İstanbul Metropolitan Municipality
("İMM") Council, with its Decision
No. 414 dated 13 March 2025, decided to add a plan note to all
development zoning plans across İstanbul, enabling the
creation of "independent units" in attics, and further
decided that district municipalities must make the necessary
amendments to their implementation zoning plans accordingly
("İMM Decision").
Accordingly, on parcels where residential construction is
permitted by zoning plans, it would be possible to build attic
apartments that can be inhabited as residences and used as
residences and have separate title deeds, provided that they remain
within the limits of the top floor ceiling slab, including eaves,
and the roof slope and meet the minimum structural units and
dimensions specified in the relevant regulation.