istaycondo.com brings together the calculators, market data and plain-English guides you need to move from your flat to private property with your eyes open.
Purpose-built for HDB upgraders. Every calculator uses current MAS and IRAS rules.
See exactly how much condo you can afford โ TDSR, MSR, LTV and the 4% stress test, done for you.
Open tool โBSD and ABSD calculated for your buyer profile, so there are no five-figure surprises.
Open tool โSearch past condo transactions by project, district and price. Charts show where the market is heading.
Open tool โTurn your HDB sale proceeds into a clear condo budget โ cash, CPF, loan and duties in one view.
Open tool โFive reads that cover 90% of what trips people up.

The end-to-end playbook: readiness, the numbers, timing, ABSD, and a 10-step roadmap for HDB upgraders.

The single decision that determines your stress levels, cashflow โ and whether you owe ABSD at all.

Your budget is the lowest of three ceilings โ TDSR, LTV and cash+CPF. Here's how to find it.

The biggest avoidable cost in an upgrade โ when 20% ABSD applies, and the two ways to legally avoid it.

The two rules that decide your loan size, why the 4% stress rate matters, and which limit binds you.
Confirm MOP, clear high-interest debt, and get an In-Principle Approval so you know your real loan ceiling.
Use the affordability calculator and upgrade planner to turn income, CPF and sale proceeds into a firm number.
Sell-first or buy-first? This choice decides whether you pay ABSD โ we help you model both.
Compare projects with live-style transaction data, then move on the right unit at the right price.
Plug in your income, savings and expected HDB sale price. In seconds you'll know the condo price you can support โ loan, downpayment, CPF and stamp duty included.
Open the upgrade planner