Marine Mansion
Overview & Key Facts
Marine Mansion is a 12-unit boutique apartment block at 28A Sea Avenue in District 15, sitting in the heart of the Marine Parade enclave on Singapore’s east coast. The development is held on a freehold title — a defining structural advantage in a corridor where the headline new-launch cohort (Tembusu Grand, Grand Dunman, Emerald of Katong) is split between freehold and 99-year leasehold product, and where freehold inventory in the immediate Marine Parade catchment trades at a persistent premium.
The transaction profile is investor-led and unusual in scale. Zero resale caveats are on record, but 64 rental transactions average S$3,547 per month with a median of S$3,600 — an exceptionally deep rental dataset for a 12-unit block (more than 5x rental turnover per unit). This signals that Marine Mansion functions overwhelmingly as a leased income asset rather than an owner-occupier turnover building, with a tight, consistent rental band that points to a stable tenant equilibrium. Walkability is strong at 75/100, anchored by the standout asset that defines this whole review: Marine Parade MRT (Thomson-East Coast Line) at just 310 metres — a true doorstep station, with Marine Terrace TEL at 730 metres adding a second TEL station within walking distance.
The investment thesis here is unambiguous and easy to articulate: freehold tenure plus a doorstep TEL station plus 64 rental transactions of evidence on the income side. The TEL re-rating story — the Thomson-East Coast Line opened Marine Parade and Marine Terrace stations in mid-2024 (Stage 4) and Bayshore/East Coast in 2026 (Stage 5), bringing the East Coast residential corridor onto the MRT map for the first time — is the central force shaping this whole catchment over the next decade.
Location & Connectivity
Sea Avenue is a quiet residential side-street running off Marine Parade Road, deep inside the established Marine Parade enclave bounded by East Coast Road, Still Road, and the East Coast Park reclamation belt. At 28A Sea Avenue, Marine Mansion sits less than a five-minute walk from Marine Parade MRT — the standout commute and capital-appreciation asset. Marine Parade MRT (Thomson-East Coast Line) at 310 metres is genuinely a doorstep station, with Marine Terrace TEL at 730 metres providing a second walkable station, and Tanjong Katong TEL at 1.47 km adding a third within an extended walking radius. This is one of the strongest TEL-walkability profiles available on the east coast at any price point.
The school cluster is dense and credible across both primary and secondary tiers. CHIJ (Katong) Primary at 680 metres anchors the MOE Phase 2A/2C catchment, with Canadian International School (Tanjong Katong campus) at 750 metres, Tanjong Katong Girls’ School at 810 metres, Broadrick Secondary at 850 metres, EtonHouse International at 850 metres, Tao Nan School at 990 metres, Telok Kurau Primary at 1.10 km, and Tanjong Katong Primary at 1.11 km. For Phase 2A/2C balloting families, this is one of the strongest catchments in District 15.
Day-to-day retail and lifestyle is exceptional. Parkway Parade at roughly 600 metres is the dominant mall anchor — FairPrice Finest, Cold Storage, full F&B, banking, medical, and cinema under one roof. 112 Katong on East Coast Road, Katong Square, the heritage Joo Chiat shophouse F&B belt, and Roxy Square are all within a 10–15 minute walk. East Coast Park — the largest contiguous green-and-beach corridor on the island — is reachable on foot via the Marine Parade pedestrian underpass and forms part of the daily lifestyle for residents who cycle, run, or eat at the East Coast Lagoon Food Village. The neighbourhood F&B density (Katong laksa, peranakan cuisine, the East Coast hawker scene) is among the most distinctive in Singapore.
URA Master Plan activity in the broader corridor is significant. The Greater Southern Waterfront redevelopment is reshaping the city-fringe coastline westward, and the Bayshore precinct (TEL Stage 5) due to open will add another major transit-oriented residential node directly east. The Marine Parade enclave itself is largely built-out and protected by its mid-rise residential character, which preserves the streetscape quality residents pay a premium for.
Schools & Education
2 primary schools within the 1 km Priority Phase balloting radius.
| School | Type | Distance |
|---|---|---|
| CHIJ (Katong) Primary | primary | Within 1 km |
| Canadian International School (Tanjong Katong) | international | Within 1 km |
| Tanjong Katong Girls' School | secondary | Within 1 km |
| Broadrick Secondary School | secondary | Within 1 km |
| EtonHouse International School (Broadrick) | international | Within 1 km |
| Tao Nan School | primary | Within 1 km |
| Telok Kurau Primary School | primary | ~1.1 km |
| Tanjong Katong Primary School | primary | ~1.1 km |
Facilities
At 12 units across a low-rise block, Marine Mansion is a true micro-boutique — the maintenance-fund economics simply do not support a swimming pool, gymnasium, or formal clubhouse. The development provides covered car parking, a secured gate, 24-hour security access, and shared external landscaping. Buyers should not expect anything beyond that. Maintenance contributions, by extension, are materially lower than at facility-heavy condominiums — typically S$200–350 per month for a 12-unit freehold block versus S$500–850+ at full-facility developments of comparable vintage in the same Marine Parade catchment.
