What is the exploitation factor and how much can I build on my plot in Lebanon?

Also asked as: “What is the exploitation factor in Lebanon?” · “What is the building ratio on a plot in Lebanon?” · “How many floors can I build on my land in Lebanon?” · “What are the surface and total exploitation factors?”

What the exploitation factor means#

Exploitation factors are the ratios that limit how much you may build on a plot. According to a 2023 academic paper on the Building Law, Decree 15874 of 2005 and Decree 617 of 2007, which implement Building Law 646/2004, define two of them: a surface exploitation factor and a total exploitation factor^[1]. The sources we read do not explain how each one is measured. Ask your engineer to show you, on your own plot, what each factor allows.

The same paper says balconies may add up to 20% and external walls up to 35 cm^[1]. It does not say what the 20% is measured against, so ask your engineer before you plan around it.

The factors are set zone by zone in each area's planning rules, and we found no published table or worked example for any zone^[1]. Anyone who quotes you a factor for a plot should be able to show you where it comes from. For everything else to check on land, see what to check before buying land.

Finding the figures for your plot#

Start with the plot on paper. A plot is identified by its governorate, district, real estate zone, property number, section and block^[5,6], where they apply. With these you can get an official property certificate (ifadeh aqariyeh). It describes the plot, its area and owners, and shows mortgages, seizures and pending court actions. If the plot has not been finally surveyed, the area is not shown^[6,7].

Then check where the plot is on the ground. According to Kallas Law Firm, reading Decree 188/1926, where boundaries on the cadastral plan differ from those on the ground, the plan prevails^[8,9]. LIBC wrote in 2021 that the Cadastre monitors the sworn surveyors and engineers it treats as its affiliates^[10]. We found no published procedure or fee for ordering a plan or a survey. More in getting a cadastral map or survey.

Unsurveyed land works differently. Kallas Law Firm says a Land Registry opens in a cadastral region only after survey works there are completed and certified. Until then, a provisional delimitation and publication procedure comes before any new registration, and objections must be filed within two months^[8,9]. The Monthly Magazine reported in 2015 that land never surveyed, about a quarter of Lebanon and most of Baabda, Matn, Chouf, Aley and Keserwan, is recorded only in booklets kept by mukhtars^[11]. Annahar reported on 30 March 2026 that Finance Ministry Circular 609/2026 has unsurveyed land and mushaa registered first in the State's name and bans ilm wa khabar certificates for them^[12]. Its effect on ordinary private sales is not known. Ask a property lawyer or the Directorate General of Land Affairs before you buy such a plot.

Finally, the zoning. Kallas Law Firm advises pairing the Land Registry check with a review of the municipal master plan, because planning, expropriation and building laws limit what an owner may do^[13]. No source we read names the office that gives a plot's zoning. The municipality and the DGU are the likely places, so have your engineer ask both. See how to find a plot's zoning.

Why what is built may differ from what is allowed#

The building next door is a weak guide. A permit is granted under the laws and zoning rules in force on the date of grant^[2], so an older building may have been permitted under different rules. The same 2023 paper says contractors and residents exploit gaps in the law to build beyond the licence, inflating the exploitation factors^[1].

The owner of a building carries the consequences of overbuilding. Law 139/2019 Art. 14(5) excludes violations committed after 1 January 2019 from its settlement scheme and says they are to be demolished^[14]. Newer work is dealt with under Law 646/2004 Art. 23. Under that article, work done without a permit, or against it, that conforms to the planning and building rules can be permitted with a fine of twice all the fees due^[3] on the part already built. Work that does not conform must be demolished by the owner, or by the administration at the owner's cost. Ask a lawyer or the municipality how these rules apply to a given building.

A clean certificate does not prove that there is no violation. A violation goes on the property's folio only at the request of the municipality or the technical administration^[3]. For buildings inside road setbacks, Law 139/2019 lets the administration keep its right to demolish even after the fine is paid^[15]. Here is how to check for violations before you buy.

Small houses: the model-design route#

Law 294/2022 offers a reduced-fee route for small houses built from official model designs: they get 50% off permit and municipal fees^[4]. A model-design house may have at most 2 floors, 250 m² total, 150 m² per floor, 7.5 m high. Basements are not allowed, and each owner may use the route only once. A model-design permit is valid for two years, renewable once for two years. More in the model-design permit discount.

The route does not apply everywhere. It excludes governorate centres and main cities, archaeological and tourist areas, nature reserves, and landslide and flood zones. Unclassified areas designated agricultural in the master plan stay under the rules of the Higher Council of Urban Planning^[4]. The law is in force for five years from 21 April 2022, which by our count runs until about April 2027. We could not confirm whether it has been extended, so ask the municipality or the DGU before you plan around it.