Two confirmed-list tenders, two completely different property bets — and the construction cost data already tells you what these sites are worth before a single analyst has filed their forecast.
What These Two Sites Are Really Saying
URA dropped two confirmed-list residential sites in the same announcement, and the instinct is to read them together. Don't. Marina Gardens Lane in Marina South and Orchard Boulevard in D10 are not the same bet with a different postcode — they're two completely different demand signals, going to two completely different buyer pools, priced into two completely different supply narratives.
Marina South is a precinct-building play. This is the third GLS site here. The first two produced One Marina Gardens (937 units, 70.5% sold since April 2025) and an adjacent site awarded at $1,402 psf ppr in July 2023. The government is building a new residential node at the southern waterfront, and this tender is the next chapter of that story. Mixed-use requirement — residential above, ~150 sqm commercial at ground floor — plus underground MRT connectivity (TEL, Marina South station) gives developers a specific pitch to make at launch. The problem is the unit count: 390 homes from 33,642 sqm GFA means developer margin pressure on the land bid. Large-scale projects don't earn boutique premiums at launch, and this precinct has no established school catchment — a real drag on family-upgrader demand.
Orchard Boulevard is the opposite in almost every dimension. A boutique site: 3,438 sqm, 9,627 sqm GFA, ~110 homes, D10, residential only. The track record on this exact street is as clear as it gets — UpperHouse at Orchard Boulevard moved 82.1% of units within roughly a year at an average of $3,350 psf (234 transactions, URA data). The previous GLS on this street awarded at $1,617 psf ppr in February 2024. Developers know the playbook here. Small unit count, premium CCR address, high-net-worth buyer pool that largely ignores ABSD, constrained supply. The main cost headache: all parking must go at basement levels (a site condition), which pushes construction costs above the standard RLB benchmark.
Site Comparison
| Site | GFA / Units | Tenure / Use | Nearest GLS Comp (psf ppr) | Tender Closes |
|---|---|---|---|---|
| Marina Gardens Lane | 33,642 sqm GFA / ~390 homes | 99-yr / Mixed-use (res + 150 sqm comm) | $1,402 psf ppr — adj. site, One Marina Gardens (Jul 2023) | 12pm Oct 15, 2026 |
| Orchard Boulevard | 9,627 sqm GFA / ~110 homes | 99-yr / Residential only | $1,617 psf ppr — UpperHouse site (Feb 2024) | 12pm Oct 29, 2026 |
What Developers Will Pay — And What They'll Charge
This is the part no one else publishes. The following is derived from RLB's published construction cost benchmarks and URA's GLS transaction database. No analyst estimates were used as inputs.
The framework: start from what each project will realistically sell for at launch, subtract the full non-land cost stack (construction, professional fees, finance, marketing), and what remains is the land price a developer can afford while hitting their margin target. Run it at 15% (competitive bid) and 18% (cautious bid) to get the range.
Marina Gardens Lane — Cost Stack
Expected launch PSF: ~$2,700–$2,750 psf (strata, stated assumption). Calibrated to One Marina Gardens' trajectory — a 937-unit project launched at the adjacent waterfront site in April 2025 at strong absorption. The 390-unit mixed-use project has a similar waterfront premium but different product mix. Revenue on GFA basis at 78% strata efficiency: approximately ~$2,106–$2,145 psf of GFA.
| Cost Component | Low (psf GFA) | High (psf GFA) | Source / Basis |
|---|---|---|---|
| Construction (all-in) | $343 | $432 | RLB Singapore Regional Report, Good Quality Condo, 3Q 2025, p.21. No boutique premium — 390 units at scale. |
| Professional fees | $10 | $17 | 3–4% of construction cost. Stated assumption. |
| Finance costs | $30 | $42 | 3.0–3.5% p.a. over 2.5–3 year build period on non-land stack. Stated assumption. |
| Marketing | $32 | $32 | 1.5% of GDV (~$2,125 psf GFA-basis revenue). Stated assumption. |
| Non-land total | $415 | $523 | Sum of above components |
Roncasa implied bid — Marina Gardens Lane:
At 15% margin (competitive): ($2,125 ÷ 1.15) − $469 non-land mid = $1,848 − $469 = $1,379 psf ppr
At 18% margin (cautious): ($2,125 ÷ 1.18) − $523 non-land high = $1,801 − $523 = $1,278 psf ppr
Roncasa implied range: $1,270–$1,400 psf ppr
Analyst consensus for reference: Huttons at $1,350–$1,450, ERA at ≥$1,450, PropNex at $1,550–$1,650 psf ppr. Our implied range aligns with the Huttons low-end and sits below the consensus mid. The reason: 390 units at no-school-catchment Marina South doesn't warrant the aggressive launch PSF assumptions needed to support bids at $1,500+ psf ppr. If One Marina Gardens transacted data shows launch PSF materially above our $2,700–$2,750 assumption, the range shifts upward — that's the variable to watch. But from what today's comp set implies, we're comfortable below the consensus midpoint.
