A group of flats is typically called an apartment complex, apartment building, or housing complex depending on the size and structure. In some regions, it might also be referred to as:
Residential building
Condominium (condo) – if the flats are individually owned
Housing society – common in parts of India
Block of flats – used in British English
Multi-family housing – often used in the U.S.
If you're referring to luxury or upscale developments, terms like residential enclave, gated community, or luxury project might be used.
For your project, you could describe it as a luxury residential enclave or exclusive apartment complex.
Flats are arranged in Blocks
block
Sharps and flats in music are called accidentals; this also includes naturals.
A large building divided into separate flats is called a tenement.
Eb Major and C Minor scales have 3 flats.
Rascal Flats
FLATS had nothing to do with what the women wore. It stood for First Lady Astronaut Trainees. The FLATs were a group of women who applied for astronaut training during the days of the Mercury space program. None of them were ever selected.
They are called "accidentals". This also includes naturals (which make a sharp or flat note in the key signature not sharp or flat for that measure).
C Major
c flat
I think it was called The Crust
In Britain apartments are called flats.