Design and Build in Costa Rica Without Losing Control as the Owner
Owners looking for design-build in Costa Rica often want a simpler process, less coordination and one person they can turn to for advice.
I help you organize that route without acting as the company that physically builds your project. I can develop the architectural design, help you compare construction companies, advise you before appointment and represent you during construction, with each service agreed under its own scope.
You have a coordinated route, separate scopes and technical advice from your side in dealing with the builder.
Why Do Property Owners Look for a Design-Build Approach??
Design-build brings design and construction together in one contract. Turnkey describes the agreed handover condition; check what each proposal actually includes.
For a non-technical owner, coordinating architects, engineers, budgets, permits, contractors, changes and payments can quickly become difficult to manage alone.
| A simpler process is reasonable. The issue is losing a clear view of it. |
When one company designs, prices and builds, much of the owner's information comes from the same organization. That arrangement can work well with a clear scope, transparent pricing and documented changes. A separate technical review helps the owner understand important project decisions rather than accept them without a clear view of what they involve.

The most common risks are:
- Incomplete initial budgets or budgets that are difficult to compare.
- Unclear scopes before signing.
- Changes that appear during construction without enough traceability.
- Payment requests without a technical review of progress. Optimistic or unrealistic schedules.
- Optimistic or unrealistic schedules.
- Doubts about what is included and what is excluded.
- Lack of someone who translates technical information into the owner’s language.
What usually concerns the owner in a project
Building a residence, villa, commercial space, major renovation, or investment project should not feel like signing a blank check. Most owners do not want to become architects, engineers, or construction managers. They want to understand what they are accepting, how much the cost may vary, what decisions are still pending, what risks exist, and who is protecting their interests.
The most frequent concerns are:
- Not knowing whether the budget is truly complete.
- Not understanding what the contractor’s proposal includes.
- Feeling afraid that the project may get out of control.
- Not knowing how to compare several proposals.
- Living outside Costa Rica or far from the project.
- Not having time to coordinate every detail.
- Not knowing whether turnkey construction, separate contracts, or designing first is the right path.
- Wanting a single point of support without losing independent control.
My work is to sit on your side as the owner: organize the information, review risks, help you make better decisions, and support you so the project moves forward with more clarity.
The convenience of design and construction does not remove the need for independent clarity
Design and construction can be convenient. Turnkey construction can also be a valid alternative. This is not about attacking those models. The point is different: the more integrated the process seems, the more important it becomes for the owner to have clarity about scope, budget, changes, payments, schedule, responsibilities, and documentation.
A project can look organized however, important issues still present significant gaps :

You live outside the country during construction.

You do not have technical training in design or construction.

You cannot frequently review progress, payments, and changes.

Dependes al 100% de lo que informa tu contratista.

You are comparing proposals that do not have the same scope.

You do not know whether the design responds to the real budget.

You do not know whether the construction company is including everything necessary.

You are not clear on who documents decisions and agreements.
I do not aim to complicate your relationship with architects, engineers or contractors. I help organize a clearer route through design, appointments and construction, with decisions and responsibilities visible to you.
How I help you during a design and construction project
I bring technical rigor and organization to help protect your investment. I combine design judgment, technical coordination, project management, and risk control to help you move forward with greater clarity from the owner’s side.

Proposal and Contract Review
I review design and construction proposals, budgets, scope, exclusions, assumptions and conditions before you sign. I identify missing information and points that deserve written clarification. This is a technical and strategic review of the proposed work; a lawyer remains responsible for legal advice and contract interpretation when required.

Change Control
I maintain clear traceability over any modification that may affect the budget, schedule, scope, or owner’s decisions. The goal is for changes not to be approved under pressure, confusion, or habit, but with enough information about their cause, impact, and consequence.

Progress Validation
I help you review progress, reports, and payment requests before approving them, so you can understand whether what is being charged corresponds to the reported progress, the contracted scope, and the agreed conditions. I do not make financial decisions for the owner. I provide technical judgment so you can approve, question, or request clarification with better information.

Preconstruction Coordination
I organize the information, review budgets and help establish a practical plan before building. The aim is to clarify decisions and address missing information, not to package every responsibility into a construction contract with me. You have one point of technical advice on your side: architectural design where commissioned, better-informed contractor selection and project follow-up during construction under clearly separated scopes.
Services You Can Commission

Initial Project Risk Assessment
I review the real stage of the project, the information available, the main risks, and the decisions that should be clarified before moving forward.

Custom Architectural Design
If the project needs to start from design, I can develop an architectural proposal with judgment around cost, climate, use, constructability, and maintenance.

Design Review
If you already have an architectural design, I can review it to detect risks before you keep investing, request pricing, or build.

Budget and Scope Review
I review budgets, quotes, exclusions, assumptions, and payment conditions to help you understand what you are accepting before signing or choosing a construction company.

Clear Preconstruction Roadmap
I organize scope, priorities, base budget, preliminary schedule, hiring strategy, and pending decisions before moving into full design, permits, pricing, or construction.

Construction Company Selection and Comparison
I help compare proposals and clarify their differences. Contractor selection and a formal tender need a separate agreed scope before you commission that support.