Orchard Boulevard — Cost Stack
Expected launch PSF: $3,300–$3,500 psf (strata, anchored to live URA data). D10 new sale comps: UpperHouse at Orchard Blvd averaged $3,350 psf across 234 transactions (URA data), 19 Nassim averaged $3,399 psf (64 txns), Grange 1866 averaged $3,182 psf (27 txns). A new 110-unit boutique launching in 2028–2029 would price at or above current UpperHouse levels. Revenue on GFA basis at 80% strata efficiency for boutique luxury: approximately $2,640–$2,800 psf of GFA.
Boutique premium of +12% applied to RLB construction benchmark, calibrated from GLS comp database for sub-200-unit projects. All-basement parking requirement (site condition) adds ~$20–$30 psf above this premium.
| Cost Component | Low (psf GFA) | High (psf GFA) | Source / Basis |
|---|---|---|---|
| Construction (boutique-adjusted) | $384 | $504 | RLB all-in ($343–$432) × 1.12 boutique premium + ~$20 psf basement parking. Stated calibration. |
| Professional fees | $13 | $20 | 3–4% of construction cost. Stated assumption. |
| Finance costs | $35 | $53 | 3.0–3.5% p.a. over 2.5–3 year build period on non-land stack. Stated assumption. |
| Marketing | $40 | $42 | 1.5% of GDV (~$2,640–$2,800 psf GFA-basis revenue). Stated assumption. |
| Non-land total | $472 | $619 | Sum of above components |
Roncasa implied bid — Orchard Boulevard:
At 15% margin (competitive): ($2,720 mid-GFA-revenue ÷ 1.15) − $546 non-land mid = $2,365 − $546 = $1,819 psf ppr
At 18% margin (cautious): ($2,720 ÷ 1.18) − $619 non-land high = $2,305 − $619 = $1,686 psf ppr
Roncasa implied range: $1,650–$1,850 psf ppr
Analyst consensus for reference: ERA at $1,650–$1,700, Huttons at $1,650–$1,750, PropNex at $1,950–$2,050 psf ppr. Roncasa's derived range lands inside ERA and Huttons — independently, from the cost side up. PropNex's estimate is notably more aggressive. At $1,950–$2,050 psf ppr, a developer would need to launch above $3,600 psf to maintain an 18% margin — a stretch assumption that goes well beyond where current D10 comps sit. That doesn't make it impossible for a 2029 launch, but it's a bet on the market moving considerably before launch day.
Buy Now vs Wait
For Marina South: the buy-now case sits with One Marina Gardens, which still has ~30% of its 937 units to move. Buyers entering today take a funded, under-construction project with demonstrated market acceptance — no bid risk, no construction timeline uncertainty. The new launch from this GLS site doesn't arrive until 2028–2029. That said, when it does, existing One Marina Gardens resale holders face a newer product competing for the same buyer pool. The no-school catchment is the persistent constraint: family buyers who want primary school priority won't choose this precinct regardless of pricing. The investor rental thesis — corporate demand from Marina Bay offices via TEL — has to carry more weight here than capital appreciation alone.
For Orchard Boulevard: the calculus is more compressed. This is a boutique CCR address with 110 units from a small site. UpperHouse at 82.1% absorbed demonstrates the buyer exists and is active right now. A new boutique launching in 2028–2029 at $3,300–$3,500 psf is primarily bought by high-net-worth owner-occupiers and ultra-long-hold investors — they're buying the address and the floor, not a 3-year yield spreadsheet. If you're the buyer who's been hovering on D10 and watching UpperHouse move, the new GLS release is not a reason to hold back on existing available units. It's actually the opposite signal: if a developer is willing to bid $1,650–$1,850 psf ppr for this next site, they believe the market carries prices higher still by 2028.
What Ron Is Watching
- If the Marina South bid lands above $1,500 psf ppr — developers are pricing in a launch PSF assumption materially higher than our $2,700–$2,750 model. Either One Marina Gardens is transacting above what current comps imply, or there is a commercial component premium not yet in the data. Watch the bid result as a real-time signal on where the Marina South ceiling is heading.
- If the Orchard Blvd bid lands at or above $1,900 psf ppr — PropNex's aggressive estimate is validated, and the D10 CCR ceiling has moved above current UpperHouse comps. Owners of D10 resale at $3,000–$3,200 psf may have their exit window extended meaningfully into 2029.
