// build_guide
// How to build TN Apartments Act Compliance & Accounts Manager for Residential Flat Associations
Supabase gives you a managed PostgreSQL with row-level security ideal for multi-tenant flat data isolation, plus built-in auth with OTP login suited for non-technical residents. React with Tailwind ensures a clean, mobile-friendly UI that residents can use without training. Render/Railway keeps backend hosting costs under ₹1000/month at micro scale, which aligns with your seed budget.
Complexity 6/10SaaS
// recommended_stack
FrontendReact.js with Tailwind CSS
BackendNode.js with Express (REST API)
DatabasePostgreSQL (structured financial data, audit trails)
AuthSupabase Auth (email/phone OTP for resident access)
HostingSupabase (DB + Auth) + Render or Railway (backend) + Vercel (frontend)
ExtraRazorpay for maintenance fee collection
ExtraPDFKit or React-PDF for statement generation
ExtraWhatsApp Business API or Twilio SMS for payment reminders
Extradate-fns for fiscal year and rotation scheduling logic
// cost_and_timeline
USD min
$4,000
USD max
$9,000
INR min
₹3.3L
INR max
₹7.5L
Typical SaaS projects cost $1,800–$5,000 USD and take 6–8 weeks with an Indian dev team. See the full cost guide →
// timeline_breakdown
1 weekDiscovery & Design
1.5 weeksAuth, Multi-tenant Setup & Role System
2 weeksLedger, Transactions & Accounts Core
1 weekAdmin Rotation Logic & Audit Trail
1 weekRazorpay Integration & Payment Reminders
1 weekPDF Exports, Dashboard & Resident View
1 weekTesting, Bug Fixes & Deployment
// mvp_features[]
## What to build in the MVP
-Multi-tenant flat association setup (4–50 flats per society, each society isolated)
-Role-based access: Super Admin (Secretary/Treasurer), Admin (Committee Member), Resident (View-only)
-Automated admin/committee rotation based on configurable schedule (annual/biannual) as per TN Apartments Act
-Maintenance fee ledger per flat — dues, payments, arrears with running balance
-Manual transaction entry (income & expense) with category tagging (maintenance, repairs, utilities, etc.)
-Razorpay payment integration for online maintenance fee collection
-Flat-wise account statement view — each resident sees only their own ledger
-Association-level income & expense dashboard with monthly/annual summary
-PDF export of flat statement and association balance sheet
-SMS/WhatsApp payment reminders for overdue maintenance
-Audit log of all financial transactions (who entered, when, edits)
-Resident directory per association (flat number, owner name, contact)
// risk_flags[]
## Engineering risks to plan for
!TN Apartments Act compliance specifics (audit requirements, committee tenure rules) need legal validation before coding rotation logic — incorrect automation could expose associations to disputes
!No team + ASAP timeline is a critical bottleneck — this scope needs at minimum one full-stack developer for 8–9 weeks; rushing increases bugs in financial transaction handling where errors are high-trust issues
!Seed budget at lower end (under ₹3.5L) will only cover a stripped MVP without Razorpay integration or reminders — prioritize ledger + transparency features first over payment automation
!Multi-tenant data isolation must be enforced at DB level (Row Level Security in Supabase) from day one — retrofitting this post-launch in a financial app is extremely risky
!Razorpay settlement reconciliation with manual ledger entries is a common source of discrepancy — needs a clear reconciliation workflow designed upfront, not bolted on later
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// related_resources