Hybrid Rental Strategy: 100% Occupancy by Alternating Short-Term and Long-Term Rentals

A hybrid rental strategy alternates several rental types (short-term rental, mobility lease (bail mobilité, a 1-to-10-month furnished lease), mid-term rental, long-term rental) on the same property depending on the season, the area and the owner’s needs. Done well, it eliminates vacancy periods, secures rental income across the whole year and noticeably increases net margin compared with a single rental type. For a concierge company, it’s the lever that turns a one-off mandate into a long-term relationship with the owner. This hybrid strategy builds on the basics of long-term rental management.

Most landlords ask the question the same way. Short-term or long-term. As if you had to pick a side and stick with it. Short-term for those who want to maximize yield and flexibility. Long-term for those who put stability and simplicity first.

Except this dilemma is a false one. On the same property, in the same year, you can run up to four different rental types and aim for zero months of rental vacancy, a result neither pure short-term rental (STR) nor pure long-term rental (LTR) can achieve. That’s what we call a hybrid rental strategy, and it’s becoming the standard for concierge companies that want to scale in 2026.

Why choosing between STR and LTR is a false dilemma

The classic landlord reflex is to think in terms of exclusivity. Either they run seasonal rentals all year, or they put the property on a standard lease for 3 or 6 years. That logic comes from a time when the legal and operational tools to combine the two didn’t really exist. Today they do, but the habit is still deeply rooted.

What pure STR leaves on the table

In a typical tourist area, a well-run short-term rental usually tops out around 60 to 75% annual occupancy. In the remaining 25 to 40%, you mostly have two kinds of periods. Isolated empty days between two bookings, and slow weeks or months (winter in a beach town, summer in a college town). These periods represent a significant share of the property’s theoretical income over the year.

What pure LTR leaves on the table

A standard lease gives you stable income, but also a capped rental price. In Paris or any high-demand area, rent is regulated. In a tourist area, the monthly rent for a one-bedroom is typically 4 to 6 times lower than the equivalent monthly short-term income in peak season. Over a year, pure LTR leaves a large share of the potential income untapped.

Client case: Pierre, who owns a one-bedroom in Biarritz, made €18,200 a year from pure STR between 2022 and 2024. He was convinced he had to switch to LTR to stabilize his income after a disappointing 2023 season. His concierge company suggested hybrid instead. 2025 result: €27,800, split between 4 months of peak-season STR at €9,200, 6 months of student mobility lease at €1,050 a month, and 2 months of mid-term rental for business trips at €1,400 a month.

The 4 rental types to use in a hybrid strategy

An effective hybrid strategy combines at least 2, ideally 3 rental types on the same property. Here are the 4 main types and what each brings to the mix.

Short-term rental (STR)

The classic seasonal rental. Typical stay: 1 to 30 nights. Platforms: Airbnb, Booking, Vrbo. Governed by municipal bylaws and the French Tourism Code. Income per night is the highest of all types, but turnover is intense and seasonality is strong. It’s the pillar of the high season.

The mobility lease

A specific furnished lease created by the ELAN Law (the 2018 French housing law). The bail mobilité (mobility lease) runs 1 to 10 months, with no renewal for the same tenant. Target: students, job training, temporary assignments, job transfers. No security deposit allowed. It’s the ideal complement to STR for filling slow periods without committing for several years.

Mid-term rental

A standard furnished lease of 1 month to 1 year, often used for business travel, expats on assignment, and gaps between two leases. Specialized platforms like Wunderflats, Spotahome, Morningcroissant. Income between STR and LTR, and a length in between too.

Long-term rental (LTR)

A furnished lease of one year with automatic renewal, or an unfurnished lease of 3 years, renewable, for an individual landlord. Stable rent, recoverable charges, rental guarantees. Target: the tenant’s primary residence. The most protective type for the tenant and the most tightly regulated by law. It stabilizes income over time but caps the yield.

