Commercial Real Estate

Commercial Real Estate by the Numbers (Île-de-France)

Some key figures to put the market into perspective:

The existing stock. Île-de-France is home to approximately 55 million square meters of office space, 80% of which is located in Paris and the inner suburbs. It is the leading office market in continental Europe, ahead of Munich and Milan.

Absorption. In a typical year, between 2 and 2.5 million m² of office space is leased or sold in Île-de-France. Since 2022, demand has contracted to around 1.8 to 2 million m², reflecting companies’ caution regarding hybrid work.

The vacancy rate. On average, 40% of office space in Paris is vacant.

Rents. Rents for new or renovated buildings in the Central Business District (CBD) range from €900 to €1,000/sq m/year. The average rent in Paris otherwise ranges from €450 to €650/sq m/year. In the Inner Suburbs, expect €250 to €400/m²/year. These ranges vary considerably depending on the building’s condition, amenities, and lease term.

‍

The three ways to occupy an office

Choosing the occupancy model is the first strategic decision in commercial real estate. Each option has its advantages and limitations.

The standard commercial lease (3/6/9). The company signs a 9-year lease, with the option to terminate at each three-year mark (3rd and 6th anniversary), subject to 6 months’ notice. This is the traditional model, which offers maximum stability and freedom in terms of interior design, but requires a long-term commitment and offers little flexibility. The upfront costs are high: security deposit (3 to 6 months’ rent), brokerage fees, and renovation costs.

The short-term lease (or temporary lease). With a maximum term of 3 years, it allows for a shorter occupancy period without the protections (or constraints) of a commercial lease. Ideal for testing a location or covering a transition period. Note: if the occupancy continues beyond 3 years, the lease automatically converts to a commercial lease.

Service provision (managed office). The company does not sign a lease but rather a service agreement with an operator who provides a fully equipped and managed space. Starting at 12 months, all-inclusive budget, zero operational management. This is the fastest-growing model, driven by the demand for flexibility.

‍

Cost items to control

Real estate is the second-largest expense for companies after salaries. But unlike salaries, it is rarely managed with the same rigor. Here are the components to monitor:

Rent accounts for 50 to 65% of the total cost. It is the most visible expense, but not always the most costly in proportion. Be sure to distinguish between the listed rent (the advertised amount) and the effective rent (after deducting any negotiated discounts, tiered rates, and benefits).

Rental charges (15% to 25% of the total) cover expenses related to co-ownership, maintenance of common areas, security, and building management. They are passed on by the landlord and can vary significantly from one building to another.

Taxes (5% to 10%) include property tax (often passed on to the tenant), the office tax (specific to the Île-de-France region, ranging from €4 to €22/m²/year depending on the zone), and the CFE.

Internal services (10 to 20%) encompass cleaning, maintenance, reception, security, furniture, and supplies. These costs are often spread across multiple budgets (general services, IT, HR) and are therefore poorly consolidated.

Opportunity cost is the hidden expense: the square footage you pay for but that no one uses.

‍

5 ways to optimize your commercial real estate

1. Know your actual occupancy. Before optimizing, measure. What is your average occupancy rate? Which spaces are underutilized? Which days are the busiest? Without this data, you’re optimizing blindly. Simple solutions (badge tracking) or sophisticated ones (IoT sensors) can provide a reliable overview in 4 to 8 weeks.

2. Adapt the space to actual needs. If your average occupancy rate is 60%, you’re paying for 40% too much space. Three options: reduce the space (relocate, partially vacate), reorganize into a flex office to increase density, or monetize excess space through a third-party operator.

3. Negotiate at the right time. The rental market is cyclical. When vacancy rates rise (as is currently the case in several areas of the Île-de-France region), landlords are more inclined to offer rent-free periods (3 to 12 months), contributions toward fit-out costs, or more flexible exit terms. Keep an eye on your lease expiration dates and start discussions 9 to 12 months in advance.

4. Consolidate your costs. Consolidate all real estate expense items (rent, utilities, taxes, services, maintenance) into a single dashboard. Calculate your cost per employee and compare it to market benchmarks. Many companies discover significant savings simply by making these costs visible.

5. Make the most of unused space. An empty floor, an unoccupied wing, workstations freed up by remote work. These spaces have value. Rather than leaving them vacant, models such as service provision allow them to be transformed into managed office spaces and generate recurring revenue. This is the approach Sora offers: the company retains its lease, while an operator manages and markets the surplus space.

‍

Trends transforming the market

The contraction of office space. Companies are reducing their real estate footprint. The average space per employee has dropped from 15 m² in 2019 to 10–12 m² in 2025. This trend is accelerating with the widespread adoption of hybrid work.

The rise of the “service-based office”. Companies want turnkey offices with services included, just as they consume SaaS rather than installing servers. The office is becoming a service, not an asset to manage.

The Tertiary Decree. The requirement to reduce energy consumption in buildings larger than 1,000 m² (by 40% by 2030) is pushing owners to renovate and companies to prioritize energy-efficient buildings. “Energy-inefficient buildings” are becoming less attractive, creating a two-tier market.

Geographic polarization. Areas with good transportation links and a wealth of services are seeing concentrated demand. Outlying areas with poor connectivity are seeing vacancy rates skyrocket. The choice of location has never been more critical.