Affording a Marina South Condo: A TDSR Worked Example at Real Marina Bay Pricing
Marina Gardens Crescent's own price list doesn't exist yet — no developer has been confirmed, so any "what will it cost" figure for this specific site would be invented. What can be worked through honestly is the affordability math itself, using a real, sourced Marina South price: One Marina Gardens' actual April 2025 launch average of S$2,953 psf on the neighbouring Marina Gardens Lane site. This is a worked illustration of the financing mechanics at that real, comparable price point — not a price for this project.
The rule that applies: TDSR, not MSR
Marina Gardens Crescent is a private condominium, not an Executive Condominium, so financing is assessed under the Total Debt Servicing Ratio (TDSR) at 55% of gross monthly income — not the 30% Mortgage Servicing Ratio that applies to EC and HDB purchases. There is no income ceiling for a private condo purchase, unlike an EC.
A worked example at One Marina Gardens' real price
Take an illustrative 2-bedroom unit at 700 sqft, priced at the real S$2,953 psf One Marina Gardens achieved: S$2,067,100.
| Item | Amount / rate |
|---|---|
| Illustrative unit price (700 sqft × S$2,953 psf) | S$2,067,100 |
| Max Loan-to-Value (LTV) for a first home loan, no outstanding loans | 75% |
| Loan amount at 75% LTV | S ,550,325 |
| Minimum cash + CPF downpayment (25%) | S$516,775 |
| Illustrative monthly instalment (75% LTV, 30-year tenure, ~3.5% p.a.) | ~S$6,960/month |
| Gross monthly household income needed at 55% TDSR (assuming no other debt) | ~S 2,660/month |
That income figure moves with existing debt: a household already servicing a car loan or another mortgage has less of that 55% ceiling left for this purchase, which is exactly what TDSR is designed to capture. These numbers are illustrative math on a real comparable price, not a projection of what this project will cost — a different eventual land cost, construction cost or market timing could easily put an actual future launch price meaningfully above or below this figure.
Buyer-profile costs that change the total outlay
Additional Buyer's Stamp Duty (ABSD) varies sharply by buyer profile, and Marina Bay-adjacent precincts draw meaningful foreign interest — at One Marina Gardens, about 17% of buyers were PRs or foreigners:
- Singapore Citizen, first property: 0% ABSD
- Singapore Citizen, second property: 20% ABSD
- Singapore PR, first property: 5% ABSD
- Foreigner: 60% ABSD
On the illustrative S$2,067,100 unit above, 60% ABSD for a foreign buyer would add roughly S
What to do with this now
Since Marina Gardens Crescent's own figures don't exist yet, the practical step today is getting your own financing picture in order rather than budgeting to an unconfirmed number. Use the mortgage calculator to model your own LTV and instalment scenario, and the financing page for the fuller stamp duty and loan mechanics. Register on the showflat interest page to be notified the moment real pricing exists, and check registration status for the latest on the site. The price page and location guide track what's confirmed versus TBA.
Sources
The One Marina Gardens psf figure is drawn from EdgeProp's coverage of its April 2025 launch; ABSD and TDSR rates are the standing MAS/IRAS policy framework applicable to Singapore private residential purchases. See citation below.
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