Building a house in Bangalore involves more than just design and construction. Before starting work, homeowners must obtain the necessary approvals from the relevant authority, such as BBMP, BDA, BMRDA, or the local Gram Panchayat, depending on the location of the property. 1. Verify Property Documents Before applying for approvals, ensure you have: Sale Deed Khata Certificate and Khata Extract Encumbrance Certificate (EC) Latest Property Tax Receipts Survey Sketch and Site D