Planning a renovation in Singapore involves understanding specific timelines to ensure your move-in or business opening goes smoothly. Generally, a standard HDB BTO renovation takes 6 to 10 weeks, while a Resale flat takes 10 to 14 weeks due to the need for hacking and repairs.
Private condominiums usually require 8 to 12 weeks, and commercial office renovations typically take about 6 to 8 weeks. It is important to remember that these are construction times; planning, design, and permit applications add another 4 to 8 weeks beforehand. Whether you are fitting out a new office or upgrading your home, knowing these phases helps manage expectations.
5 Factors That Influence Your Renovation Timeline
When estimating a renovation schedule in Singapore, it’s helpful to view the timeline not as a fixed date, but as a moving target influenced by several logistical hurdles.
Here are the primary factors that determine how long your renovation will actually take:
1. Property Type and Existing Condition
The "starting line" of your project depends heavily on what is already there.
- BTO/New Launches: These are essentially blank canvases. Since the unit is empty and brand new, contractors can jump straight into protection works and hacking-free installations, making these the fastest projects to complete.
- Resale Units (Residential or Office): These require a "subtraction phase" before the "addition phase." You must account for several weeks dedicated purely to demolition, clearing debris, and making good the surfaces of old structures before any new work begins.
2. The Complexity and Scope of Work
The depth of your design vision is the most direct influencer of the clock.
- Cosmetic Refreshes: Projects limited to "surface-level" changes, like painting, installing vinyl flooring over existing tiles, or basic carpentry, can often be wrapped up in 3 to 4 weeks.
- Structural and Utility Overhauls: If you are hacking walls for an open-concept layout, rewiring an aging unit, or relocating plumbing points, you are looking at a much longer timeline. These tasks require precision and often involve sequential steps where one trade cannot start until the previous one finishes.
3. Regulatory Permits and Gatekeepers
In Singapore, your timeline is often at the mercy of administrative approval cycles.
- HDB vs. MCST: HDB permits are generally streamlined, but Condominium Management (MCST) can be a bottleneck. Some management committees only meet monthly to review applications, meaning your project could be delayed before a single hammer is swung.
- Commercial Compliance: For offices and retail, you must factor in time for BCA (Building and Construction Authority) submissions and SCDF fire safety clearances, both of which involve strict professional endorsements and waiting periods.
4. Supply Chain and Material Sourcing
The availability of your chosen finishes can bring a site to a complete standstill.
- Import Lead Times: Singapore imports a vast majority of its luxury materials. If you’ve set your heart on specific Italian marble, Spanish tiles, or designer fixtures, you must account for shipping durations.
- Stock Shortages: If a specific laminate or tile runs out mid-project, work on that section stops entirely until the next shipment clears customs, which can add weeks to the handover date.
5. Seasonal Peaks and Labor Availability
The calendar plays a massive role in how "available" your contractor’s workforce actually is.
- The Festive Rush: The months leading up to Chinese New Year are the most hectic. Demand for subcontractors (plumbers, electricians, and carpenters) skyrockets, and labor becomes scarce.
- The Holiday Standstill: During the actual CNY period, many renovation works grind to a halt for up to two weeks as workers return home or take leave. If you don't finish before the "festive cut-off," your timeline will automatically be extended by at least a fortnight.
Residential Renovation Timeline Breakdown
Understanding the breakdown for your specific property type helps you plan your lease or temporary accommodation. Here is what you can expect for different residential properties in Singapore.
HDB BTO Renovation Timeline (Estimated 6 – 10 Weeks)
New homeowners often assume a BTO renovation will be very fast. While it is faster than a resale, it still requires patience. A BTO flat is new, so there is very little hacking involved unless you are combining rooms. The focus here is on "adding" rather than "replacing."
The first two weeks usually involve site protection and electrical works. Contractors must cover the bomb shelter door, the windows, and the existing floor if you are keeping it. Electricians will come in to run concealed wires before any carpentry or false ceilings are installed.
Weeks three and four are typically for masonry and ceiling works. Even in a new BTO, you might want a shower kerb in the bathroom or a kitchen cabinet base. The workers will mix cement and sand to build these. False ceilings and L-boxes for lighting are also installed during this time.
The longest wait is usually for carpentry, which happens from weeks five to eight. Your wardrobes, kitchen cabinets, and TV consoles are made in a factory, not in your house. Once they are fabricated, they are brought to the site for installation. This is when the house really starts to look like a home.
The final two weeks are for finishing touches. This includes painting, installing lights, plumbing fixtures like sinks and toilet bowls, and the final chemical wash to remove all the construction dust.
