Check the legal rent increase on your Dubai property
A free calculator built on the Dubai Land Department's 2026 Smart Rental Index formula. Tells you in seconds how much your landlord can legally raise the rent, or how much you can legally raise it as a landlord. No login. No data captured unless you ask for the follow-up.
What the Smart Rental Index actually is
The Dubai Smart Rental Index is the Dubai Land Department's official benchmark for residential rents. It launched in January 2025 and replaced the old area-based RERA index that grouped every building in a community under the same average rent. The old system treated a poorly maintained 20-year-old tower in Dubai Marina the same as a brand-new building next door. The new one does not.
Every residential building in Dubai now has a 1 to 5 star rating, generated by an AI model that scores buildings across more than 60 criteria. Those include physical condition, finish quality, amenities, facility management standards, and location. A higher star rating means the building's fair market rent sits higher than the area average. A lower rating means it sits lower.
The Smart Rental Index outputs a market rent value for your specific building, your property type, and your size. That number is the anchor for everything that follows.
How the legal rent increase is calculated
The Smart Rental Index sets the fair market value. The increase formula itself comes from Decree 43 of 2013, which is still the governing law. It works in five tiers based on how far your current rent sits below the index value.
| Where your rent sits | Maximum legal increase |
|---|---|
| Within 10% of market value | 0%. No increase permitted. |
| 11% to 20% below market | 5% maximum |
| 21% to 30% below market | 10% maximum |
| 31% to 40% below market | 15% maximum |
| More than 40% below market | 20% maximum |
Two things to note. First, these are ceilings, not entitlements. A landlord cannot increase rent above the relevant tier, but they can offer to keep it flat or raise it less. Second, the formula only applies at lease renewal, not mid-lease. Rent cannot legally change during an active contract.
How to find the Smart Rental Index value for your building
Two ways. Both are free and take under two minutes.
Via the Dubai REST app
Download the Dubai REST app from the App Store or Google Play. Open it and go to the Rental Index section. Enter your community name, building name, property type (apartment, villa, or townhouse), number of bedrooms, and unit size in square feet. The app returns the Smart Rental Index value plus your building's star rating.
Via the Dubai Land Department website
Go to dubailand.gov.ae and find the e-services menu. Select the Rental Index tool. The fields are the same as the app. The output is the same. Use whichever is easier for you.
Once you have the index value, plug it into the calculator above with your current annual rent. The result tells you exactly which tier you fall into and what your landlord can legally do at renewal.
The 90-day notice rule
Even if the math allows a 20% increase, the landlord has to follow procedure. Dubai tenancy law requires the landlord to give written notice at least 90 days before the lease expires if they want to raise the rent at renewal. Notice given less than 90 days before expiry is not legally enforceable, and the rent stays the same for the next year.
Notice can be by email, registered mail, or any written method the contract specifies. The important part is proof of delivery and timing. If the landlord notifies you 60 days before expiry, the increase is not valid regardless of what the Smart Rental Index says.
What this means for you
The calculator gives you a number. What you do with it depends on which side of the contract you're on.
What to do if you disagree with the increase
If the calculator shows the landlord's proposed increase exceeds the legal cap, or the 90-day notice was not met, the first move is a written reply citing both. Most landlords back down at that point, because the cost of losing at the Rental Dispute Centre is higher than the cost of accepting the legal cap.
If the landlord refuses to adjust, the next step is filing with the Rental Dispute Settlement Centre (RDSC), a division of the Dubai Land Department. The filing fee is modest, the process takes weeks rather than months, and rulings are binding. Bring the Smart Rental Index printout, the rental contract, the notice you received, and the date stamps.
What you should not do: stop paying rent, vacate without legal advice, or wait until after the lease expires to act. Each of those weakens your position significantly.
My advice
For tenants: the calculator is your starting point, not your endpoint. Knowing the legal maximum gives you a reference, but the actual outcome at renewal depends on the relationship, the building's vacancy rate, and how easy the landlord thinks it will be to replace you. In a soft area with high vacancy, the legal maximum is rarely what gets paid. In a tight area with low vacancy, it almost always is.
For landlords: do not overreach. The temptation to push a 20% increase the moment a tier opens up is real, but the cost of losing a long-term tenant who pays on time is almost always higher than the marginal income from a one-year rent bump. Run the calculator, set the offer at or near the legal cap if the market supports it, and price in the tenant retention value.
For investors: build the Smart Rental Index check into every acquisition. A property with high current rent but a low star rating is a yield trap. The rents are at risk of stagnating because the building cannot support legal increases without a renovation that raises the rating. Conversely, a property with low current rent in a 5-star building is a yield opportunity, because the legal headroom is real.
Thirty minutes, one on one. No pitch. No pressure.