Luxury Villa Construction in Costa del Sol

From Concept to Reality — Turnkey & Bespoke Luxury Villa Construction

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Building a luxury villa in Costa del Sol is one of the most significant investments of your life. It deserves more than a contractor.

Most high-end construction projects in Marbella fail the client in the same way: multiple uncoordinated subcontractors, budget deviations that appear mid-build, and hidden defects that only surface months after handover.

 Realta Constructions was founded to solve exactly this. We operate on a vertically integrated model — site supervisors, structural builders, MEP installers, finish specialists — all under one technical direction, one contract and one guaranteed scope.

 

The result is not just a beautiful villa. It is a technically precise residence, built on a perfectly levelled base, with every system coordinated before a single wall goes up, and delivered with full documentation and extended warranty.

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The Realta Difference

In-House Execution from Foundation to Finish

Building your villa in-house means we never pass your project to strangers.

One team,
from groundwork to glazing

Our builders, electricians, plumbers, tile specialists and finish carpenters are all on our payroll. When a detail needs resolving, it is resolved in hours, not weeks — because there is no subcontractor to chase.

A fixed budget that stays fixed

We refuse to begin construction without a fully defined, technically measured project. Every partition, every linear metre of MEP, every material specification is documented before the contract is signed. Scope changes are proposed in writing and approved by you — never imposed.

The perfect canvas principle

Before any premium finish is applied, we establish geometric precision using laser-based layout and levelling. Marble does not forgive imperfect surfaces. Neither do we. Every millimetre matters.

Technical documentation you can rely on

At handover, you receive as-built drawings, material datasheets, MEP operating manuals and a 5-year extended warranty on finishes — 2 years beyond what Spanish law requires. Your property is an asset. We protect it accordingly.

How We Build Your Villa

The 7-Phase Realta Process

Phase 1

Initial meeting & vision

We meet to understand your needs, architectural vision and lifestyle requirements. No commitments, no pressure — just listening and understanding with complete confidentiality.

Site
visit

Brief definition

Style alignment

Budget orientation

Phase 2

Interior design & architecture

Our team develops a bespoke conceptual proposal: space distribution, materials palette, finishes and aesthetic direction. A preliminary budget and indicative schedule are issued simultaneously.

Concept design

Materials palette

Lighting criteria

Preliminary budget

Phase 3

Technical project & permits

Development of full technical drawings, construction details, MEP system coordination and specifications. Our in-house legal team manages all administrative licences and building permits.

Technical drawings

MEP coordination

Clash detection

Licence management

Phase 4

Fixed budget & construction contract

Once the project is fully defined, we issue a fixed-scope, itemised execution budget — zero hidden costs. Every trade, material and system is measured and documented before a single wall is touched

Itemised budget

Construction schedule

Turnkey contract

Scope freeze

Phase 5

Construction execution

Our own in-house team takes the site. Site supervisors, builders and specialist installers — all under one technical direction. Laser-based levelling, zero tolerance on deviation, continuous quality control

In-house team only

Laser planimetry

No subcontractors

Monthly certification

Phase 6

Finishes & systems integration

Premium materials installed exactly as conceived — no improvised adjustments. We create the 'perfect canvas': geometrically precise surfaces ready to receive marble, large-format porcelain, bespoke carpentry and advanced smart-home systems.

Premium materials

Smart home

Bespoke carpentry

MEP integration

Phase 7

Handover & extended warranty

Full project walkthrough and client sign-off. Delivery of as-built drawings, material warranties, MEP operating manuals and a 5-year extended finish guarantee — 2 years beyond the legal requirement under LOE.

