Saudi investors accustomed to greenfield mega-projects at home are increasingly looking at a different opportunity class in Türkiye: former industrial sites in and around Istanbul, Kocaeli, and Izmir that carry outdated production uses but sit on land that urban growth has since surrounded. Converting these brownfield parcels into logistics, mixed-use, or light-industrial assets is one of the more underexplored entry points into Turkish real estate, and it comes with a distinct diligence profile that differs meaningfully from a standard land or resale acquisition.
Why Brownfield Sites Are Coming Into Focus
Türkiye's older industrial belts, particularly along the Marmara coastline and the Kocaeli-Gebze corridor, were built decades ago when these areas were peripheral. Metropolitan expansion, metro line extensions, and port modernization have since pulled many of these sites into the path of urban and logistics demand. Owners of aging factories, warehouses, and processing plants are often willing sellers, either because operations have relocated to purpose-built organized industrial zones (OSB) further out, or because the land value now exceeds the value of continued industrial use. For Saudi capital looking for entry prices below prime urban land while retaining upside tied to rezoning, these parcels are worth serious evaluation.
The Core Diligence Differences
Environmental liability : Unlike a clean residential or commercial acquisition, a former industrial site requires a Phase 1 environmental site assessment as a baseline, and frequently a Phase 2 soil and groundwater sampling program if the prior use involved chemicals, fuel storage, metalworking, or heavy manufacturing. Turkish environmental legislation places remediation liability on the current landowner in many cases, not solely the historical polluter, so buyers should treat contamination risk as a transaction cost to be quantified before signing, not a post-closing surprise.
Zoning and imar status : The redevelopment value of a brownfield site depends entirely on whether the local municipality's imar plan (zoning plan) allows conversion to the intended use. An industrial-zoned parcel does not automatically become mixed-use or logistics-eligible; that requires a formal imar plan amendment (imar plani tadilati), a process that runs through the municipality and can take anywhere from several months to well over a year depending on the district and the scale of the change requested. Buyers should secure a written zoning status letter and, where possible, engage the municipality's planning department before committing capital, rather than relying on a seller's representation of "future development potential."
Structural and demolition scope : Older industrial buildings in Türkiye were constructed under building codes that predate the current seismic regulations. Before assuming any structure can be adaptively reused, a structural assessment is necessary to determine whether the shell is salvageable or whether full demolition is the more economical path. In many brownfield conversions, the land value drives the deal and the existing structure is a demolition cost rather than an asset.
Title chain and easements : Industrial parcels, especially those assembled over decades, sometimes carry multiple title histories, shared access easements with neighboring plants, or unregistered informal boundary agreements. A title chain review through the Land Registry Directorate, alongside a cadastral survey, should be treated as a standard step rather than an optional one.
Where the Opportunity Concentrates
The Kocaeli-Gebze axis remains the most active brownfield corridor given its port access and highway connectivity, followed by pockets on Istanbul's Anatolian side where older manufacturing sites are gradually giving way to logistics parks and mixed-use development. Izmir's Aliaga and Kemalpasa districts show a similar pattern on a smaller scale. In each case, proximity to organized industrial zones that can absorb relocating tenants tends to correlate with faster, less contentious rezoning outcomes.
A Measured Approach
Brownfield redevelopment can deliver attractive basis relative to clean land, but the return depends on getting three variables right: environmental exposure, realistic rezoning timelines, and an honest structural assessment. Saudi investors evaluating this category should build environmental and zoning contingencies into the purchase agreement itself, with staged payments tied to due diligence milestones, rather than treating these as post-acquisition workstreams. Working with local environmental consultants and planning counsel from the earliest stage of a brownfield transaction is not an added cost so much as the mechanism that protects the underlying investment thesis.