I am curious about banglo/land lot in G&G/strata development, am considering for (far into the) future upgrade

1. there will be monthly maintenance fee, similar to condo, right? is it also calculated based on land area?

2. will one need to start paying from house build or from land purchase time

3. and lastly what is the price like, for example in SEH, how much psf each month?

thank you sifus in advance