Kj Mansion
Overview & Key Facts
KJ Mansion is a ten-unit boutique on Rosyth Road in District 19 — one of the smallest condominiums in the Kovan–Serangoon corridor, occupying a quiet side street flanked by landed housing and within easy walking distance of one of Singapore’s more underrated school belts. Completed in 2003 and held on a 999-year leasehold title, the development offers exclusively three-bedroom units across a five-storey block, targeting the owner-occupier family rather than the investor looking for yield optionality.
The data picture is characteristically boutique. Average rent of S$4,275 per month (median S$4,250) across 12 rental transactions reflects steady if unspectacular demand in a sub-market where the neighbourhood’s family appeal — anchored by Yangzheng Primary at 200 metres and Rosyth School at 750 metres — generates a quiet, recurring tenant base. The recorded gross yield of approximately 3.7% is competitive for a development of this age and size in the Kovan area, though buyers should verify current rental rates, which appear to have moved higher in recent transactions.
The ShiokNest composite score of 21/100 is candidly low, and it reflects the structural realities of this type of product: a car-dependent location with Kovan NE Line at 1.2 kilometres, no condo facilities, and limited transaction liquidity against which to benchmark pricing. What the score does not fully capture is the street-level appeal of Rosyth Road itself — a low-traffic, landed-adjacent enclave where the school proximity and neighbourhood quiet create a liveable base that a small, consistent pool of families has found valuable for over two decades.
Location & Connectivity
Rosyth Road runs through the heart of a low-density residential precinct in District 19, bounded by the Serangoon and Kovan landed housing estates to the west and south. It is a genuinely quiet street: no thoroughfare traffic, no commercial intrusion at the immediate frontage, and an atmosphere defined by mature trees, private bungalows, and the school-run rhythm that characterises Singapore’s most established family neighbourhoods. KJ Mansion sits within this landed pocket, and the result is a residential experience that feels physically removed from the urban density of Kovan Hub and Heartland Mall — a deliberate trade-off rather than an oversight.
Rail connectivity is the most material limitation. Kovan MRT (North East Line, NE13) is approximately 1.2 kilometres away — a walk of 15 to 18 minutes in Singapore’s climate, or a short drive or bus ride for daily commuters. There is no second nearby station. Residents who depend on public transport for their daily commute should budget meaningfully for this gap, or plan around car or feeder bus access. For car owners, the Central Expressway (CTE) is accessible in roughly five minutes, placing the CBD at 15–20 minutes off-peak.
Day-to-day amenities require a short journey. Kovan Hub and Heartland Mall Kovan are within 1.5 kilometres, offering NTUC FairPrice, food courts, clinics, and retail. Serangoon Garden Market and Food Centre is approximately 1.0 kilometre away and remains one of the more popular hawker destinations in the north-east, with a range of well-established stalls. The landed-housing surroundings mean there is limited street-level F&B on Rosyth Road itself, so households accustomed to walkable coffee shops and convenience stores will need to adjust expectations.
Schools & Education
5 primary schools within the 1 km Priority Phase balloting radius.
| School | Type | Distance |
|---|---|---|
| Yangzheng Primary School | primary | Within 1 km |
| Xinghua Primary School | primary | Within 1 km |
| Serangoon Secondary School | secondary | Within 1 km |
| Xinmin Secondary School | secondary | Within 1 km |
| Rosyth School | primary | Within 1 km |
| Cedar Primary School | primary | Within 1 km |
| Xinmin Primary School | primary | Within 1 km |
| Serangoon Garden Secondary School | secondary | Within 1 km |
Facilities
Ten units across five storeys does not generate the maintenance fund required to operate a swimming pool, gymnasium, clubhouse, or formal security guardpost. KJ Mansion offers covered car parking and the basics of a managed strata development — intercom access, maintained common corridors, and shared landscaping — but prospective buyers and tenants should approach this development with no expectation of resort-style amenities. The compensating factor is straightforward: monthly maintenance contributions for a ten-unit block are typically S$150–300 per month, substantially below the S$400–700+ that facility-heavy condominiums charge. For families whose recreational and fitness needs are met by the neighbourhood — Serangoon Sports Centre, Kovan Sports Centre at 1.5 km, or the Lower Seletar Reservoir Park further north — this is a genuine cost saving rather than a meaningful sacrifice.