“We picked a Marine Mansion unit because we didn’t want to subsidise a pool we’d use twice a year. Marine Parade MRT is a four-minute walk, Parkway Parade is across the road, East Coast Park is ten minutes, and the maintenance fee is half what our friends in the new launches pay. The facilities are the neighbourhood, not the building.”
— Tenant perspective on Marine Mansion lifestyle via Singapore Expats community discussion
For households that treat Marine Parade’s surrounding hawker, retail, beach, and transit infrastructure as their amenity layer, the no-facilities profile is a genuine cost saving rather than a sacrifice — and arguably the right architectural answer for this site, given that any pool or gym in a 12-unit block would be undersized and underused. For families with young children needing on-site recreation, or for buyers expecting resort-style amenity provision, this is the wrong building. The substitute play and exercise venues — East Coast Park, the ActiveSG-managed facilities at Marine Parade Community Club, and the Parkway Parade fitness/F&B mix — are all reachable on foot and far exceed in scale anything an in-compound facility could offer.
Neighbourhood Comparison
Marine Mansion sits in an unusually well-defined competitive set in District 15. On the freehold side, Amber Park (freehold, 592 units, full facilities, ~5 min walk to Tanjong Katong TEL) and The Continuum (freehold, 816 units, full facilities, Thiam Siew Avenue) are the headline freehold mega-developments in the corridor — both trade at materially higher PSF than Marine Mansion would, with the premium reflecting facilities, transaction depth, and brand-new product. On the leasehold side, Grand Dunman (99yr, 1,008 units, Dakota MRT) and Emerald of Katong (99yr, 846 units, Tanjong Katong TEL) and Tembusu Grand (99yr, 638 units, Tanjong Katong TEL) define the new-launch leasehold cohort.
The trade-off framing for buyers: if a buyer wants pool, gym, multiple lobbies, full landscaping, and the price-discovery comfort of hundreds of comparable transactions, the mega-development cohort is the right answer — and the PSF discount Marine Mansion theoretically offers is being paid for in facilities and transaction depth. If a buyer wants freehold tenure plus a 310-metre walk to Marine Parade TEL plus a 12-household block plus the lowest possible maintenance fees, Marine Mansion is genuinely difficult to substitute — the freehold-boutique-doorstep-MRT combination is rare in the immediate Marine Parade catchment, where the freehold inventory is dominated by either ageing walk-up apartments or the new Amber Park / Continuum mega-development cohort. The TEL re-rating thesis applies to all comparables in the corridor, but Marine Mansion captures it at a freehold-boutique price point rather than a freehold-mega price point.
| Development | Tenure | TOP | Units | ~Avg PSF |
|---|---|---|---|---|
| MARINE MANSION | — | 12 | — | |
| GRAND DUNMAN | 99 yrs lease commencing from 2022 | 2023 | 1,008 | $2,537 |
| EMERALD OF KATONG | 99 yrs lease commencing from 2023 | 2024 | 846 | $2,640 |
| THE CONTINUUM | Freehold | 2023 | 816 | $2,790 |
| TEMBUSU GRAND | 99 yrs lease commencing from 2022 | 2023 | 638 | $2,462 |
| AMBER PARK | Freehold | 2021 | 592 | $2,540 |
ShiokNest Scores
Our proprietary scoring system evaluates MARINE MANSION across multiple dimensions.
What Residents Say
“Marine Parade MRT in four minutes, Orchard in fifteen, Marina Bay in twenty. Before TEL opened we’d never have considered Marine Parade for a CBD commute — now it’s genuinely competitive with River Valley or Tiong Bahru on travel time, and the lifestyle is in a different league. We’ve been tenants here three years and the building runs quietly, twelve units, you know everyone.”
— Tenant feedback on Marine Mansion TEL commute via 99.co listings discussion
“Freehold, doorstep MRT, Parkway Parade across the road, CHIJ Katong and Tao Nan in the catchment, East Coast Park ten minutes on foot. The list of things that go wrong here is short. The list that goes right is very long. The only honest negative is that there are no facilities and there are only twelve units, so when something does come up for sale it’s gone fast.”
