The value of a plot of land does not come from its location or view alone; how much you can build on it, and in what form, is set out in its zoning status. Yet for many people about to buy land, the basic questions remain unclear: what exactly is a zoning status certificate (imar durumu belgesi), how does TAKS differ from KAKS, and how do setback distances shape a design? In this article we explain where the document comes from, the key concepts it contains and how those figures translate into a house. Our aim is to help you see the important checks early and ask the right questions before you commit.
What is a zoning status certificate and where do you get one?
A zoning status certificate is the official document showing what use a plot has been allocated under the current zoning plan, and on what terms it can be built on. It states whether the plot is designated for housing, commerce or another use, along with its ground coverage and floor area ratios, the permitted height, setback distances, the building pattern and any notes specific to the plan. Most of the limits an architect works within at the start of a design come from this document. It is also often the first place where you discover that part of the plot has been set aside for a road, a park or another public use.
If the plot lies within the boundaries of a municipality and its adjacent jurisdiction area (mücavir alan), the certificate is issued by that municipality’s planning department. Outside those boundaries, the responsible body is usually the provincial special administration (il özel idaresi). Some municipalities accept applications online or publish plan information on their own mapping systems, but if a decision is going to rest on it, obtaining a current, officially approved document is the sensible route. Applications usually ask for the title deed details and the block and parcel number. As the required paperwork and fees vary between authorities, we suggest checking with the relevant office first.
What are TAKS and KAKS (floor area ratio)?
TAKS, the ground coverage ratio, is the ratio of the building’s footprint to the area of the plot. On a plot with a TAKS of 0.25, the footprint of the building cannot exceed a quarter of the plot area. This figure decides how much of the land will be covered by the building, and therefore how much remains for the garden, parking and trees. Whether a house is conceived as a single, spread-out storey or as two storeys on a narrower footprint is a question that very often begins with TAKS.
KAKS, more commonly known as emsal, is the ratio of the combined area of all floors counted towards it to the plot area. It sets the upper limit of the total floor area that can be built on the plot, while the way that area is spread across floors is decided together with the height and storey limits. There is one more detail worth knowing: certain areas defined in the regulations may, under specific conditions, be excluded from the emsal calculation. As a result, the total gross area of a project can differ from the figure the ratio produces, and which spaces count has to be checked separately for each project.
Height, setback distances and building pattern
The height limit (Hmax) defines the maximum height a building may reach above a specified reference level; some plans give a number of storeys instead of, or as well as, this figure. The level from which height is measured has a direct effect on the design, particularly on plots that sit above or below the road. Setback distances, in turn, show how close the building may come to the front, side and rear boundaries. The area left inside these lines is the real ground on which the building can stand, and on narrow or irregular plots it can be smaller than the footprint TAKS would allow.
The building pattern describes how a building relates to its neighbours, and plans often show it with a letter and a number: the letter gives the pattern and the number the storey count. Plan notes, meanwhile, add conditions specific to that area on top of the general rules. They may impose further limits on roof form, facade materials, the protection of existing trees or parking. These notes can sometimes be more decisive than the headline figures, which is why the certificate should always be read together with its attachments.
- Detached (ayrık): The building stands on its own, set back from every boundary by the required distances; this is the most common pattern for individual houses.
- Attached (bitişik): The building adjoins the neighbouring building on one or both sides, and no side setback applies on those sides.
- Block (blok): Several buildings or units are treated as a single mass within a block whose dimensions are fixed by the plan.
- Reference level (kot): The point that fixes where height and the ground floor are measured from; road and natural ground levels become important here.
A hypothetical calculation: what fits on a 500 m² plot?
To make these ideas concrete, picture an entirely hypothetical plot: 500 m² in area, with a zoning status showing a TAKS of 0.20 and a KAKS of 0.30, a detached pattern and two storeys. With a KAKS of 0.30, the total floor area counted towards the ratio comes to roughly 500 × 0.30 = 150 m². A TAKS of 0.20 limits the footprint to no more than 100 m². The first arrangement that comes to mind, then, is a two-storey house with a 100 m² ground floor and a 50 m² upper floor.
