Planning to Buy a Flat

See Influence From External Numerology Energy for information about how much influence building numbers, floor numbers, and flat numbers have.

Whether or not the flat will be lucky for you depends on what you mean by lucky. If you mean will the flat be a contributor to your successful career or if you mean will you feel at home there, consider the energy as talked about at the above link.

Numerology does not dictate. The energy is available and it brings tendencies and certain likelihoods. But it doesn't come with irrefutable predictions or predetermination.

There is a free online tool called Street Address and Residence Number Calculator that can be used to determine the flat's compatibility with yourself and with others who may be living there. Compatibility may also be a contributor to how lucky the flat will be for you.