Some homes are bought; this one was built — by hand, by a family, on the crown of a small hill in Bukit Timah, the year before Singapore's first proper bus terminal opened. For more than seventy years, 436 Dunearn Road stayed in one family while the city rebuilt itself around it. In 2026 it changed hands for the first time, sold as land for S$55 million. This is the story of how it got there.

If you only know the address from a property headline, the numbers are striking enough: a freehold plot of about 24,190 sq ft in prime District 11, perched on high ground and screened from the road, that sold for roughly S$2,274 per square foot. But the more interesting figure is the one that never appears in a caveat — the four generations of the Ong family who lived here, and the bus company that paid for the land in the first place.

The house on the "dragon's head"

Built 1953 · Inspired by a home in China

The family acquired the hilltop site off Dunearn Road in the early 1950s and completed the house in 1953. At the time, the surrounding land was largely undeveloped — neighbouring accounts describe mangosteen plantations, a temple next door, and very little else. The private estates that now define Shelford Road and Watten Estate had not yet been laid out.

The matriarch of the family, Tan Hock Muay, had long dreamed of a home large enough for the whole extended clan, and the design was modelled on her marital home back in China. A feng shui master was consulted during construction. Sitting on its little rise, the plot was read as a "dragon's head" — an auspicious form — and the family came to credit that elevation with watching over them for four generations.

It was never meant to be just a private residence. The house was also built to receive guests from Singapore's Hockchia (Heng Hua) community, many of them prominent merchants and philanthropists — a working hub of hospitality as much as a home.

From rickshaws to mosquito buses

A migrant story, circa 1911

The land, and everything on it, traces back to a journey made around the time of the 1911 Chinese Revolution. Tan Hock Muay — born in 1885 in Fuqing, in China's Fujian province — and her husband Ong Chin Chuan left a hard life in southern China for Singapore, then a British colony that drew new immigrants through tight networks of kin and dialect. As Hockchia people, the Ongs found their footing among fellow migrants from Fuqing.

They started at the very bottom of the transport trade, renting out rickshaws. By family lore, the seed capital for their first motor buses came from pawning two gold bracelets — Tan's only valuables, given to her by a wealthy household she had once worked for as a domestic helper. From that stake grew a fleet of small seven-seater "mosquito buses," so nicknamed for the way they darted in and out of traffic to scoop up passengers.

The Green Bus Company

Registered 1941 · Merged 1971

The business was formalised in the mid-1930s as the Rochor Bus Company, serving rural districts the colonial tram and trolleybus network didn't reach. (Reports differ slightly on the exact founding year — some place it in 1934, others in 1935.) Ong Chin Chuan, his younger brothers and their partners rebranded it as The Green Bus Company, officially registered on 24 September 1941.

Green Bus became one of the earliest operators of cross-border public transport. On 1 May 1950 it launched a route to Johor Bahru and expanded with Vulcan omnibuses; that same year it opened a $100,000 garage and workshop at its King Albert Park depot — the site that is now the KAP Residences and KAP Mall development. At its peak the company ran a fleet of about 35 buses, threading from Queen Street out to Jurong, Lim Chu Kang and the former Princess Elizabeth Estate, today's Hillview.

The story ends the way most of Singapore's private bus stories do. In 1971 Green Bus was folded into the United Bus Company as part of a government-led consolidation of private operators; in 1973 the system was reorganised again into Singapore Bus Services. The buses disappeared into a larger machine — but the hilltop house, held under Ong Chin Chuan Holdings, stayed exactly where it was.

Four generations under one roof

Seven bedrooms, an air well, and a menagerie

Inside, the house ran to a generous living and dining area, a large kitchen, a yard and seven bedrooms split across two floors. A spiral staircase climbed beside an air well — once left open to pull light and air through the home, with rainwater channelled away beneath a gently sloped floor. In the early years there was no modern sewerage; an outdoor toilet was emptied nightly by a night-soil collector, long before the plumbing was modernised.

At its fullest, roughly twenty people lived here. Over the decades most relatives moved out to start households of their own, but one branch stayed on out of duty — the eldest son's family, responsible for caring for the grandmother in her final years. By the time the house came to market it held just a handful of residents and, famously, a small zoo's worth of companions: chickens, a parrot, a cockatoo and a dog, all roaming the garden.

Neighbours in high places

Backing onto a Far East dynasty

For a quiet family home, 436 Dunearn Road kept remarkable company. The rear of the property backs onto the garden of Ng's Mansion — the residence of the late Ng Teng Fong, founder of Far East Organization and one of Singapore's most consequential property tycoons. The two families weren't just neighbours; by the Ongs' account, the grandfathers were friends.

That corner of Bukit Timah has been quietly reshaping itself for decades. Far East began developing Watten Estate in 1969. The former Watten Estate Condominium nearby was sold en bloc to a UOL Group–Singapore Land joint venture for S$550.8 million in 2021 and has since re-emerged as the freehold project Watten House. The hilltop bungalow watched all of it happen from above, unchanged.

Why the family let go

Legacy versus land value

Selling a home like this is rarely a simple transaction. For the Ongs, the property was never only about its land value — it carried the memory of the ancestors who built it and the generations raised inside its walls. But practical reality eventually meets sentiment: an ageing house, a dwindling number of residents, and a piece of land that had become extraordinarily valuable. The family chose to part with it, and to let its next chapter be written by someone else.

The land sale, step by step

S$60m → S$55m → sold

The sale didn't happen in a single stroke — it moved through three clear stages over roughly eighteen months:

So the much-quoted gap between "S$60 million" and "S$55 million" isn't a contradiction — it's simply a price that started high, was trimmed at relaunch, and ultimately cleared at the lower figure.

What will rise on the hill

A blank slate in a mixed-landed zone

Under the Urban Redevelopment Authority's latest Master Plan, 436 Dunearn Road sits within a three-storey mixed-landed housing envelope. That zoning is what makes the site so attractive to a developer: the regular shape and elevated ground lend themselves to subdivision. Across the two marketing campaigns, the floated possibilities ranged from a small cluster of detached and semi-detached houses to a denser scheme of terraces and semi-detached homes — anywhere up to roughly ten units — every option ultimately gated by planning approval. Whatever is finally built, the original 1953 house is unlikely to survive it.

Why this corner of Bukit Timah commands a premium

Freehold scarcity, schools, and the MRT

Strip away the heritage and the fundamentals still read well. This is freehold land in District 11 — increasingly rare at this scale — on elevated ground between Dunearn Road and Shelford Road. It sits roughly a five-minute walk (within ~500m) of Tan Kah Kee MRT on the Downtown Line, with the Singapore Botanic Gardens, Orchard and the CBD a short ride away, and Coronation Shopping Plaza close by.

Then there's the schooling catchment that quietly underwrites so much of Bukit Timah's value: within about a kilometre of Nanyang Primary and Raffles Girls' Primary, and close to Hwa Chong Institution, Nanyang Girls' High and National Junior College. For context on pricing, recent District 11 landed deals — semi-detached and terrace homes around Kheam Hock Road — have transacted near S$4,200 psf, and a 1992-built detached house on Shelford Road changed hands for S$18.68 million (about S$1,860 psf).

And that, in the end, is the quiet irony of 436 Dunearn Road. The family that built it once moved Singaporeans around a city that barely existed yet. Eight decades on, the value isn't in the buses or even the house — it's in the patch of high ground they had the foresight to buy, and the freehold title they never let go of, until now.