Run the numbers yourself
Every calculator works in your browser and shows its assumptions. Nothing you type is sent to Aventrix Realty unless you choose to contact us.
Market Rates & Valuation
Work out an indicative value from the area and a reference rate — guideline value, asking prices or sale evidence — with the basis shown.
Estimate a valueJoint Venture Calculator
Model FSI area, saleable area, project costs, residual land value and landowner / developer sharing, then print a discussion proposal.
Open calculatorCommercial Investment
Gross and net rental yield, NOI, cash flow after loan payments, cash-on-cash return and simple payback.
Calculate returnsEMI Calculator
Monthly EMI, total interest and total repayment for a home loan.
Calculate EMIPrepare before you commit
Property Checklists
Due-diligence checklists for flats, land, commercial property, joint ventures and sellers. Print or save as PDF.
View checklistsJV Feasibility Guide
What a JV feasibility covers, the formulas the calculator uses and what an architect and advocate must confirm.
Read the guideGovernment Property Services
Official Tamil Nadu portals for registration, EC, guideline value, land records, planning and RERA.
Open portalsSeller & Landowner Centre
Choose a route — sell, lease or develop — and go straight to the right valuation, listing or JV page.
Get startedThese tools give indicative figures only. Title, approvals, buildability and market value for a specific property need independent verification by an advocate, a licensed architect or surveyor, and a valuer.