Things to Check Before Booking a Flat in Mumbai
Booking a flat in Mumbai, India’s most dynamic real estate market, is a huge step. While the excitement is real, it’s equally important to tick off a checklist to avoid regrets later. Here’s everything you must verify before paying that token amount.

Check RERA Registration
- Ensure the project is registered with MahaRERA
- Use the RERA number to validate details online at maharera.mahaonline.gov.in
Never book a flat in an unregistered project.
Verify Carpet Area
- Understand the actual usable area
- Builders are legally required to sell based on carpet area only
Ask for a floor plan with the carpet area marked.
Location & Connectivity
- Assess distance from railway stations, highways, metro, and key hubs like BKC or Powai
- Upcoming infrastructure can drastically boost future appreciation
Areas like Chembur, Kurla, and Wadala are rising due to new metro links and road expansions.
Track Record of the Builder
- Check past projects for delays, quality, and post-possession support
- Look for builders with a strong track record and good customer feedback
Construction Stage & Possession Date
- Know whether the project is newly launched, mid-stage, or nearing completion
- Always get a written commitment on the possession timeline
Check the MahaRERA site for accurate construction updates.
Legal Due Diligence
- Verify land titles, building approvals, and any pending litigations
- Ask for the Commencement Certificate (CC) and Intimation of Disapproval (IOD)
Consider consulting a real estate lawyer before making a large payment.
Check for OC and NOCs (for ready-to-move-in projects)
- Ensure the building has an Occupancy Certificate (OC)
- NOCs from the fire department, water, and electricity authorities are essential
Pricing & Hidden Charges
- Clarify what’s included in the quoted price—floor rise, parking, GST, maintenance, etc.
- Ask for a detailed cost sheet
Don’t hesitate to negotiate or compare with nearby projects.
Amenities & Specifications
- Verify if the promised amenities will be delivered
- Visit the sample flat to check flooring, fittings, height, ventilation, etc.
Payment Plan & Financing Options
- Understand the payment milestones (e.g., slab-wise, possession-linked)
- Check bank approvals and whether home loans are available for the project
Conclusion
Due diligence today can save you from headaches tomorrow. Booking a flat is a big commitment; make it with full awareness.
At Upgrade Realty, we guide you through the legal, financial, and technical details of every property so you can book with 100% confidence. Call us for a free consultation today!