Real estate investment in 2024 is viewed through three variables that have moved simultaneously: the regulatory framework for furnished rentals, energy performance requirements, and the tax treatment of depreciation upon resale. Measuring the impact of each on net yield allows for distinguishing between operations that are still viable and those that expose investors to a silent erosion of profitability.
Localized Regulatory Risk: What Separates Two Identical Gross Yields
Two properties showing comparable gross yields can diverge significantly depending on the municipality in which they are located. The Le Meur law, enacted on November 19, 2024, has reshuffled the cards by giving municipalities in tight zones the ability to reduce the maximum duration of short-term rentals of a primary residence from 120 to 90 days.
This lowered ceiling directly modifies the projected revenue of a property operated as a seasonal rental. A municipality that activates this option causes a loss of a quarter of the annual rental potential compared to the previous regime.
The law also strengthens local powers regarding change of use permits and gradually generalizes the registration of tourist accommodations. Before signing, checking the applicable municipal regulations becomes as essential as analyzing the rental market itself. The resources available on Guide Immo allow for cross-referencing these regulatory parameters with local market data.

Energy Performance and Tourist Rentals: Regulatory Thresholds Overview
Energy performance is no longer just a commercial argument. For new tourist accommodations subject to change of use authorization, a DPE between A and E has been required since November 21, 2024. The regulatory timeline anticipates a tightening towards classes A to D starting in 2034.
| Deadline | Authorized DPE Classes | Impact on the Investor |
|---|---|---|
| Since November 21, 2024 | A to E | Properties classified F or G can no longer obtain change of use authorization for tourist accommodation |
| Starting in 2034 | A to D (regulatory goal) | Properties classified E will need to be renovated or exit the tourist market |
This constraint requires integrating the cost of energy renovation works into the yield calculation. A property classified F acquired at a discounted price may seem attractive, but the energy renovation budget conditions access to the tourist rental market.
Thermal Strainers: Opportunity or Cash Flow Trap
Buying a poorly rated property to renovate remains a documented strategy. The acquisition price is generally lower, allowing for negotiation room. However, the risk lies in the gap between the time of purchase and when the property starts generating rental income.
During the renovation period, the investor bears the loan payments without receiving any rents. If the project exceeds the initial deadlines or budget, the actual net yield diverges significantly from the projected yield. This time variable is often underestimated in profitability simulations.
LMNP Status and Capital Gains upon Resale: The Tax Change of 2025
The status of non-professional furnished rental (LMNP) under the real regime historically allowed for the deduction of depreciation from taxable income without reintegrating it upon sale. Since February 15, 2025, deducted depreciation is reintegrated into the calculation of taxable capital gains.
This modification was not included in guides written in 2024. It changes the game for any property purchased during that period and sold later. An investor who has deducted several years of depreciation finds themselves with a significantly higher taxable base upon resale.
What This Changes in the Calculation of Overall Yield
The yield of a rental investment is not solely measured by the rents received. The exit taxation weighs on the final performance. Three elements must now be included in any serious simulation:
- The cumulative amount of depreciation deducted during the holding period, which will increase the taxable capital gain upon sale
- The anticipated holding period, as holding period allowances gradually reduce capital gains tax
- The differential between the real regime and micro-BIC, which can reverse depending on the property profile and resale horizon

Net Rental Yield: Often Overlooked Expense Items in Simulations
Profitability projections published online frequently omit several expense items. Property management, rental vacancy, routine maintenance works, and property tax substantially reduce gross yield.
An attractive gross yield can mask a mediocre net yield if these expense lines are not quantified from the outset of the project study. Rental vacancy, in particular, varies greatly depending on location and property type.
Non-occupant owner insurance, condominium fees, and any regulatory compliance updates (smoke detectors, mandatory diagnostics) are recurring charges to be included. The net yield after tax remains the only reliable indicator for comparing two operations against each other.
The convergence between tightening regulations on short-term rentals, increasing energy requirements, and the reintegration of LMNP depreciation outlines an environment where the margin of error on a real estate investment has diminished. The most resilient operations are those whose yield has been calculated by integrating these three parameters from the outset, not those that display the best gross rate in an advertisement.