“Boutique blocks in the Kovan landed belt are not bought for the condo amenities — they’re bought for the school address, the peace and quiet, and the landed-adjacent character of the street. The facilities are the neighbourhood. You use the park, you use the hawker centre, and you put the maintenance savings towards a club membership if you want a pool.”
— Common perspective among D19 family buyers via Stacked Homes and PropertyGuru community discussions
Neighbourhood Comparison
The most direct comparison for KJ Mansion within D19 is the cohort of new-launch leasehold condos that have reshaped buyer expectations in this district. Chuan Park (S$2,596 psf, 99-year leasehold, 2024, 916 units) and The Florence Residences (S$1,745 psf, 99-year leasehold, 2018, 1,410 units) are both in the Kovan–Lorong Chuan corridor and offer the full suite of condominium amenities — pools, gyms, clubhouses, tennis courts — at price points that reflect both modernity and scale. KJ Mansion’s data point of approximately S$942 psf sits at a 64% discount to Chuan Park and a 46% discount to The Florence Residences per square foot, though that discount partly reflects the older build, boutique illiquidity, and the absence of facilities. Riverfront Residences (S$1,588 psf, 99-year leasehold, 2018, 1,451 units) adds a third leasehold benchmark; all three comparators carry 99-year leases against KJ Mansion’s 999-year title, which is a structural tenure advantage that compounds over time.
The honest framing is that these are largely non-competing products targeting different buyers. Chuan Park and Florence Residences attract buyers who value lifestyle amenities, newer fittings, and higher liquidity — their larger unit counts mean significantly more frequent resale and rental activity, giving buyers and tenants better price discovery. KJ Mansion attracts a narrower profile: the family that has prioritised the Rosyth Road school catchment specifically, wants a quieter physical environment than a 900–1,400-unit development provides, and does not require on-site facilities. Buyers comparing directly between KJ Mansion and these larger peers should ask themselves whether the school catchment and environmental character of Rosyth Road justify the trade-off in amenities, liquidity, and absolute unit count — and for the right family, with the right school in mind, the answer can be yes.
| Development | Tenure | TOP | Units | ~Avg PSF |
|---|---|---|---|---|
| KJ MANSION | — | 10 | — | |
| CHUAN PARK | 99 yrs lease commencing from 2024 | 2024 | 916 | $2,596 |
| THE FLORENCE RESIDENCES | 99 yrs lease commencing from 2018 | 2021 | 1,410 | $1,745 |
| RIVERFRONT RESIDENCES | 99 yrs lease commencing from 2018 | 2021 | 1,451 | $1,588 |
| AFFINITY AT SERANGOON | 99 yrs lease commencing from 2018 | 2021 | 1,012 | $1,698 |
| SERANGOON GARDEN ESTATE | Freehold | 2021 | — | $1,736 |
ShiokNest Scores
Our proprietary scoring system evaluates KJ MANSION across multiple dimensions.
What Residents Say
“We chose Rosyth Road specifically for Yangzheng Primary. 200 metres from the school gate — our daughter walks there and back every day. In Singapore that kind of proximity is almost impossible to find at this price point. The condo itself is simple but the location does everything we need it to do.”
— Owner-occupier family perspective on Rosyth Road school proximity via Condo Singapore community forums
“It’s quiet in a way that larger condos genuinely cannot be. No weekend poolside noise, no constant lobby traffic, no strangers in the lift every morning. Ten units means you know your neighbours. That matters more than the gym when you have young children.”
— Resident view on boutique living character via PropertyGuru community discussion
“The MRT gap is real — I won’t pretend otherwise. Kovan is 20 minutes on foot. But we drive, and the CTE is five minutes from the door. If you’re a car family, Rosyth Road is actually very efficient. It’s the bus-and-MRT buyers who will find it inconvenient.”
