Our Design + Build method
Five steps, from feasibility to commissioning. We hold the price and deadline commitment for the entire project: design, execution, handover, warranties. The feasibility visit involves a symbolic contribution, deductible upon signing — terms are specified during the initial call.
Internal ISO 19650 tools (BIM, shared CDE). While the Loi MOP framework (esquisse / APS / APD / PRO-DCE / ACT / DET / AOR) remains a public market reference, for private projects we operate under Architecteurs contracts adapted for Design + Build.
How a Xiléades project unfolds, from your side of the desk. These are not the technical phases (sketch, design development, permit...) — these are what you live through, week by week. The technical details are below, for those who want to dig.
01 · Pre-show · 2 to 6 weeks
The decoder, Hélène or Alexis replying in person (phone, short video call, or voice note — your choice), the first meeting. You present your project; we share our reading. By the end, you know whether we're going forward together — or not.
Vous recevez :Project synthesis, personal reply from the architect, indicative range.
02 · Signing · One day
When you sign, you receive a printed booklet in person (or by courier): team, milestones, contacts, glossary, contract inside. It's the first physical object of the project — so it starts in your mind, not in your inbox.
Vous recevez :A6 project log, personalised wood object, signed contract.
03 · Build · 3 to 18 months
You can't be on site, and that's normal. Every Friday, Alexis films and sends a vertical video: where we are, what we did this week, the thing that deserves your attention, what's next, honest status. No music. No filter. No app.
Vous recevez :Private weekly video, SMS reminder Friday 6pm, scripted mid-build visit.
04 · Handover · One day
Not an email with the technical file. A ceremony: photographer, USB with the full video archive, space staged, plants, fresh bread. You walk into your home for the first time — we want that to be the closing photo you keep.
Vous recevez :In-person handover, full video archive, photographer.
05 · Afterlife · Over 3 years
Visit at 1 year, visit at 3 years. We look at how the place aged, what works, what we'd do differently. Small gift. No commitment expected from you — it's our standard.
Vous recevez :Two scheduled courtesy visits, direct contact preserved.
Indicative duration: 2 to 3 weeks
What we deliver
What we expect from you
A written brief, your budget envelope, and the building's history.
Indicative duration: 8 to 14 weeks
What we deliver
What we expect from you
Validation at each milestone and arbitration on proposed options.
Indicative duration: 3 to 5 months (including processing)
What we deliver
What we expect from you
Availability for potential discussions with the instructor or ABF.
Indicative duration: 6 to 18 months depending on program
What we deliver
What we expect from you
Occasional presence at key milestones and validation of any amendments.
Indicative duration: Handover + 1-year GPA
What we deliver
What we expect from you
User feedback to calibrate snag list resolution.
Framework & guarantees
Construction-defects insurance included
Construction-defects and decennial insurance built into the price
Architects registered with the Order
Members of the Les Architecteurs® network
ISO 19650 method
BIM, shared CDE, clear information levels
Final completion warranty
Defects cleared within 1 year, formalised follow-up
Schedule commitment
Contractual timeline backed by penalties
Financial guarantee
Milestone payments + all-risks site cover + extended PI
Tools
Shared digital model, conflict detection before construction, reliable surveys.
Common Data Environment: a single space for all documents, tracked versions.
Structured minutes within 48h, quantified progress indicators, no guesswork.
One price, one deadline, one site insurance policy, one decennial warranty. Aligned with Architecteurs cooperative contracts.
Project decoder
4 minutes. 6 questions. A personal reply from Hélène or Alexis within 24 working hours.
Why 4 minutes instead of a contact form?
Because the person who calls you back is not a salesperson — it is the architect who will draw your project. We want to understand before we propose a meeting, not the reverse.
We answer personally within 24 working hours. Phone, short video call, or voice note — your choice.
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