As-built documentation

5-yr finish warranty

10-yr structural warranty

Post-delivery review

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What Is — and Is Not — Included in Our Luxury Villa Construction

Typically included:

  • Full earthworks and structural execution
  • Perimeter walls and building envelope
  • Complete MEP installations (electrical, plumbing, HVAC, domotics)
  • Interior partitioning and technical finishes
  • Premium flooring, cladding and carpentry
  • Swimming pool and outdoor areas (by project scope)
  • Licence and permit management
  • Technical project direction and quality oversight
  • Extended 5-year finish warranty + 10-year structural warranty

Not included as standard:

(Available on request)
  • Interior design and furniture specification
  • Landscaping and irrigation
  • Notary and municipal fees
  • Structural engineering stamp fees

We are transparent about scope because surprises on a large-scale project are not surprises — they are failures of planning. Ours or yours.

Comprehensive New Construction for
Luxury Villas

We specialise exclusively in new-build luxury villas. Our approach combines bespoke design coordination, rigorous engineering and premium execution to deliver residences tailored to your lifestyle and expectations.

Luxury villa construction Bespoke and custom villas Turnkey project delivery

Villa Cerquilla

Creating the “perfect canvas”. Execution of technical envelope and laser planimetry as the indispensable foundation for luxury interior design.
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Villa Monta

Challenging the mountain terrain of Benahavís. A complex execution of technical envelopes and structural reinforcements for a 1,200m² villa on a 45-degree slope.
See project
Our services

Territorial
Expertise

Our work is focused on high-value residential areas across the Costa del Sol. We understand the specific characteristics of each location, allowing us to anticipate challenges and ensure a controlled development throughout every stage of the project.

No matter where your project is located, we'll be there.

We also undertake projects in other locations, provided they align with our standards of quality and execution.

Contact us for more information

FAQs

Questions specific to building a luxury villa from the ground up on the Costa del Sol.

I have a plot but no architect yet. Can Realta help?

Yes. We work with a network of architects and engineering studios and can coordinate the full design and technical project development before construction begins. If you already have an architect, we integrate with their team as the construction arm, ensuring that what is designed can actually be built — precisely and on budget. Our role is to bridge the gap between design intent and technical reality.

For a high-end villa of 400–800m², the construction phase typically runs 12 to 20 months, depending on complexity, materials lead times and the scope of custom elements. Prior to construction, the design and technical project phase adds 8–12 weeks. We provide a signed construction schedule at contract stage — and our in-house model gives us significantly more control over that schedule than firms that depend on external subcontractors.

‘Turnkey’ in our contracts means we deliver a fully finished, habitable residence ready for occupation or furnishing. It covers all structural works, MEP installations, interior finishes, exterior works within the agreed scope and a complete technical handover package including as-built drawings, system manuals and extended warranties. What it does not automatically include — and we are explicit about this — is interior design and furniture, landscaping, and administrative or notary fees. These can be added by agreement.

Yes. We have direct experience building in La Zagaleta and other high-regulation zones on the Costa del Sol. These areas have specific building codes, aesthetic requirements and logistical constraints that require deep local knowledge. We master the specific permitting process for Europe’s most exclusive resort and have managed the full lifecycle of projects on mountain terrain with restricted access, complex topography and strict architectural guidelines.

Because our site supervisors, engineers and builders are all part of the same team, we resolve unexpected conditions faster and more efficiently than firms that rely on third-party consultation. Any change to scope is documented, priced and submitted for your written approval before work proceeds. We do not implement changes that affect your budget without your explicit sign-off — regardless of how minor they may seem

Smart-home systems, home automation, HVAC zoning and architectural lighting are planned and coordinated during the technical project phase — before construction begins. This is critical: retrofitting technology into a finished villa is expensive and often compromises aesthetics. Our MEP coordination process includes full clash detection between structural, electrical, plumbing and smart systems, so everything is designed to work together from the first drawing.

Every new-build project includes the statutory warranties established under Spain’s LOE building law: 1 year on finishes, 3 years on MEP systems and 10 years on structural elements. In addition, Realta voluntarily extends the finish warranty to 5 years total — two years beyond the legal requirement — for all elements executed by our own team. At handover, you receive a complete technical dossier with as-built drawings, material certificates and operating manuals for all installed systems.

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