed flows, screens, data needs, and visual direction before code starts moving.
- 03 Generate the app Tool Mode writes SvelteKit code, connects integrations, and keeps each change visible in preview.
- 04 Test and refine Ask for edits, roll back when needed, run checks, and keep the project editable instead of disposable.
- 05 Deploy Ship the finished app, connect domains, and keep iterating from the same workspace.
Agent and backend
Code with your agent, ship with a real backend.
Connect Codex, Claude Code, or Antigravity to your project, then store data and ship to production without leaving the workspace.
- Approve project access from BYOB
- Installs the byob command
- Preview, deploy, git diff, DNS, credits, and code tools
npx -y byob-cli codex install Approve only the projects your agent can touch, then read context, edit files, inspect diffs, test previews, and roll back from your terminal.
- 1
- prompt to start
- 3
- live panes
- 24/7
- edge preview
Loved by builders
Rated 4.9/5 by developers and founders using BYOB to move from idea to shipped product.
Built for shipping
The parts that usually slow you down are already here.
BYOB handles product planning, implementation, preview, testing, database work, and deployment from one focused interface, with coding-agent access and production analytics when you want to keep working from your own terminal.
This part is hands-on. The cards drift until you touch them. Drag to rearrange, or press and hold one to feel it push back.
Agent integrations
Give Codex, Claude Code, or Antigravity scoped access through BYOB CLI or Agent MCP. Your agent reads context, edits code, tests previews, and deploys from your terminal.
Git history and diffs
Every change lands as a commit. Inspect history, compare diffs, and see exactly what changed since the last deploy.
Inbox in every project
Every project ships with an inbox. Collect messages, leads, and feedback from your app without wiring a third party.
Email sending built in
Send magic links, OTP codes, and transactional mail from your own sender address. Resend-backed, no SMTP setup.
Google and magic-link login
Offer Continue with Google plus passwordless email codes. Sessions and callbacks are handled.
Custom domains and SSL
Point your domain at BYOB with guided DNS checks. Certificates are automatic.
Visual editing
Click any element in the live preview and describe the change. Copy, spacing, color, behavior.
AI testing agent
Run full-site or feature checks and get implementation-level feedback you can apply in one step.
Version rollback
Step between saved states or redeploy a known commit when an experiment goes sideways.
One-click deploy
Builds publish to production hosting in one step. Deploys can auto-save the project state first.
Deployment analytics
Worker traffic, errors, CPU timing, subrequests, and custom-domain status from the workspace.
Supabase aware
Connect Supabase and BYOB reads schemas, drafts migrations, and generates types that match your app.
Team collaboration
Invite people in and keep sessions coordinated so work never overwrites work.
- Vision inputs
- Voice coding
- Project templates
- SEO-ready output
- Context tracking
- Model lock
Simple pricing
Start with credits, upgrade when usage is steady.
Pay as you go when you are exploring. Move to Pro or Max when BYOB becomes part of your regular build workflow.
Pay as you go
$1 = 100 credits
Pro
2,000+ credits/mo
Max
8,000+ credits/mo
Live estimator
What will your app cost?
Try the cost calculator. Drag the pages slider, toggle the options, and watch the agency quote vs BYOB update instantly.
Open full cost calculator →$5,750 upfront
~$1,150 / year
~$45 in credits
BYOB builds the same site from one prompt and hosts it on the edge. Planning estimates, not quotes.
See BYOB plansNeed white-label and SSO? Talk to us →
A real estate website builder for Paris should read naturally in French, present each bien with precise detail, and make it easy to arrange a visite. BYOB lets you publish a refined.fr site with listing galleries, DPE information, and card or Apple Pay contact options, so Parisian buyers and investors can shortlist and reach you quickly.
Why presentation decides in the Paris market
In Paris, the way a property is presented influences how it is valued. Buyers and tenants read the details closely, from the étage and orientation to the charges de copropriété and the energy rating. A site that looks considered, with elegant typography and accurate French, inspires more confidence than one that relies on generic templates. Photography should show the light and the proportions honestly, because a misleading image wastes everyone's time at the first visit. Refined design is not decoration here; it is part of how you demonstrate that you handle a transaction with care.
French-first copy and correct diacritics
Parisian clients expect a site that reads as though it was written in French, not translated into it. Accents, grammar, and the correct legal vocabulary all signal competence. Describe each bien with the terms buyers actually use, and keep sentences clear rather than ornate. An English version can serve international buyers, but it should sit alongside the French rather than replace it. Because language usage is regulated and closely observed in France, paying attention to spelling and punctuation is not pedantry in this market; it is a basic mark of professionalism that clients notice immediately.
Listing details buyers in Paris look for
A useful Paris listing covers more than square metres. Include the étage, the presence of a lift, the type of heating, and whether there is a cave or parking. The energy performance certificate, or DPE, is part of French property advertising and affects how buyers judge running costs. For apartments, note the exposition and any works planned by the copropriété. For houses in the inner suburbs, mention the garden orientation and transport links. Presenting these facts clearly helps serious buyers filter quickly, and it reduces the number of enquiries that were never a genuine match.
Arranging visits and handling enquiries
Paris buyers often move fast when a property suits them, so the path from listing to visite should be short. Offer a clear contact form, a phone number, and the option to request a viewing at a preferred time. Since many enquiries come from people relocating from other regions or countries, a request for a video tour is worth supporting. Confirm response times so expectations are clear. Because Parisian schedules are busy and visits are often grouped, a booking tool that shows available slots can save a great deal of back-and-forth messaging.
Pricing, VAT, and payment expectations
Property prices in Paris are quoted in euros, and the fees of the agent or the notaire are a normal part of the conversation. VAT at 20% applies to many services, so be explicit about what is included in any commission you charge. Buyers and tenants are comfortable paying deposits by card or Apple Pay, while larger sums move through bank transfers and the notarial process. Showing a clear breakdown of costs, and noting which party pays what, builds trust early. Transparency about money is especially important in a market where buyers are careful and well informed.
Standing out in a refined, crowded market
Paris has thousands of estate agents, so a generic site disappears. Choose a clear specialism, whether that is apartments in the Marais, family homes in the western suburbs, or a pied-à-terre for international buyers. Add local knowledge that a portal listing cannot: which streets are quiet, how the transport connects, or what a building's management is like. Original photography and accurate floor plans set you apart from copied listings. A site built around genuine expertise gives clients a reason to choose you, and it helps search engines and AI assistants describe what you do when buyers ask.
Sources
FAQ
Frequently Asked Questions
Yes, French-first is the expectation for local buyers and tenants. You can add an English version for international clients, but the French copy should be accurate and natural, including accents and the correct legal terms.
Energy performance information is a standard part of property advertising in France, so listings should include the DPE. It also matters to buyers because it indicates likely running costs for heating and cooling.
Smaller deposits and reservation fees are often paid by card or Apple Pay, while larger amounts typically move by bank transfer through the notarial process. State clearly what each payment covers.
Original photography, accurate floor plans, and detail that portals omit, such as exposition or works voted by the copropriété, give buyers a reason to open your site and contact you directly.
Build the first version today.
Start with one clear prompt. BYOB will help turn it into a product you can inspect, edit, test, and ship.