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Concept design
The main package is not drawn on a blank page; it follows a locked concept.
Main project
Main project
Architectural and technical documentation for a building-permit application.
What we deliver
Deliverables, required inputs, and boundaries - one overview in the Scope tab below.
Full scopeWhat we need from you
- Complete package of special conditions and utility connection terms from the municipality, authorities, and utilities.
- Location permit when required, or confirmed information on the applicable administrative framework.
- Confirmed decision points from concept design (or addendum if programme changed).
- Timely approval of samples and specifications at agreed checkpoints.
Once the location frame is clear, you need technical documentation for the building permit. The main project helps you bring architecture, structure, and building services into one coordinated package. We develop the adopted design into drawings, calculations, technical descriptions, and discipline elaborates, with controlled revisions.
This is not the authority procedure. It is the documentation that shows the works clearly enough for a building permit. The risk here is discipline misalignment: what architecture draws must hold with structure and services. Every cross-discipline decision goes into a written log.
We work on projects across Croatia: Zagreb, Zadar, Dalmatia, Istria, Kvarner, the islands, and elsewhere.
What we deliver
Three views on the same scope: deliverables, your inputs, and what is out of scope.
- Architectural main project with plans, sections, and elevations at prescribed level.
- Coordination and integration of discipline packages (structure, MEP, fire, energy as required).
- Technical description of the building and materials at main-project level.
- Drawing and elaborates list with versions and dates.
- Written cross-discipline decision log and open points for the building permit.
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Duration and rhythm
Three months from receipt of the complete package of special conditions and utility connection terms.
Scope
- We do not run the building-permit procedure; that is a separate service.
- We do not perform construction or site supervision (separate contract).
- We do not guarantee authority acceptance without supplements. If a supplement is requested, we act within the contracted service and each designer’s responsibility.
When we finish this service for you, what is your next step toward a completed project?Building permit (Submission)
On delivery of the main project we can prepare and submit the building-permit application if that service is contracted. Where agreed, we also prepare execution design in parallel for items independent of the permit.
Frequently asked questions
- Yes. The main project is a standalone deliverable. We recommend execution design when a contractor enters, because without it improvisation on site grows.
- No. The main project is documentation. The building permit is the procedure with the authority based on that documentation.
- Architecture always; structure and MEP almost always; fire, energy, and others depending on building type and regulation.
- Chartered authors by discipline; the architectural part is signed by a chartered architect.
- Yes. An incomplete package is returned for completion and lengthens the procedure.
- A written addendum and an updated filing; the change is handled as a formal letter.
- Layered liability by role; the coordinator role ensures an integrated package.
- For most cases yes, depending on building type and use.
- Contract clauses, distribution control, and GDPR where personal data is involved.
Rules and procedures in Croatia
- The main project is a mandatory part of the building-permit application under the applicable Construction Act.
- Content and depth are set by implementing regulations; the scope depends on building type, use, and complexity.
- The package typically includes the architectural main project plus structure, MEP, and, where required, fire and energy-performance elaborates.
- Before filing, we align the documentation with the final location permit and the spatial plan that applies to the parcel.
- Statements and authorisations by elaborate authors (chartered architect and engineers) carry liability for the part each signs.
- The filing goes to the competent building-administration department; digital channels (ISPU) apply where the rules require them.
- Changes during the procedure or construction may require an addendum to the main project; larger changes can require a new application.
- Tenet does not guarantee timeline or outcome; our part is a complete, coordinated package and a clear cross-discipline decision log.
The main project is not itself a permit act. Suitability for the permit is assessed by the competent authority during the procedure. Supplements are a normal part of working with the authority, not proof that the package was unprepared.
Request an initial review. Send a short note.
Where the main project typically stalls.
Discipline misalignment
Architecture, structure, and building services often run in parallel, each on its own schedule. When the package is assembled late, clashes surface only before filing or during a supplement cycle.
Coordinated package before filing
We align drawings and descriptions from every discipline into one review set. Open points go into a cross-discipline decision log until they are closed.
Changes after the concept is accepted
The client asks for a different layout, material, or equipment once the main project is underway. Without a record, changes repeat and consume time and budget.
Written addendum for every decision
We measure each change against its impact on drawings, elaborates, and timeline. We confirm it with an addendum and an updated decision record before work continues.
Specification with no alternative
A material or item is listed from a single manufacturer while the contractor contract is already signed. If the item fails, the site stops or improvises at the client's cost.
Alternatives in the specification
We add substitute items to the specification where it makes sense. Savings and approved substitutions are recorded in writing, not verbally on site.
Disciplines brought in too late
Structure or services join only after architecture already has mature drawings. Late alignment forces rework and lengthens the main project.
Work plan in the first week
We agree discipline sequence and checkpoints at the start of the service. Each office knows when it delivers input and when it receives feedback.
What must be closed before the main project.
- Final location permit or a documented exception.
- Locked decision note from the concept design.
- Named offices for disciplines (or readiness to contract via us).
- Survey data refreshed if older than 12 months.
- Readiness to approve samples and specifications on time.
A missing document does not block the first conversation. Tell us what you have, what is missing, and what you want to reconstruct.
Where the main project sits among the stages
The main project is the documentation layer between concept and permit. With it, the building permit can start and later site decisions can be defended.
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Special conditions and utility terms
The complete set of authority acts starts the main-project clock.
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Location permit
Only when required; the main-project clock still starts from special conditions.
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Main project
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Contractor pricing
Often used as the basis for tighter contractor pricing before execution.
Documentation is signed by authorised authors. The authority reviews the package during the procedure.
Standards we work to
The main project is documentation at the level required for the building permit. Coordination between architecture, structure, and MEP directly drives the number of supplements during the procedure.
Technical design as a coordinated release toward the permit.
Discipline coordination and clarity for the building permit.
Issue for permit: controlled release with traceability.
Clear designer, client, contractor responsibility split.
Send a quick enquiry · Main project
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