— Owner perspective on the Marine Parade catchment via Stacked Homes reader discussion
“We balloted Phase 2A at CHIJ Katong successfully from the Sea Avenue catchment and that decision shaped a decade of our lives. The school cluster here is genuinely top-tier — Tao Nan, Tanjong Katong Primary, Haig Girls all within reach. For families willing to live in a small block without facilities, the school-plus-MRT-plus-Parkway combination is hard to beat anywhere in District 15.”
— Family resident on school catchment outcome via EdgeProp community comments
Across community discussion, the consistent theme is that Marine Mansion residents and tenants treat the surrounding catchment — not the building itself — as the product. The 12-unit boutique scale and absence of facilities are accepted (and in some cases preferred) trade-offs for freehold tenure, doorstep TEL access, and one of the strongest neighbourhood retail-and-lifestyle stacks in Singapore. The 64-transaction rental dataset shows the investor segment has reached a stable, well-priced equilibrium here — the property is, in market terms, doing exactly what it is designed to do.
Strengths & Weaknesses
- Freehold tenure — structural advantage vs 99yr Grand Dunman / Emerald of Katong / Tembusu Grand cohort
- Marine Parade MRT (Thomson-East Coast Line) at 310m — true doorstep station, 4–5 minute walk
- Multi-line TEL walkability: Marine Parade (310m), Marine Terrace (730m), Tanjong Katong (1.47km)
- TEL re-rating story — corridor moved from bus-dependent to MRT-served in 2024, structural appreciation tailwind
- Walkability score 75/100 — Parkway Parade, 112 Katong, East Coast Park all within 5–15 min walk
- Top-tier school cluster: CHIJ Katong Pri (680m), CIS-TK (750m), TKGS (810m), Tao Nan (990m), TKPS (1.11km)
- Exceptionally deep rental dataset — 64 transactions on 12 units, average S$3,547 / median S$3,600, tight band
- 5x+ rental turnover per unit signals a stable investor-tenant equilibrium
- Boutique scale (12 units) — low-density, neighbour familiarity, materially lower maintenance fees
- Marine Parade enclave streetscape — protected mid-rise residential character, established F&B and retail
- Zero resale caveats on record — no public price-discovery data; underwriting relies entirely on asking prices and external valuation
- No facilities — no pool, gym, or clubhouse; covered car parking, gate, and 24-hour security only
- 12-unit micro-boutique — extremely thin transaction turnover, very limited unit choice when buying
- En-bloc upside near-zero — freehold tenure removes lease-decay pressure, plot is small, score 39/100
- Mid-2000s vintage — units may benefit from S$50,000–100,000 refresh to maximise resale or premium-rental positioning
- Boutique scale offers no insulation from immediate streetscape — no large gated buffer or in-compound landscaping
- No on-site family amenity — households with young children depend on East Coast Park and ActiveSG facilities
- Asking prices likely sit at a freehold premium that not all buyers will accept without observed resale comparables
Verdict
Marine Mansion is a high-conviction investor product with a tightly aligned thesis: a freehold 12-unit boutique with a 310-metre walk to Marine Parade MRT (Thomson-East Coast Line), a deep and consistent rental dataset (64 transactions clustered tightly around S$3,600/month), and direct exposure to the TEL re-rating story that is reshaping the entire Marine Parade and East Coast residential corridor. Walkability of 75/100 understates the practical lifestyle quality — Parkway Parade, 112 Katong, East Coast Park, the Joo Chiat heritage F&B belt, and a top-tier school cluster are all within a 5–15 minute walk.
The case against is structural and short. Zero resale caveats means the price-discovery layer is missing — buyers must triangulate from listings and external valuation rather than from observed comparables. The 12-unit boutique scale means transaction inventory is genuinely thin, and the no-facilities profile filters out buyers who want resort-style amenity. Mid-2000s vintage finishes will need a refresh budget for any premium rental or resale repositioning. None of these are deal-breakers for the target buyer; they are just the trade-offs that come with a freehold doorstep-MRT boutique at a lower price point than the freehold mega-development cohort (Amber Park, The Continuum) commands.
The ShiokNest composite score of 60/100 reflects the balance of strengths and structural caveats: outstanding MRT access (9.5/10 — doorstep TEL), strong neighbourhood (9.0/10), strong tenure (7.5/10 — freehold), and solid value (7.5/10) lift the score, while a no-facilities profile (5.0/10) and the absence of resale comparables temper it. For investor-buyers focused on freehold tenure, TEL leverage, and a proven rental narrative, Marine Mansion is one of the more interesting boutique stories in District 15 today.