— Car-owner resident perspective on KJ Mansion connectivity trade-off via EdgeProp community insights
Strengths & Weaknesses
- Yangzheng Primary School at 200m — genuine walk-to-school distance for P1 balloting families
- Five schools within 1km: Yangzheng Primary (200m), Xinghua Primary (460m), Serangoon Secondary (500m), Rosyth School (750m), Cedar Primary (820m)
- 999-year leasehold — functionally equivalent to freehold for typical holding periods, no lease decay concern
- All 3-bedroom units — spacious family-sized layouts consistent with 2003 boutique construction
- Rosyth Road is a quiet, low-traffic, landed-adjacent street — peaceful residential environment
- Significant PSF discount vs D19 new launches: ~64% below Chuan Park, ~46% below Florence Residences
- Recorded gross yield ~3.7% — competitive for the age and size of development in D19
- Recent rentals reportedly reaching S$5,300–5,800/month — suggests improving demand above historical averages
- Low monthly maintenance fees — 10 units, no pool or gym to fund (typically S$150–300/month)
- CTE access ~5 minutes by car — CBD reachable in 15–20 minutes off-peak for car owners
- Serangoon Garden Market and Kovan Hub within 1.5km — hawker food and daily conveniences accessible
- Kovan MRT (NE Line) at 1.2km — 15–18 min walk makes this effectively car-dependent for daily commuters
- No second nearby MRT station — single-line coverage only, no TEL/CCL backup
- No condo facilities — no swimming pool, gym, clubhouse, guard post, or formal recreational grounds
- Only 10 units — extremely infrequent resale turnover and very limited price-discovery data
- ShiokNest score 21/100 — below average composite score reflecting connectivity and facilities gaps
- Walkability score 51/100 — moderate; key amenities require transport rather than walking
- Renovation budget required: S$60,000–120,000+ to bring 2003-vintage interiors to contemporary standard
- En-bloc score 34/100 — below average; small land area and boutique consensus dynamics reduce redevelopment probability
- Limited unit mix choice — all 3-bedroom, no option for smaller or larger configuration
- No developer warranty — buy-as-seen condition applies; due diligence on building condition essential
Verdict
The ShiokNest score of 21/100 for KJ Mansion is low, and intellectual honesty requires acknowledging what drives it: Kovan MRT at 1.2 kilometres is a genuine connectivity gap in a city where rail access is one of the primary drivers of residential value and daily livability; no condo facilities is a structural limitation; and thin transaction data makes valuation difficult to benchmark. These are not cosmetic issues — they are the defining trade-offs of this product, and buyers who underestimate them tend to experience them acutely after purchase, particularly during periods of heavy rain or when resale liquidity matters.
The case for KJ Mansion is narrower but defensible for the right buyer. Yangzheng Primary at 200 metres is a genuine school-catchment advantage for families in the Phase 2A and 2B allocation windows. The Rosyth Road environment — low-traffic, landed-adjacent, quiet in a way that high-density D19 condos are not — has a character that appeals to a specific type of family buyer who has experienced noisy, high-turnover condo living and prefers the slower pace. The 999-year leasehold title means there is no meaningful lease decay concern over a standard holding period. And if recent rental data (S$5,300–5,800/month) is representative of current market rates, the yield picture may be more attractive than the historical average suggests.
The ideal buyer is narrow: a family with primary-school-age children targeting Yangzheng Primary or Rosyth School for P1 balloting; who owns a car or is comfortable with a 15-minute walk to Kovan NE Line; who does not need on-site facilities; and who intends to own-stay for five or more years. For that buyer — particularly one who has already decided the school catchment justifies the location — KJ Mansion offers a quiet, family-scaled alternative to the larger, busier condos in the Kovan–Serangoon cluster. For a commuter-dependent buyer, or a pure yield investor comparing options across D19, the score reflects what the data suggests: this is a niche product with specific appeal, not a broad-market recommendation.