Quick Answer
The four things first time condo buyers underestimate: getting an IPA done before falling in love with a unit, what the real monthly mortgage actually feels like versus the down payment, how much to realistically spend on renovation based on how long you'll stay, and the ongoing cost of maintenance and property tax that doesn't show up in the purchase price.
Introduction
The 5% cash down payment is the easy part of buying a condo. It's everything after that, the mortgage, the renovation, the recurring costs, that buyers tend to underestimate. I'm Dennis, a fixed fee property agent with HomeUp in Singapore that charges $1,999 to sell an HDB flat instead of the usual 2% commission. Here are the four factors I see first time condo buyers overlook most.
Why Is an IPA the First Step, Not an Afterthought?
You only need a minimum 5% cash to buy a condo. The remaining 20% can come from CPF, and 75% from a bank loan. The In-Principle-Approval (IPA) step is one of the most critical financial mistakes a first-time home buyer can make. Without this preliminary guarantee from a bank, you are essentially shopping blindly, putting your hard-earned booking fees at immediate risk.
An IPA tells you the maximum loan a bank will actually extend, based on your real income, not the headline 75% everyone assumes they'll get. If your income falls short, you might not get the full 75%. How much cash do you actually need? What price range can you really afford? You can't answer either question properly until the IPA is done, so do it before you start viewing, not after you've found the unit you want.
What Does the Monthly Mortgage Actually Feel Like?
From what I've seen with clients, the down payment is usually the easy part. The real test is the monthly mortgage, year after year.
Say you qualify for a $1 million loan, 30 year tenure, at a 1.5% interest rate. Your monthly mortgage works out to roughly $3,450.
Committing to that monthly payment for the next 20 to 30 years is what drives a lot of younger buyers away, and buying a condo genuinely isn't for everyone. If you're single, you need the discipline to keep earning enough to service it alone. If you're a couple, you need each other's support, and probably some cuts to discretionary spending. Property is also a hedge against inflation, and the mortgage itself becomes a kind of forced savings. With a loan to service, you'll probably buy fewer luxury watches or branded bags 🙂 and that money compounds into real equity over time through two channels, the condo's capital appreciation and the forced savings itself. Without that mortgage pressure hanging over you, you might also find yourself less motivated to work hard, since you're not as locked in by the monthly number.
How Much Should I Actually Spend on Renovation?
How much to spend on renovation depends entirely on how long you plan to stay. As a general guide, try not to go beyond $100,000, with $50,000 to $80,000 being a reasonable target.
If you're planning to sell within three to five years, put more of your budget into furniture and appliances rather than built in fixtures. Furniture moves with you to your next home, fixtures don't. Trends also shift fast, what looks current today can feel dated within a decade. And every dollar spent on renovation is a dollar that doesn't come back to you as net profit when you sell.
What Recurring Costs Catch Buyers Off Guard?
Beyond the mortgage, you're looking at monthly condo maintenance and yearly property tax. Maintenance for a mass market condo typically runs $300 to a few hundred dollars more, paid quarterly in advance to the management office, though this varies by development and has been trending upward.
Property tax is calculated on your property's Annual Value, and rates differ depending on whether you occupy the unit yourself or rent it out. Owner occupied rates currently start at 0% on the first $12,000 of annual value and rise progressively to 32% above $140,000. Non owner occupied rates start at 12% and rise to 36%.
How HomeUp Approaches This
Most of what trips up first time condo buyers isn't the purchase price, it's the ongoing numbers nobody walks them through upfront. At HomeUp, we run through the real monthly mortgage, recommend the renovation budget, and the recurring costs with every first time buyer before they commit, not after. [Book a planning call with HomeUp →] [See how we price selling your HDB →]
Conclusion
The purchase price gets all the attention, but it's the IPA, the real monthly mortgage, the renovation budget, and the recurring maintenance and tax that decide whether the condo actually fits your life. Get an IPA done first, and build your numbers around the ongoing costs, not just the down payment. Thinking about your next move? [Book a planning call with HomeUp →] WhatsApp +65 8087 7015.
FAQ
Why should I get an IPA before viewing condos?
An IPA tells you the actual maximum loan a bank will give you based on your real income, not the headline 75% LTV everyone assumes. It answers how much cash you need and what price range you can really afford.
What's a realistic monthly mortgage on a $1 million condo loan?
At a 1.5% interest rate over 30 years, roughly $3,450 a month. Rates change, so always confirm the current figure with your bank's IPA rather than relying on a fixed example.
How much should I budget for condo renovation?
A general guide is $50,000 to $80,000, not exceeding $100,000, though actual costs have risen since this guideline was set. If you plan to sell within 3 to 5 years, prioritise movable furniture over fixed renovations. 
How does property tax differ between owner occupied and non owner occupied condos?
Owner occupied rates are lower, starting at 0% and rising to 32% on higher value properties. Non owner occupied rates start at 12% and rise to 36%.