Turnkey house in the Algarve: how long does it take to build — real phase-by-phase schedule

Direct answer: a turnkey house in the Algarve takes between 6 and 12 months from the promissory contract (CPCV) to key handover, depending essentially on the municipality where the plot is located. Municipal permitting is the most variable phase (3 to 8 months). The remaining phases — design, modular factory build, foundations, assembly, finishes and occupancy licence — add up to 3-4 months of effective work, much of it in parallel.

This article lays out the honest schedule of a modular Passive House turnkey project in the Algarve, phase by phase, with the real timelines we deliver and the technical reasons behind each duration. It serves both for those planning to buy a plot and wanting to know when they can move in, and for those who already own land and need to align timelines with a mortgage, relocation or a short-term rental (AL) launch.

Overview: the 7 phases of a turnkey project

Between signing the CPCV (promissory contract of sale and purchase) and handing over the keys with the occupancy licence, a turnkey project goes through seven phases. Some are sequential; others run in parallel — and it is precisely this parallelism that allows the modular model to cut the total time by 40-50% compared with traditional construction.

Important note: the timelines above are those we deliver on completed projects; they are not theoretical values. The 6 to 12 month total range comes almost exclusively from the variation between councils at the permitting stage. We break down each phase below.

Phase 1 — CPCV and technical preparation (2-4 weeks)

The starting point is the CPCV (promissory contract) for the plot or, if you already own land, the turnkey contract works agreement. In the first 2-4 weeks, in parallel:

• Site survey — technical visit, topographical survey, siting study, verification of easements and legal constraints in the municipal PDM and PU.
• PIP request (optional) — Prior Information Request submitted to the council, useful on plots with planning uncertainty. The PIP is binding and grants 12 months of legal protection to the approved solution.
• Final typology and budget definition — closing dimensions, finishes and options; binding technical proposal and schedule issued.

This phase is short but critical. Any later surprise about viability (REN ecological reserve, RAN agricultural reserve, aerial easement, archaeological protection zone) can cost months if not caught here. For detailed legal background, see modular house permitting.

Phase 2 — Architectural design and MEP (4-8 weeks)

The full package required by the council includes architecture and the engineering services listed in Article 10 of the RJUE (DL 555/99): structural stability, thermal (SCE), acoustic, ITED (telecoms), gas, water and sewage, fire safety (SCIE) and energy performance. For a modular Passive House:

• Architecture — 3-4 weeks. Includes 2 client revisions, siting plan, floor plans, sections, elevations and 3D volumetry.
• MEP — 2-4 weeks in parallel. Mechanical ventilation (MVHR-RC) and thermal engineering are coordinated with the architecture from the first sketch.
• Submission to the council — all drawings, specifications, descriptive memos and terms of responsibility are submitted simultaneously via the council's SIGPD/ePapel platform.

In traditional construction, the MEP packages often come after permitting, forcing addenda. In a modular house, everything is coordinated from the start because the panels leave the factory with electrical, ITED and water services already embedded.

Phase 3 — Municipal permitting: the phase that varies most

This is where the differences between Algarve councils become material. The RJUE sets statutory deadlines, but municipal practice depends on team sizes and procedures that vary widely. The table below summarises average timelines by council for modular villa projects with complete MEP and a PDM free of special constraints.

Permitting is made up of three sub-phases: technical review (compliance with the PDM, RGEU and specific regulations), mandatory external consultations (where applicable — ICNF, APA, DRCALG, Infraestruturas de Portugal) and final decision. Tacit approval under Article 111 of the RJUE exists but is rare — most processes require active engagement until the building permit is issued.

During permitting, Ecoimport Wood advances in parallel with the logistical preparation of the site: critical materials procurement, crew scheduling, site access study, foundation subcontractor arrangements. None of this invisible work speeds up the council, but it ensures that on the day the permit is issued, site works start the following week.

Phase 4 — On-site foundations (3 weeks)

With the building permit issued, on-site works begin. The foundations of a modular Passive House include:

• Earthworks and setting out to design levels (3-5 days).
• Compacted crushed aggregate layer for drainage (1-2 days).
• XPS insulation under the slab (eliminates the lower thermal bridge) — 1 day.
• A500 NR steel reinforcement, sized according to the structural design — 3-5 days.
• Slab pour in C25/30 or C30/37 reinforced concrete, minimum 7-day cure before loading panels — total 10-14 days.

