A minimalist neoclassic design for an apartment in Heliopolis, Cairo, Egypt would likely incorporate elements of both minimalism and neoclassicism. Neoclassicism is a design style characterized by symmetry, order, and simplicity, which is often inspired by the forms and motifs of ancient Greece and Rome.
In this design, minimalism would be used to create a sense of simplicity and serenity, while neoclassicism would be used to bring in elements of order and symmetry. The use of clean lines and a monochromatic color palette would create a sense of calm and elegance. The apartment would likely feature high ceilings, large windows, and classic architectural elements such as columns and pediments.