Architectural Services

Professional architectural services from l'Ordre des Architectes certified architects. Expert permit preparation, quality oversight, and complete project management for renovations. ABF expertise for protected zones and guaranteed compliance throughout.

The challenges of architectural projects in Paris
ABF approval complexity
Permit confusion
Protected zone restrictions
Quality control gaps
How Mastros coordinates your project
Describe your project
Receive matched proposals
Select your team
Track execution
Complete & verify
What's Included in every Architectural Service

Professional Standards
- ✓l'Ordre des Architectes certification
- ✓Professional indemnity insurance
- ✓Technical drawing and documentation
- ✓Regulatory compliance verification
- ✓Site inspection and assessment
- ✓Official stamped reports

Typical timeline
- ✓Quality inspection - 2-3 hours on-site
- ✓Design & planning - 2-4 weeks
- ✓Structural evaluation - 1-2 weeks
- ✓Déclaration préalable - 1-2 months
- ✓Permis de construire - 2-4 months
- ✓Protected zone (ABF) - 3-5 months

Expertise areas
- ✓Protected zone navigation (ABF)
- ✓Copropriété compliance
- ✓Monument historique procedures
- ✓Building code interpretation
- ✓Structural engineering coordination
- ✓Urban planning regulations
- ✓Heritage conservation
Not Haussmann, Paris 20ème
Involved from the very beginning of the apartment search, the client presented us with this 32 m² apartment in Paris's 20th arrondissement. While attracted by the large windows and unobstructed view, he was nonetheless perplexed by the amount of work required and the existing layout: a disproportionately large kitchen, bathroom, and toilet, making the main room too small and difficult to furnish, single-glazed windows, and outdated finishes.
Our initial role was to guide our client through the purchase process by analyzing the energy performance certificate, the quality of the building's management, and the apartment's inherent qualities.
Since the apartment was structurally divided in two by a load-bearing wall, our concept was to consolidate all the wet rooms into the first zone, thus freeing up the second zone, which would benefit from the light and view, to create a 23 m² living space.
The two zones are separated by an original glass door and distinguished by their flooring: tiles for the waterproof zone and natural linoleum for the living area. This keeps the "technical" spaces grouped together and isolated from the more formal living and sleeping areas.
A simple layout, custom-made furniture, and meticulous attention to detail to achieve the right dimensions for each function allowed us to create a comfortable and spacious apartment. A small apartment that feels like a large one.
The exposed concrete walls, revealed by stripping away the layers of plaster, led us to choose raw and understated materials for an original and calming decor. The use of raw MDF for all the woodwork adds a touch of softness, contrasting with the concrete and aluminum countertops. The light gray tiles and natural linoleum bring light and highlight the colorful objects in the home.
Despite a tight budget, we replaced the windows with double-glazed wooden frames whose white paint is guaranteed for 20 years in order to best respect the original building and promote the use of bio-sourced materials.


Our services
Architect Quality Inspection
Building permits & ABF approval
Architectural design & planning
Project management
What your investment includes
PRICE RANGE — Complete Project Management
- Design and planning phases: 56 to 63%
- Construction oversight: 37 to 44%
- Site supervision (within oversight): 24 to 28%
- Permit coordination: included
Why Mastros
Transparent cost breakdown
Milestone payment protection
Full visibility on scope and pricing
You approve every change
l'Ordre des Architectes certified
Clear deliverables at each phase

Get your free quotes
Describe your project and receive proposals from verified architects. No commitment, 0% commission.