The highest-leverage construction decision happens before the first plan: decide whether the parcel is legally, environmentally and physically suitable for the intended house.
Gate 1: reconcile the land record
Collect the current matrícula, municipal cadastro and IPTU record, seller authority, survey and evidence of legal access. Names, areas, boundaries and encumbrances should agree or be resolved before design fees depend on them.
Florianópolis’s GeoPortal and planning consultation page is the official entry point for mapped urban information. Use it to identify questions, not to close them. A screen layer can be out of scale, subject to update or require interpretation against the legal record and site survey.
The municipality identifies its current Master Plan as LCM 482/2014, amended by LCM 739/2023. Current microzoning, overlays, setbacks, height, occupancy, permeability, access and special-area rules must be tested for the exact cadastral unit.
Gate 2: test site and environmental constraints
An island parcel can involve slope, drainage, flood mapping, coastal or water setbacks, native vegetation, protected areas, archaeology, heritage, sanitation or road-access questions. Commission the appropriate topographic, geotechnical and environmental work before fixing the building footprint.
The municipal single-family approval service requires automated construction and environmental consultations and lists circumstances that route a project into regular review, including environmental, heritage, risk and other constraints. It also requires technical responsibility for the planimetric-altimetric survey and for design and execution.
Do not assume “single-family” means environmentally exempt. FLORAM’s simplified Environmental Authorisation (AuA) service is one possible instrument, and the applicable instrument depends on the activity and classification. FLORAM’s separate tree-removal authorisation concerns isolated trees; native-vegetation fragments and protected areas can require different analysis and authorities.
No clearing, excavation or access work should begin on an assumption that approval will follow later.
Gate 3: appoint and document the technical team
Define who is responsible for architecture, structure, foundations, drainage, electrical, water and wastewater, environmental work, survey, fire requirements where applicable, execution and site supervision.
CAU/BR explains that an RRT records a properly qualified architect or urbanist responsible for architecture and urbanism services. Confea explains that an engineering ART identifies legal technical responsibility and should be registered before the relevant activity. RRT and ART are not competing decorations; the team must allocate them to the actual professional scope.
Ask for:
- professional registration and current standing;
- a written scope and deliverables for every discipline;
- the RRT/ART identifiers at the required stage;
- responsibility for coordination, site changes and as-built records;
- professional liability and contract terms appropriate to the engagement.
Gate 4: follow the approval route
The municipality’s current construction-permit service requires an approved architectural-project number, compatible property/IPTU documents and technical responsibility for execution. It distinguishes regular licensing from permits produced through Aprova Digital and lists additional approvals for particular cases.
A practical sequence is:
- title, cadastro, access and survey reconciliation;
- construction and environmental consultations;
- concept tested against urban, environmental and site constraints;
- coordinated architectural and engineering design;
- environmental, sanitation, fire, heritage, road or other opinions where applicable;
- architectural approval and Alvará de Construção through the applicable route;
- registered execution responsibility before site work;
- inspections, quality records and approved change control during construction;
- completion, as-built, sanitation and occupancy evidence required for the project;
- cadastral and registry updates confirmed with qualified advisers.
The actual order can overlap and the municipality can request additional evidence. The appointed professionals should confirm the live route before submission.
Budget by scope and uncertainty
Do not publish or rely on one universal “cost per square metre.” First define whether the estimate includes:
- design, surveys, investigations and approvals;
- site preparation, access, retaining, drainage and foundations;
- structure, envelope, glazing and roof;
- mechanical, electrical, water and wastewater systems;
- finishes, joinery, kitchen, lighting and appliances;
- landscaping, pool, external works and utility connections;
- taxes, insurance, supervision, logistics and security;
- escalation, exchange-rate exposure and a risk contingency.
Obtain comparable bills of quantities and identify exclusions. Set a cost range at concept stage, narrow it as evidence improves and keep an explicit contingency controlled by written change approval. Coastal exposure, restricted access and uncertain ground can affect both specification and logistics.
Construction controls
Use a signed contract with scope, documents, milestones, payment evidence, retention or warranty mechanisms where appropriate, insurance, delay/change procedures and handover requirements. Pay against verified progress rather than an image or verbal percentage.
Record concealed works, test results, approved substitutions and as-built changes. A finish photograph cannot prove drainage, waterproofing, structure or compliant installations.
Evidence limitations and professional boundary
Municipal services and plan references describe a framework, not the right to build a particular design. Environmental competence can sit at municipal, state or federal level depending on the site and impact. Professional registrations do not replace independent scope, contract and quality review.
This is general project information, not legal, engineering, architectural or environmental advice. Commission parcel-specific advice and written decisions from the competent authorities before acquisition, design lock or site work.