Water is the story nobody leads with when selling you a condo in Cabo, but it is the single most important infrastructure factor for long-term property values in Los Cabos. This is a desert city of 350,000 people at the tip of a 1,000-mile peninsula, and every drop of fresh water is either desalinated, pumped from aquifers, or trucked. Here is what that actually means for property owners.
Key Takeaways
- • Existing 2006 municipal desal plant operates at only 36% capacity — rationing remains a risk
- • New $65M OOMSAPAS plant (Acciona + La Peninsular) targets October 2026 completion
- • 30+ private desalination plants operate in major developments — mandated by the city
- • Pedregal runs its own desal with 250,000-gallon storage — first private facility to sell water back to the city
- • 2026 municipal water investment: 70M pesos across five projects including new pipeline and pump stations
Evaluating Infrastructure Before You Buy?
Water independence is a real differentiator between communities. I can tell you exactly which developments have their own systems and which rely on the municipal grid.
Contact MeThe Municipal Water System
Los Cabos' municipal water is managed by OOMSAPAS (Organismo Operador Municipal del Sistema de Agua Potable, Alcantarillado y Saneamiento). The existing desalination plant was built in 2006 with a design capacity of 20,736 cubic meters per day. As of late 2024, it was operating at only 36% of that capacity (Gringo Gazette).
That number — 36% — is the headline that matters. A plant designed for 20,000+ m³/day is delivering roughly 7,500 m³/day, in a municipality that has more than doubled in population since the plant was built. The gap between supply and demand is real, and it is why rationing has been threatened for summer 2026 (Vallarta Daily).
The New Desalination Plant
A new OOMSAPAS reverse osmosis desalination plant is under construction as a public-private partnership between Acciona (the Spanish infrastructure multinational) and La Peninsular (a regional contractor). The investment: 1.145 billion pesos, approximately $65 million USD (Acciona announcement).
The new plant adds 250 liters per second of capacity. Combined with the existing plant's output, the total will reach 650 liters per second — a transformational increase. Target completion: October 2026. The plant was reported at 41% complete as of late 2024 (Gringo Gazette).
Additionally, five municipal water projects totaling 70 million pesos (~$4M USD) are underway in 2026 — including 6+ kilometers of new pipeline, reinforcement of the La Sanluqueña pumping station, and well repairs (Gringo Gazette). A new federal-funded wastewater treatment plant is also in Conagua's planning pipeline.
Private Desalination: The Real Story
The Cabo government mandated that all major new developments build their own desalination and wastewater treatment plants. An estimated 30+ private desalination plants now operate across the municipality. This is the infrastructure story that most directly affects property values.
Pedregal: The Gold Standard
Pedregal de Cabo San Lucas operates the most significant private desalination system in the municipality. Built by Global H2O Investments (Houston), the plant includes 250,000 gallons of storage and runs completely independent of the municipal supply (Pedregal official). Pedregal is set to become the first private facility to sell potable water back to the public system — a reversal of the typical dependency.
This is a genuine competitive advantage. When the city threatens water rationing, Pedregal homeowners do not notice. When the municipal plant underperforms during peak summer demand, Pedregal runs its own system at full capacity. That reliability premium is baked into Pedregal property values, and it is one reason the community maintains its price leadership position.
Other Developments with Independent Water
Most major Corridor and Pacific-side developments — including those in the Diamante area, Quivira, and the resort corridor communities — operate their own desalination or water treatment systems as mandated by the city. The specific systems vary in capacity and design, but the principle is consistent: independent supply insulated from municipal constraints.
When evaluating a property, ask these questions:
- Does the development have its own desalination plant?
- If yes, what is the capacity vs current demand?
- Is there backup water storage (cisterns, tanks)?
- How is the cost structured — built into HOA or billed separately?
- Has the development ever experienced a water outage?
Want to Compare Infrastructure Across Communities?
Water, power, and internet reliability vary dramatically between developments. I can give you the real picture for any community you are considering.
Book a CallElectrical Infrastructure
CFE (Comisión Federal de Electricidad) is Mexico's state electric utility and the sole provider in Los Cabos. Power reliability has improved significantly over the past decade, but outages still occur — particularly during hurricane season and peak summer demand when air conditioning loads spike.