HDB Resale Renovation Timeline (Estimated 10 – 14 Weeks)
Renovating a resale flat is a much larger project. You are not just building; you are undoing someone else's work first. The timeline is longer because of the demolition phase and the age of the flat.
The first three weeks are loud and dusty. This is the hacking and demolition phase. Old tiles, built-in wardrobes, kitchen cabinets, and sometimes even walls are removed. The debris must be bagged and hauled away, which is labor-intensive.
After the destruction comes the wet works, usually spanning weeks four to six. Resale flats often require new waterproofing in the kitchen and toilets. This is critical because you do not want to leak water into the neighbour's flat downstairs. Waterproofing chemicals need time to cure and dry before tiles can be laid over them.
Weeks six and seven often involve electrical and plumbing overhauls. If the flat is more than 20 years old, the existing wires are likely degraded. For safety, a complete rewiring is often recommended. This is more complex in a resale flat than a BTO because the electricians have to work around existing structures.
Carpentry and painting take up the bulk of the remaining time, from weeks 8 to 12. Just like with a BTO, the cabinets are made off-site. However, measurements for a resale flat can be tricky due to uneven walls or floors in older buildings, sometimes requiring adjustments.
Finally, weeks 13 and 14 are for the handover. This involves a thorough cleaning and checking for any defects.
Condominium Renovation Timeline (Estimated 8 – 12 Weeks)
Renovating a private condominium in Singapore comes with a unique set of challenges that affect the timeline. The actual work might be similar to an HDB, but the working hours are strictly controlled.
Most condos only allow renovation work between 9:00 am and 5:00 pm on weekdays. Some highly exclusive condos have even shorter hours. On top of that, noisy works like drilling or hacking are often restricted to a specific window, such as 10:00 am to 4:00 pm. This means your contractors have fewer hours in a day to get work done compared to an HDB renovation.
Logistics also slow things down. Workers often have to exchange passes at the security guardhouse every day. They must use the service lift, which might be shared with movers or other contractors. Materials have to be brought up slowly, and debris must be taken down the same way.
The MCST approval process must be completed before day one. You usually need to place a renovation deposit. The management will inspect the protection of the lift lobbies and corridors before allowing work to start. These administrative steps can add weeks to the process if not handled correctly.
Landed Property Renovation Timeline (4 Months – 1 Year+)
Landed properties are in a league of their own. The timeline depends entirely on whether you are doing simple Additions and Alterations (A&A) or a complete reconstruction.
For minor A&A works, such as internal renovation, repainting the facade, and changing the flooring, you are looking at 3 to 6 months. The space is larger than an apartment, so simply laying floor tiles takes longer.
If you are doing a reconstruction or a rebuild, the timeline stretches to 12 to 18 months. This involves structural changes, such as adding a new floor or changing the roof. You need a Qualified Person (QP), usually an architect or structural engineer, to submit plans to the BCA and URA.
Weather is a major factor for landed properties. Unlike apartments where work is done indoors, landed property renovations often involve exterior work. In Singapore, tropical rainstorms are frequent. If it rains heavily, roof works, external painting, and outdoor tiling must stop immediately. This unpredictability makes it hard to pin down an exact completion date.
Commercial Renovation Timeline In Singapore
Time is money for businesses. Every day the renovation drags on is a day of rent paid without revenue. Therefore, commercial renovations and commercial painting are usually much faster and more intense than residential ones.
Office Renovation Schedule (Estimated 6 – 10 Weeks)
An office renovation focuses on functionality and speed. The timeline typically ranges from 6 to 10 weeks, depending on the size of the office and the condition of the unit.
If you are taking over a bare unit, the work is straightforward. However, if you are taking over a fitted unit that needs to be gutted, you must factor in reinstatement works first. The main phases involve erecting drywall partitions to create meeting rooms, installing system furniture, and laying carpet tiles.
A critical part of office renovation is data and electrical cabling. Modern offices need extensive server setups and power points at every desk. This cabling is usually run under a raised floor or through the ceiling. Fire safety is also paramount; moving a partition wall often means relocating a sprinkler head, which requires FSSD submission and approval.
Retail and F&B Renovation Schedule (Estimated 8 – 12 Weeks)
Retail shops and restaurants have more complex requirements than offices. An F&B outlet typically takes 8 to 12 weeks to complete because of the heavy mechanical and electrical (M&E) works involved.
The kitchen is the heart of the restaurant, and it requires gas pipes, exhaust systems, grease traps, and heavy-duty waterproofing. These systems must comply with strict regulations from the Singapore Food Agency (SFA) and SCDF. Getting these approvals can sometimes take longer than the construction itself.