Owner’s Representation During Execution
I support you during the contracted stage to review progress, payments, changes, schedule, agreements, reports, and decisions from your side as the owner.
What RDJ Project does NOT do
Clarity requires transparency about scope. It also requires defining limits.
- I am not a construction company.
- I do not sell turnkey construction as the executing company.
- I do not promise zero cost overruns, zero delays, or zero conflicts.
- I do not replace the contractor, engineer, attorney, technical director, or required specialists.
- I do not physically execute the construction work.
- I do not directly manage the client’s money.
- I do not approve payments automatically.
- I do not make legal or contractual decisions for the owner.
- I do not mix design, hiring, and representation without clear scopes.
- I do not replace the technical or contractual responsibility of third parties.
My aim is to help you design, appoint a contractor and build with clearer information,better records and technical advice from your side as the owner.
When does this approach make sense?
This approach makes sense if you want the convenience of an integrated path, but you do not want to lose control as the owner.
It can be especially useful if:
- You are evaluating design and construction or turnkey construction.
- You want to design the project and then hire the right construction company.
- You have an idea or lot, but you do not know which contracting model is best.
- You want a design aligned with budget, climate, use, and constructability.
- You already have a proposal from a construction company and want to review it before signing.
- You are comparing several offers and do not know which one makes sense.
- You live outside Costa Rica or cannot be on top of the project.
- You do not want to coordinate everything alone.
- You want technical representation during execution.
- You want to avoid moving forward with incomplete information.
- You want a single point of judgment, but not a single interested version of the project.
Experience in complex projects and multidisciplinary coordination
I am Ricardo Durán Jiménez, architect and PMP.
I have participated in residential, corporate, industrial, commercial, and hospitality projects in Costa Rica, combining design judgment, technical coordination, and project management.
My experience includes more than 100,000 m² in complex projects and support in design, planning, coordination, and execution processes for private owners and investors.
That experience allows me to read the project from several angles: design, cost, schedule, constructability, hiring, coordination, changes, documentation, and owner control.
Frequently Asked Questions About Design and Construction in Costa Rica
Is RDJ Project a construction company?
No. RDJ Project does not operate as a construction company or as an executing design-build firm. My role is to help you from the owner’s side: I can design when that is the right next step, help you select a construction company, and technically represent you during execution.
The difference is that I do not depend on the construction margin to advise you. My work is to give you clarity, control, and documentation from your side as the owner.
Is this the same as turnkey construction?
Not exactly.
La construcción llave en mano suele ofrecer una entrega lista para el uso acordado. No implica por sí sola diseño incluido ni precio fijo sin ajustes: revisa alcance, exclusiones, pagos, cambios y responsabilidades.
My approach seeks to give you a more organized experience: design with judgment, informed selection of a construction company, and independent representation during execution.
Can you help me even if I already have an architect or construction company?
Yes. If you already have an architect, construction company, budget, or proposal, I can help you review risks, clarify scope, organize decisions, compare information, and support you from the owner’s side. I am not trying to replace the current team. I help you have an independent reading so you can make better decisions.
Does this replace the architect or contractor?
No. The architect designs according to their scope. The contractor executes according to their contract. Engineers and specialists assume their technical responsibilities.
Mi rol es coordinar, revisar y documentar decisiones del lado del dueño. El diseño conmigo se cotiza por separado. Si también diseño, no presento la revisión de mi propio trabajo como una segunda opinión independiente de arquitectura.
Can I hire you to design and then help me find a construction company?
Yes. That is one of the scenarios where this approach makes the most sense. First, the design is developed or organized with judgment around cost, climate, use, constructability, and maintenance. Then I can help you better prepare the information, compare construction companies, and review proposals before hiring. After that, if the project requires it, I can represent you during execution to follow up on payments, changes, progress, reports, and decisions.
Can you review proposals before I sign?
Yes. In fact, that is one of the best moments to get involved.
Before signing, it is still possible to clarify scope, exclusions, assumptions, payments, schedule, changes, and responsibilities.
When the review happens after signing or after construction has already started, it can still help, but some decisions may be more difficult or costly to correct.
Do you work with clients outside Costa Rica?
Yes. This approach is especially useful for property owners and investors who live outside Costa Rica or far from the project.
If you cannot be present frequently, you need clear information, reports, documented decisions, and someone who can review the project from your side.
What happens if I am already building?
I can also help you.
Si tu obra ya empezó y hay dudas sobre pagos, cambios, atrasos o avances, puede convenir un Diagnóstico de Riesgo o una Recuperación de Control del Proyecto, según el estado real.
First, I review the real status of the project. Then we define whether it makes sense to stabilize, correct, renegotiate, pause decisions, or move into monthly owner’s representation.
Does this approach prevent all cost overruns or delays?
No. No serious professional should promise zero cost overruns or zero delays. In construction, conditions, changes, or risks can always appear.
What I do is help you gain more visibility, ask better questions, document decisions, get independent review, and identify early alerts before approving changes, payments, or major commitments.
Before moving forward, review where the real project risk is
Designing, hiring, and building in Costa Rica should not feel like making decisions blindly. If you are looking for design and construction, turnkey construction, or a simpler way to execute your project, I help you organize the path from your side as the owner: design with judgment, informed construction company selection, and technical representation during execution.
Before signing, paying, or building with doubts, let’s review where the real risk is and what the right next step should be.