What to know as a property owner:
- Voltage: Mexico uses 127V/60Hz. Most US appliances work without adapters (identical to US standard), though some heavy-draw appliances may need voltage considerations.
- Backup power: Many luxury homes and all major developments have backup generators. If buying a standalone home, budget for a generator installation.
- Solar: Baja California Sur averages 300+ sunny days per year. Solar panel installations are increasingly common. Twin Dolphin/Maravilla has partnered with Tesla on a community-scale solar and battery system aiming to go off-grid. See our sustainable building guide.
- Cost: Mexican residential electricity is subsidized up to a certain usage threshold, after which rates climb steeply. Running air conditioning 24/7 in a large home can push you into the highest rate tier (DAC — Doméstica de Alto Consumo). For details on setting up utilities, see our post-closing checklist.
Road and Transportation Infrastructure
The Glorieta Fonatur overpass project — a 469 million peso ($27M USD) investment — is at 72% completion targeting mid-2026 delivery. This overpass handles 60,000+ vehicles daily and includes 19,500 square meters of new sidewalks, 17 crosswalks, and 24,000 square meters of restored green space. It is the single most significant road infrastructure project in the municipality.
The broader Transpeninsular Highway (Highway 1) between Cabo San Lucas and San Jose del Cabo remains the region's transportation spine. Traffic has worsened with population growth, but there are no plans for a second highway or a bypass — the geography (desert mountains on one side, ocean on the other) makes alternative routes impractical.
For the full transportation picture including SJD Airport, see our airport and transportation guide.
Internet and Connectivity
See our dedicated internet and connectivity guide for the full breakdown. The summary: fiber optic service from Telmex/Infinitum reaches most developed areas, Starlink is increasingly popular in remote communities (East Cape, Pacific Side), and most luxury developments include high-speed internet in their infrastructure package.
What Infrastructure Means for Property Values
Infrastructure independence is becoming a meaningful price differentiator in Los Cabos. Developments that control their own water, power backup, and internet infrastructure are insulated from the growing pains of a rapidly expanding municipality. This insulation has a quantifiable impact on resale values and buyer confidence.
When I walk properties with buyers, the first questions are always about the view, the finishes, and the price. But the questions that matter most for long-term value are about what is behind the walls: Where does the water come from? What happens when the power goes out? Is there a backup generator? These are the factors that separate a property you enjoy for years from one that frustrates you every time you visit.
Infrastructure Questions Before You Buy
I know which communities have robust independent systems and which are more exposed. Let me help you make an informed decision.
Get in TouchFrequently Asked Questions
Does Los Cabos have water problems?+
Los Cabos faces real water challenges. The existing 2006 municipal desalination plant operates at only 36% capacity, and water rationing has been threatened for summer 2026. However, a new $65M OOMSAPAS desalination plant (targeting October 2026 completion) will more than double municipal capacity, and over 30 private desalination plants operate in major developments.
Which Cabo developments have their own water supply?+
Pedregal de Cabo San Lucas has the most notable private desalination plant — built by Global H2O Investments with 250,000-gallon storage, fully independent of municipal supply. Most major developments including Diamante-area communities are mandated by the Cabo government to have their own desalination and wastewater treatment facilities.
How much does water cost in Los Cabos?+
Municipal water rates through OOMSAPAS are tiered and relatively affordable for residential use. However, in developments with private desalination, water costs are built into HOA fees rather than billed separately. The real cost differential is not the monthly bill — it is the reliability premium that developments with independent water systems command in property values.
Is water rationing still a risk in Cabo San Lucas?+
Yes, for properties dependent on the municipal system. The city warned that rationing could return in summer 2026 due to the existing plant operating at 36% capacity. Developments with private desalination plants — like Pedregal and many Corridor communities — are insulated from municipal shortages.
When will the new Cabo desalination plant be ready?+
The new OOMSAPAS reverse osmosis desalination plant, built by Acciona and La Peninsular as a public-private partnership at a cost of 1.145 billion pesos (~$65M USD), targets October 2026 completion. It was 41% complete as of late 2024 reporting. Combined with the existing plant, total output will reach 650 liters per second.
Aaron Cuha
Real Estate Advisor & Los Cabos Market Expert
Real estate advisor and founder of Living In Cabo. 15+ years helping families navigate complex real estate decisions. Strategic partner with Ronival — Baja's largest brokerage.
