Why MCST Approval Matters for Condo Renovations

When you own a strata-titled condo unit in Singapore, the Management Corporation Strata Title (MCST) governs the common property — lifts, corridors, lobbies, façades, structural elements, and anything outside your unit's lot boundary. Its authority derives from the Building Maintenance and Strata Management Act (BMSMA), and its detailed house rules are recorded in the development's by-laws.

Even works entirely within your unit can affect common property (dust in corridors, hacking vibrations in shared slabs, debris in lift lobbies) and potentially breach strata by-laws. The MCST therefore requires advance notification and, for most significant works, a formal renovation application with written approval before your contractors set foot on site.

Step 1 — Contact the Managing Agent Early (Before You Sign Anything)

Before you finalise your floor plan, engage contractors, or order materials, call or email the managing agent (MA). Ask them to send you:

• The renovation application form and any required attachments
• The approved contractors list (some condos restrict which contractors may work in the building)
• The development's permitted renovation hours
• The renovation deposit amount and how to pay it
• Insurance requirements (public liability, typically)
• Lift and corridor protection requirements (moving blankets, hoarding, floor protection)
• Specific by-law restrictions — for example, on hacking, wet works, or changes to the façade or windows

This information shapes your budget and timeline. Discovering that your preferred tiling contractor isn't on the approved list after you've paid a deposit is an expensive surprise. Early contact — ideally four to six weeks before your intended start date — gives you enough time to respond to any requests for additional documents.

Step 2 — Submit the Renovation Application

The renovation application is your formal written request to the MCST to carry out works. Typical contents of the application package include:

• Scope of works description — what you plan to do room by room (hacking, carpentry, new flooring, plumbing, electrical, painting, etc.)
• Proposed start and end dates — the MCST may need to schedule the lift-protection team or the loading bay
• Contractor details — name, company registration, and in some cases their insurance certificate
• Floor plan or drawings — for works involving layout changes or wet areas, some MCSTs ask for a simple plan showing what changes
• Renovation deposit — paid up front; refunded after inspection confirms no damage to common property

Processing time varies by development — some MCSTs turn approvals around in a few days; others hold a council meeting monthly and you must wait for the next session. Ask at the start so you can plan your contractor's schedule accordingly.

Permitted Renovation Hours — Confirm Before You Sign the Contractor

Every condo development sets its own permitted working hours, and these vary considerably. Quiet hours, Sundays, and public holidays are typically off-limits for noisy work such as hacking, drilling, and grinding. However the exact hours are set by each MCST — do not assume they match another development or the general Building Control guidelines.

Share the confirmed hours with your interior designer or contractor in writing when you agree the timeline. A contractor who quotes a timeline assuming six-day working weeks may be setting you up for delays if the MCST only permits five.

The Renovation Deposit

Most condos require a renovation deposit paid by the unit owner before works begin. This deposit is held by the MCST and is refunded — fully or partially — after a post-renovation inspection confirms that common property (lifts, lobby floors, corridor walls, void-deck areas) has not been damaged by your contractors.

The deposit amount, conditions for deduction, and timeline for refund all vary by development. Check your MCST's by-laws or ask the managing agent. Common reasons for deductions include lift-door scratches, corridor-floor stains, and debris left in common areas.

Contractor and Insurance Requirements

Many MCST by-laws restrict renovation to contractors who meet certain requirements. Before you commit to any firm, ask the managing agent:

• Is there an approved contractor list? Some MCSTs maintain one; others just ask for valid company registration and insurance.
• What insurance is required? Public liability insurance covering at least S$1 million is commonly required (the exact figure varies — verify with your MCST).
• Does the contractor need to register with the MCST before starting? Some developments require contractors to sign in and collect a temporary access pass each day.

If your preferred contractor cannot meet the insurance or registration requirement, you will need to find an alternative or ask the MCST whether an exception applies. Discovering this after work has started is disruptive.

Works That Typically Need Extra Approval or Are Prohibited

Even within your own unit, certain works affect shared structure or common property and require additional MCST — and sometimes Building and Construction Authority (BCA) — approval:

For guidance on which walls can and cannot be hacked in a strata unit, see our guide on hacking and partition walls.

Protecting Common Property During Works

Your MCST will specify how contractors must protect common areas. Even if the rules are not spelled out, it is good practice — and often contractually your responsibility — to ensure:

• Lift protection: padded blankets on all lift walls and floor panels; remove before end of each day
• Corridor protection: cardboard or protective film on corridor floors from your unit door to the lift landing
• Waste management: debris bagged and removed by the contractor; no leaving waste bags in common corridors overnight
• Dust control: temporary hoarding or sheeting at your unit entrance to contain dust
• Loading bay coordination: pre-book the loading bay/service lift for delivery and waste removal dates

Failure to protect common areas is the most common reason renovation deposits are partially forfeited. Make this a line item in your contractor's scope of works.

MCST Approval Checklist Before You Start

• Obtained and read the MCST's renovation rules / by-laws
• Submitted renovation application form with scope of works
• Received written approval from MCST / managing agent
• Paid the renovation deposit and kept the receipt
• Confirmed permitted working hours in writing
• Confirmed contractor meets insurance and registration requirements
• Booked the loading bay / service lift for key delivery dates
• Pre-renovation inspection completed (if required by MCST)
• Time-stamped video/photos of corridor and lift taken
• Contractor briefed on MCST rules, access times, and common-area protection

Plan Your Space Before Submitting

A well-drawn floor plan makes your renovation application clearer and reduces back-and-forth with the managing agent. If you're planning layout changes — moving a wet area, opening a wall, or adding a partition — having an accurate scaled plan helps the MCST assess whether your works affect common property or structure.

StoreySG lets you trace your actual condo floor plan at millimetre scale directly in the browser, then edit it by describing changes in natural language ("add a partition between the study and living room"). You can export a CAD-ready DXF or a PNG to include with your application — no specialist software or powerful machine required.

For comparison with HDB renovation requirements — which follow a different permit pathway — see the HDB renovation permit guide. For tips on vetting contractors and avoiding mid-project surprises, read our guide on hidden renovation pitfalls. And if structural walls are involved, review hacking and partition walls in Singapore before proceeding.

This guide covers general principles. Specific rules — deposit amounts, permitted hours, approved contractors — are set by each individual MCST. Always verify with your managing agent and check your development's by-laws before starting any renovation works.