Average duration is 3 weeks, which can extend to 4 on steeply sloping plots or those requiring retaining walls. During these 3 weeks, the factory is producing the panels in parallel — which makes this model radically different from traditional construction.

Phase 5 — Modular factory build (2 weeks, in parallel)

The Passive House frame-panels are produced on a WEINMANN line with CNC cutting: each piece is cut to the millimetre according to project specifications. In the first week, the structural frame is built up with insulation (mineral wool or blown cellulose 250-300 mm), high-performance openings (U ≤ 1.0), membranes and cladding. In the second week, the engineering services are embedded (electrical, water, ITED) and the exterior finishes are applied (reinforced render, ventilated cavity).

While this is happening, the on-site foundations are curing. When the panels leave the factory packaged and numbered, the foundations are ready to receive the house.

Phase 6 — On-site assembly and finishes (6-10 weeks)

This is the most visible phase for anyone passing the site — the house appears in days.

• Unloading and crane lifting — 2 to 3 working days. The crane sets the panels onto the slab following their numbered sequence.
• Weather-tight house (envelope) — 7 to 10 working days from unloading. External and internal walls, roof and openings are all in place.
• Final installations and interior finishes — 4 to 8 weeks. Final water, electrical and sewage connections to the public network; kitchen; bathrooms; floor finishes; painting; MVHR-RC; thermal solar panels; blower door pressurisation test.

At the end of this phase, the house is habitable. All that remains is the administrative process to make it legally habitable and registrable with the Land Registry.

Phase 7 — Inspection and occupancy licence (4-12 weeks)

Once the works are complete, the as-built drawings are submitted to the council (the real drawings of the house as it was executed), accompanied by terms of responsibility from the construction manager and the inspection manager. The council then schedules a technical inspection on site — this inspection verifies compliance with the licensed project.

After a favourable inspection, DL 555/99 sets the issuance of the occupancy licence within 10 working days. In practice, the biggest variable is scheduling the inspection: small councils schedule in 2-3 weeks, congested councils take up to 10-12 weeks. Final connections to the public utilities (water, electricity and sewage contracts with the operators) happen between inspection and licence issuance.

Typical 8-month schedule (real example)

For a 3-bedroom 180 m² villa on a plot in Silves with a PDM free of special constraints, the actual schedule delivered was:

Eight months from CPCV to effective handover. In slower councils (Loulé, Albufeira, Vilamoura), the same project can take 10-12 months — the difference lies almost exclusively in months 3 to 6. For a comparison with traditional brick construction, see modular house vs. renovation.

How to speed up the schedule (without compromising quality)

Three real levers, in order of impact:

• Plot in a fast council (Faro, Silves, Tavira) — can save 2 to 4 months of permitting compared with slower councils.
• Design coordinated from day one — architecture and MEP in parallel, with no permit resubmission. Saves 4-6 weeks.
• Modular model with parallel factory build — factory manufacturing and on-site foundations happen simultaneously. Saves 2-3 months versus traditional sequential execution.

What doesn't speed things up: pressuring the council (counterproductive), hiring external inspection (doesn't increase review speed), or trying to start works without a permit (serious legal penalty, works can be demolished).

Timeline = contract: what to demand in writing

A good builder commits to binding deadlines, not indicative ones. The contract should contain an effective start date (counted from the issuance of the building permit, not from the CPCV, to avoid penalising the builder for council delays beyond their control), a maximum execution timeline, a payment schedule tied to verifiable milestones, and a penalty clause for unjustified delay. We detail all the essential clauses in turnkey construction contract: 12 essential clauses and the criteria for choosing the right builder in how to choose a turnkey builder in the Algarve.

The timelines shown are the averages delivered by Ecoimport Wood on completed projects in the Algarve. Each project is confirmed in the contract with a binding date. Variations in municipal timelines are outside the builder's control and are safeguarded by a specific contractual clause.

→ Request your personalised schedule in 48h or see the step-by-step process with real site photos from Algoz.