How to combine them

The most common pattern for a beach area: peak-season STR (June to September), student mobility lease or business mid-term rental (October to May). For a university city: student mobility lease (September to June), tourist or event-driven STR (July to August). For a business area: business mid-term rental during the week, STR on weekends and school holidays. We covered a concrete case on combining a student mobility lease with tourist stays.

Building a hybrid calendar for the year

A hybrid calendar isn’t a random succession of rental types. It’s a mechanism designed for the whole year, starting from the property’s profile and local demand.

Step 1: map local demand

Identify the demand peaks over 12 months. In a tourist area, that’s school vacations and long weekends. In a university city, it’s the start of the school year and exam periods. In a business city, it’s trade show and convention season. The map of peaks gives you your STR calendar.

Step 2: identify the slow periods

Anything that isn’t a peak is a potential slow period. For each slow period longer than 4 weeks, you pick a gap-filling rental type (mobility lease, mid-term rental, or even LTR if you have a 6 to 10 month gap). The goal is to turn every slow month into a month of guaranteed income.

Step 3: place the leases in the windows

The mobility lease has a strategic advantage. It’s limited to 10 months maximum and isn’t renewable, so you automatically get the property back at the end of the period. That means you can use it to fill exactly the window you choose without risking being stuck for several years. Mid-term rental works on the same principle with even more flexibility.

Client case: Lucie, who runs a concierge company in La Rochelle, built a standard calendar for her hybrid properties. From June to September, peak-season STR (4 months, target occupancy 85%, target income €9,000 to €11,000). From October to May, student mobility lease (8 months, rent €950 a month). Annual target total: €7,600 from the mobility lease + €10,000 from STR = €17,600. Across her 5 hybrid properties in 2025, she beat the target by 6% on average.

The most common trap at this stage: trying to maximize every window individually. A hybrid calendar is designed as a whole. It’s better to accept 80% of each period’s potential and execute cleanly than to aim for 100% everywhere and end up with chaotic transitions between rental types.

Which properties hybrid really makes sense for

Not all properties are equal when it comes to hybrid. Here are the types that benefit most, and those where a single rental type is still the better choice.

Properties with strong hybrid potential

• Furnished studios and one-bedrooms in tourist areas with marked seasonality (beach resorts, coastal cities, ski resorts)
• Studios and one-bedrooms in big university cities (Lyon, Bordeaux, Montpellier, Toulouse, Lille)
• One- and two-bedrooms in downtown business districts with steady professional demand (Paris, La Défense, Lyon Part-Dieu, Marseille Joliette)
• Properties in areas with a marked event calendar (festivals, recurring trade shows)

Properties where hybrid makes less sense

• Large family houses in rural areas where STR demand is limited to July and August
• Properties in very slack markets where LTR rent already covers 95% of the target yield
• Staff housing or established roommate setups, where turnover would break the dynamic

Hybrid only makes sense if peak-season STR income clearly beats the monthly LTR rent: no gap, no hybrid.

The right indicator for deciding

The ratio between potential peak-season STR income and potential monthly LTR income. If you can make €3,000 in July from STR but the LTR rent tops out at €800 a month, the gap justifies a hybrid strategy. If the gap is less than a factor of 2, pure LTR becomes more profitable on a weighted basis.

Client case: Antoine, who runs a concierge company in Biarritz, tested hybrid on 11 properties starting in April 2025. 7 properties saw their annual income rise by 25 to 60%. 3 properties had a marginal gain (under 10%). 1 property (a large villa in a residential area) lost money compared with pure LTR. Conclusion: he refocused hybrid on his downtown studios and one-bedrooms and moved the villa to a furnished LTR.

The legal tools that make hybrid possible

Hybrid exists legally, but it needs the right legal framework. For a concierge company, that means three concrete things.

A framework for short-term rental

On the STR side, the concierge company operates under its own standard service agreement. No carte G (the French property management license) needed. The property is rented out seasonally under the owner’s status (LMNP or LMP, France’s furnished rental tax statuses), and the concierge company invoices its commission to the owner.