The calculation does not end there, though. Once the setbacks are applied, the shape of the plot determines whether a 100 m² footprint actually fits. Areas that can be excluded from the ratio may increase the total gross area, while plan notes may introduce further limits. Slope, orientation and neighbouring buildings also influence where the mass can sit on the plot. A rough calculation like this only offers a starting point; the real figures are set by the plot’s own zoning status and by how the relevant authority currently applies the rules.
Why do cadastral records, boundary staking and soil surveys matter?
The zoning status tells you what a plot could become; the cadastral records tell you what it actually is. The area, boundaries and any annotations on the title deed are the basis of every zoning calculation. Yet the boundaries on paper do not always match the walls, fences or tree lines on the ground. Boundary staking (aplikasyon), in which a surveyor marks the corners of the plot on site, is therefore one of the most useful checks to make before buying, and it can also reveal encroachments from neighbouring plots.
A soil survey (zemin etüdü), meanwhile, reads what lies beneath the surface. Prepared by geological or geophysical engineers, it sets out the bearing capacity of the ground, the groundwater conditions and any potential risks. It is required at the building permit stage in any case. However, since weak ground can significantly change both the foundation solution and its cost, it is wiser not to wait for the permit stage when there is any doubt. Ground conditions can also affect the decision on a basement and where the building sits on the plot.
What to check before buying land: the feasibility study
A feasibility study commissioned from an architect before you commit to a purchase turns the figures in the zoning status into a real idea of a building. In this work we first read the certificate, the plan notes and the cadastral information together; we then visit the plot to assess the slope, sun, wind, views, neighbouring buildings and access. The result is a short report setting out the possible building masses, approximate areas and the constraints that should not be overlooked.
The information in this article describes the general framework and is not a substitute for legal advice. Zoning values vary from plan to plan and regulations can be updated over time, so for every plot the current zoning status should be obtained from the relevant authority and the figures confirmed there. As a next step, note down the block and parcel details of the land you are interested in, obtain its zoning status certificate and look for answers to the following questions before you buy:
- Is the plot’s designated use compatible with what you want to build?
- Do TAKS, KAKS and the storey limit provide the floor area you need?
- Once setbacks are applied, is the remaining buildable area large enough?
- Do plan notes, or a special status such as a conservation or coastal area, call for additional approvals?
- Do the boundary staking and ground conditions bring any unexpected limits or costs?
Frequently Asked Questions
Is the zoning status the same as the title deed?
No. The title deed shows ownership and the registered details of the plot, whereas the zoning status explains what can be built on it under the zoning plan. A deed that describes the land as a building plot does not mean you can build a house of any size you like. Reading the two documents together gives you the full picture before you buy.
What is the difference between emsal and TAKS?
TAKS limits the footprint of the building on the ground, in other words how much of the plot it may cover. Emsal, or KAKS, limits the combined area of all floors counted towards the ratio. Put simply, TAKS defines the building’s imprint and emsal its overall size. Considered together with the storey limit and setbacks, they reveal the realistic limits of what can be built on the plot.
Can a plot’s zoning status change over time?
Yes. Zoning plans can be revised or amended, and regulations may change as well. Rather than relying on an old document or on information passed on by the seller, you should obtain the current zoning status from the relevant authority close to the time of your decision. It is also worth asking whether any plan amendment is currently on public display for objections.
Can you build a house on land without a zoning plan?
Building outside the boundaries of a zoning plan is subject to separate rules and is often more restricted. The type and size of building allowed, and the permits needed, depend on where the land is and how it is classified. If you are considering such land, we recommend obtaining written information from the relevant authority and reviewing the situation with an architect before you buy.
What should I bring to an architect for a feasibility study?
The title deed details, block and parcel number, a current zoning status certificate, any plan notes and the boundary staking sketch are a good start. Photographs of the land and information on access also help. Just as important is a short brief describing the kind of home you have in mind; the study becomes meaningful when it weighs those needs against what the plot allows.
