Good Class Bungalow
Cost Estimation

Good Class Bungalows (GCBs) are Singapore's most exclusive residential category. Located in 39 designated GCB Areas — Bukit Timah, Tanglin, Holland, Coronation, Belmont, Cluny, Nassim, and others — GCBs sit on minimum 1,400 sqm plots and are subject to URA's strict planning controls. They are also among the most complex and cost-sensitive residential projects Yuhuang Estimating prices.

Why GCB projects need a specialist Quantity Surveyor

GCB owners are sophisticated. They commission award-winning architects. They specify the finest materials — high-grade marble, custom joinery, imported sanitaryware, basement swimming pools, lift cores, smart-home systems, landscape gardens. A GCB build can carry construction costs of S$3 million to over S$10 million. The cost gap between a well-priced GCB and a poorly-priced one is often S$500,000 to S$1 million.

A specialist QS who has priced GCBs before knows:

• The specification creep that pushes a 2-storey GCB from S$1,200/sqft to S$1,800/sqft
• The basement cost premium and waterproofing detail that goes wrong if not specified
• The custom joinery / millwork rates that vary by 40% across suppliers
• The landscape and pool-deck cost that owners systematically under-budget
• The URA envelope-control rules and their cost implications for buildable area

Yuhuang Estimating GCB experience

Our director has priced GCB projects across the major GCB Areas:

• Gallop Park Road (Tanglin) — 2-storey detached with basement, attic, swimming pool
• Linden Drive (Bukit Timah) — 2-storey envelope-control detached with basement and pool
• Coronation Road (Bukit Timah) — 3-storey envelope-control detached with attic and pool
• Belmont Road (Bukit Timah) — 2-storey envelope-control detached with basement and pool
• Fifth Avenue (Bukit Timah) — 2-storey envelope-control detached with basement, attic, pool
• Jalan Jelita (Bukit Timah) — 2-storey envelope-control detached with attic and pool
• Wilkinson Road (Marine Parade) — 2-storey envelope-control detached with basement, attic, pool
• Oei Tiong Ham Park (Bukit Timah) — reconstruction with existing basement and pool
• Chestnut Drive — 2-storey GCB reconstruction with attic
• Elm Avenue (Bukit Timah) — semi-detached with basement and pool, twice over (different lots)

What a GCB cost plan looks like

A Yuhuang Estimating GCB cost plan covers, at minimum:

• Substructure — basement (if any), piling/footings, waterproofing, drainage
• Superstructure — RC frame, structural steel, roof system
• Envelope — façade treatment, glazing, screens (envelope-control compliant)
• Internal finishes — premium-grade marble/timber flooring, custom joinery, ceilings, painting
• Wet areas — bathrooms (typically 5–8), kitchens, wet kitchens, scullery
• Services — air-conditioning (VRV), ELV, smart-home, lifts (often included), electrical, plumbing
• Pool & landscape — swimming pool, deck, soft and hard landscape, irrigation
• Special features — wine cellar, gym, home theatre, lap pool, water features
• External works — driveway, gate, fence, boundary wall, sub-utility
• Provisional sums — for client-specified items (art, custom furniture, integrated tech)

GCB tender approach

GCB main-contractor tenders typically go to a shortlist of 4–6 specialist residential contractors. We prepare the tender package, manage the tender process, evaluate returned bids, and recommend the award. Owner sees one consolidated report. Decision is made with full information.

Engage Yuhuang Estimating for your GCB

If you are building, reconstructing or renovating a GCB in Singapore, contact Yuhuang Estimating. Send us the architectural drawings and we'll come back within 24 hours with scope, fee and timeline.

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For House Owners · Quantity Surveying · Project portfolio