A framework for long-term rental and the mobility lease

On the LTR and mobility lease side, you need a carte G license holder to carry the property management mandate. If the concierge company doesn’t have its own carte G (the case for almost all concierge companies in France), it goes through a delegation. That’s the role of the operational partnership agreement the concierge company signs with a carte G license holder like Unlocker Real Estate. The details of this mechanism are explained in our article on the concierge company without a carte G.

On Unlocker’s side, this framework is kept up to date by the in-house legal team, which continuously tracks the Hoguet Law (the 1970 French law regulating real estate professionals) and how it applies to both short-term and long-term rental. You don’t have to arbitrate legal changes yourself.

A platform that unifies financial flows

With 3 or 4 different rental types, financial flows get complicated fast. Collections through STR platforms, rent direct debits for LTR, security deposits for the mobility lease, recoverable charges, tourist taxes, multiple commissions. Without a tool that centralizes everything, admin kills profitability. Unlocker handles automatic split payment between you, the carte G license holder and the owner on every incoming payment, whatever the rental type. The Unlocker Carte G page details the mechanism with a live commission simulator.

Client case: Camille, who runs a concierge company in Bordeaux, managed her hybrid setup by hand in 2024 with a spreadsheet and 3 separate bank accounts. She lost an average of 4 hours a week on reconciling payments. After moving to a unified platform in September 2025, she cut her admin time to a fifth and was able to double her hybrid portfolio in 6 months without hiring.

Numbers: before and after on 3 typical properties

To see concretely what hybrid changes, here are 3 real cases tracked over 12 months.

Case 1: one-bedroom in Biarritz, 45 m²

Before (pure STR, 2024): €21,400 over the year with 65% average occupancy and 5 slow months from October to February.

After (hybrid, 2025): €31,800 over the year, with 4 months of STR at €10,800 (June to September) + 8 months of student mobility lease at €950 a month (October to May) + €800 for transitions between rental types.

Gain: +48% annual income for the owner, +52% commission for the concierge company.

Case 2: studio in Lyon Part-Dieu, 28 m²

Before (pure LTR, 2024): €9,600 over the year at €800 a month on a standard furnished lease.

After (hybrid, 2025): €13,800 over the year, with 9 months of business mobility lease at €1,100 a month + 2 months of event-driven STR during trade shows at €1,800 a month + 1 month of transition.

Gain: +44% annual income, with roughly the same management structure.

Case 3: studio in Montpellier, 22 m²

Before (pure STR, 2024): €14,200 over the year, 55% occupancy, long slow periods outside summer.

After (hybrid, 2025): €19,600 over the year, with 3 months of peak-season tourist STR (July to September) at €7,200 + 9 months of student mobility lease at €1,200 a month + €400 for transitions.

Gain: +38% annual income.

The pattern that emerges

Across the 3 cases, annual income rises by 38 to 48%. The deciding factor isn’t the geographic area but the combination of seasonal STR demand and the local LTR rent level. When both gaps are wide, hybrid reliably delivers 30 to 60% more income.

Summary table of the 4 rental types

The binary choice between short-term and long-term belongs to the previous generation of the rental market. In 2026, the concierge companies that are scaling seriously have all built hybrid into their offer, not as a premium service for a few owners, but as the default way of working on high-potential properties.

If you want to get started for real, begin by identifying the 3 to 5 properties in your portfolio with the strongest seasonality and the biggest gap between peak STR income and the LTR rent ceiling. Show owners the 12-month comparison with the simulator on the Unlocker Carte G page. To go further on the legal framework, the guide to Unlocker mandates and agreements details every document to sign, and the article on retaining owners as a concierge company gives you the levers to durably anchor the owners you move to hybrid. To complete your setup, building a hybrid offer for your owners details the right mix of yield and peace of mind.