- If Marina South new launch opens at $2,900+ psf — the bid was a developer conviction call, not just a land grab. That reprices the One Marina Gardens resale floor upward and validates the entire precinct thesis ahead of schedule.
- If Orchard Blvd absorption in 2028–2029 is slower than UpperHouse's pace — CCR buyer demand is softening faster than the land bid implied. That's an early signal for broader D9/D10 repricing that would be felt in resale six to twelve months after launch data emerges.
Who This Actually Affects
| Who | What It Means | What to Do Now |
|---|---|---|
| One Marina Gardens buyer (existing) | A third GLS release validates the precinct — more residents, more commercial activity, more commuters through TEL. But your eventual resale competes with a newer product in 2028–2029. | If you're planning to sell, the cleaner window is 2026–2027 — before the new launch competes for the same buyer pool. Know your exit timing. |
| Marina South new launch buyer (prospective) | No school catchment. This is an investor or childless professional play. The rental thesis hangs on corporate demand from Marina Bay offices — not upgrader families. | Model the rental yield at $5,500–$6,500/mo for a 700 sqft unit. If that covers carrying costs at your entry price, the investment case works. If not, the no-school gap is a structural ceiling on buyer demand at exit. |
| CCR buyer who thinks D10 is out of reach | UpperHouse at Orchard Blvd is 82.1% sold — roughly 17.9% still available at $3,350 avg psf. The new GLS release won't launch for 2–3 years. The existing supply is now. | Pull available UpperHouse units and compare against your budget. $3,350 psf is an average — some stacks will be below $3,200, others above $3,600. The range matters more than the headline. |
| D10 resale owner watching their floor | Two data points running in the same direction: UpperHouse absorbing at 82.1%, new GLS released. New supply launching at $3,300–$3,500+ psf in 2028 sets the floor for your resale now. | Track the Orchard Blvd bid result on Oct 29. If it clears $1,850 psf ppr, the developer is betting the ceiling moves above current UpperHouse comps — and your resale floor lifts with it. |
| Investor comparing Marina South vs Orchard | These are fundamentally different assets. Marina South is yield-driven, corporate-tenant dependent, waterfront premium at OCR-adjacent pricing. Orchard is capital preservation, UHNW market, low yield but high floor. | Don't run them through the same model. Marina South needs a yield-first analysis. Orchard needs a 10-year total return model. Choose based on which risk profile fits your holding horizon — not which postcode sounds better. |
Ron's Read
Marina South is a story I've been watching build site by site. The third GLS release tells me the government is committed to this precinct for the long term — this is not a one-off. What I find more interesting is the implied bid math. At $1,270–$1,400 psf ppr, my numbers sit at the lower end of or below analyst consensus (Huttons $1,350–$1,450, ERA ≥$1,450, PropNex $1,550–$1,650). My conservatism is structural: 390 units at a no-school precinct with developer scale pressure doesn't justify aggressive land bids. I could be wrong — if One Marina Gardens' transaction data shows launch PSF materially above my $2,700–$2,750 assumption, the range shifts upward. But from what the cost data implies at current comps, I'd set my bid expectation between $1,300 and $1,450, not $1,550–$1,650.
Orchard Boulevard is more clear-cut. The UpperHouse absorption rate of 82.1% on this exact street is the single most important data point in this announcement. Developers know it. The previous award at $1,617 psf ppr in February 2024 sets a floor, and given what has happened to D10 new sale prices since then ($3,350 psf avg across 234 URA transactions), there's a solid case for a higher award this time. Our implied range of $1,650–$1,850 psf ppr lands exactly inside ERA and Huttons consensus — independently derived from the cost side up. PropNex at $1,950–$2,050 needs a launch PSF assumption that exceeds the current D10 ceiling. Possible in 2029. Not what the current data supports today. The honest takeaway: Orchard Blvd will see a competitive tender in the $1,650–$1,850 range; Marina South is the more uncertain call, and our cost model says the analyst consensus high-end requires launch assumptions that go well beyond what One Marina Gardens data currently implies. We will publish the full bid breakdown when results are announced — Marina South on October 15, Orchard Boulevard on October 29.
Tracking either of these sites — as a potential buyer, a resale owner in the affected precincts, or an investor building a case? I can pull the last 12 months of transacted PSF for comparable units in Marina Bay and D10, and map exactly where prices sit today versus where land cost implies they're heading.
📲 WhatsApp Ronnie directly | Book a consultation
Ready to talk numbers?
No pitch. Just an honest conversation about your unit.
