The Option to Purchase locks in the deal. Once you exercise it, backing out costs you the option fee (typically $1,000–$1,500 for a resale HDB) and potentially exposes you to further liability.
The time to do your homework is before you sign — not after.
The remaining lease matters more than people think
HDB resale flats sell on remaining lease, which declines from the original 99 years.
A flat built in 1985 has about 58 years of lease remaining as of 2025.
That affects two things directly:
CPF usage
CPF usage is restricted for flats where the lease does not cover the youngest buyer to age 95.
If you're buying a 1985 flat and you're 32 years old, you have 63 years of lease remaining. That covers you to age 95 — you're fine.
But if you're buying a 1978 flat with 51 years remaining, CPF usage will be pro-rated and the bank loan quantum may be lower.
Resale value
Resale value also matters.
A flat with 60+ years remaining is more liquid and easier to sell.
Below 40 years, the pool of eligible buyers shrinks significantly.
The pre-purchase inspection checklist
Before you sign, visit the unit twice if possible:
- Once in daytime to see natural light
- Once in the evening to understand the block's noise situation
During visits, check:
Walls and ceilings
Look for:
- Water stains
- Yellowish patches near ceiling edges
- Internal corner seepage marks
- Cracks along walls
- Cracks at ceiling joints
- Damp smells in rooms
Singapore's humid climate means seepage is common and expensive to fix.
Toilets
Test both toilets properly:
- Flush both toilets
- Run both showers
- Listen for gurgling sounds
- Check drainage speed
Slow drainage or unusual sounds may indicate blocked drainage that requires plumbing work.
Windows
Open and close every window.
Check for:
- Stiff frames
- Broken louvers
- Poor sealing
- Difficulty locking
These all add to your renovation budget.
Electrical distribution board
Check whether the board is:
- Older MCB systems from the 1990s
- Recently updated
- Showing signs of old wiring
Old wiring in pre-1990s flats often needs full replacement, which can become a major hidden cost.
A licensed electrician can verify this during inspection.
Floor condition
For tiled floors, tap lightly with:
- A coin
- A key
If you hear hollow sounds, it usually means the tiles have lost adhesion.
If the hollow sound is widespread, the entire flooring may need redoing.
How to estimate the true renovation cost before buying
Never make an offer until you have at least a rough renovation budget.
Visit the unit with:
- Your contractor
- A trusted friend who renovated recently
- A professional inspector
Assess the major works needed:
- Does the kitchen need a full teardown or just new doors and countertop?
- Are both bathrooms functional or do they need full retiling?
- Is the main door and all bedroom doors still in good condition?
- Is the electrical wiring original or already updated?
A resale flat that seems $40,000 cheaper but needs $50,000 in renovation is actually more expensive than a newer resale or even a BTO.
Do this math before negotiating.
The professional inspection worth paying for
For resale flats, consider engaging a professional home inspector before exercising the OTP.
Typical costs range from $300 to $600, depending on flat size.
A good inspector will systematically check:
- Structural condition
- Electrical system health
- Waterproofing
- Plumbing
- Fixtures and fittings
This is especially valuable for flats more than 20 years old.
A $400 inspection that uncovers $15,000 in required repairs is often one of the best investments you can make.
The bottom line
A resale flat is never truly “move-in ready” in the same sense as a newly built BTO.
There is almost always something that needs attention.
The real question is whether:
- The renovations are manageable
- The costs are already reflected in your offer
- You have enough budget buffer for surprises
Buy with:
- Eyes open
- An honest renovation estimate
- A contingency budget
Homeowners who regret resale purchases almost always skipped at least one of these three steps.