Retail renovations in shopping malls face strict working hour restrictions. Malls generally do not allow noisy works during operating hours to avoid disturbing shoppers. This means contractors often have to work the "graveyard shift" from 11:00 pm to 7:00 am. While this allows for uninterrupted work, it is physically demanding for workers and can lead to slower progress if not managed well.
Detailed Renovation Phases: What Happens When?
To help you visualise where the time goes, here is a step-by-step breakdown of the standard renovation procedure. Note that some of these steps can overlap.
Phase 1: Planning and Design (4 – 8 Weeks Pre-Renovation)
- Shortlisting interior designers or contractors and getting quotes.
- Finalising the 3D design drawings and selecting materials like tiles and laminates.
- Submitting the necessary permit applications to HDB, MCST, or FSSD.
Phase 2: Hacking and Demolition (1 – 2 Weeks)
- Clearing the site of furniture and debris.
- Hacking down walls, removing old floor tiles, and stripping out built-in cabinets.
- Protecting the lift lobbies and common corridors to prevent damage.
Phase 3: Wet Works and Masonry (3 – 5 Weeks)
- Constructing kitchen bases, cabinet bases, and shower kerbs using cement and bricks.
- Applying waterproofing membranes in wet areas (this requires time to dry and test).
- Tiling the floors and walls once the cement screed is dry.
Phase 4: Electrical, Plumbing, and Ceiling (1 – 2 Weeks)
- Running new electrical points, data cables, and relocating sockets.
- Installing new water pipes, especially for the kitchen and bathroom.
- Installing false ceilings, L-boxes, and cornice works to hide wires.
Phase 5: Carpentry and Fabrication (3 – 6 Weeks)
- Fabricating wardrobes, kitchen cabinets, and vanity units at the factory (this happens concurrently with wet works).
- Delivering and installing the carpentry on-site.
- Measuring and installing solid surface or quartz countertops after the base cabinets are fixed.
Phase 6: Painting and Cleanup (1 – 2 Weeks)
- Applying the first coat of paint (sealer) to the walls and ceiling.
- Applying the final coat of paint after all other installations are done.
- Performing a chemical wash and general cleaning of the entire property.
- Conducting a defect inspection and carrying out rectification works.
Common Reasons for Renovation Delays
Even with the best planning, delays can happen. It is wise to include a buffer in your schedule. One of the most common reasons for delay is permit issues. If the HDB or BCA requests amendments to your drawings, your contractor cannot proceed until the paperwork is cleared. This is out of the contractor's hands and depends on the speed of the government agency.
Rectification works can also slow things down, particularly in older resale flats. Once the hacking is done, contractors might discover spalling concrete or rusty rebar that was hidden behind the old tiles. These safety hazards must be fixed before cosmetic work can continue.
Supply chain issues are another frequent culprit. If you have your heart set on a specific tile from Europe, and the shipment is delayed at the port, your tiler has to wait. Similarly, if there is a shortage of skilled manpower, such as good carpenters or tilers, your project might be queued behind another one.
Finally, "Variation Orders" (VO) are a major cause of delays initiated by the homeowner. If you change your mind about the design halfway through, for example, deciding to move a wall after it has been built, work has to stop, demolition has to happen again, and new materials must be ordered. Sticking to your original plan is the best way to finish on time.
Conclusion On How Long Renovation Takes
Renovating a property in Singapore is a multi-stage process that requires patience and precise coordination. While a simple BTO project might finish in two months, complex commercial or landed projects can take much longer due to regulatory requirements and the scale of work.
A realistic buffer of 2 to 3 weeks is always recommended to account for unforeseen delays like material shortages or permit amendments. Good planning during the design phase is ultimately the best way to speed up the actual construction. If you have any questions or want to order a bouquet of flowers, please contact us.
Visit Esperto Paintworks to find professional commercial painting and home improvement.
Frequently Asked Questions About How Long Renovation Takes
How Long Does It Take To Renovate A 4 Room HDB?
It typically takes 8 to 10 weeks for a new BTO 4-room flat and 10 to 12 weeks for a resale 4-room flat. The resale timeline is longer because it involves hacking away old fittings, potential electrical rewiring, and waterproofing works that are not needed in a new BTO unit.
How Long Does HDB Renovation Permit Take?
HDB renovation permits usually take up to 10 working days (approximately 2 weeks) to approve once the contractor submits the correct documents electronically. However, if your renovation involves hacking walls, the permit might take longer as it requires a Professional Engineer's endorsement to ensure the structural integrity of the block is not compromised.
How Long Does It Take To Renovate A Resale Flat?
You should expect a timeline of 10 to 14 weeks for a resale flat. This duration is longer than a new flat because of the demolition phase, the need for cement screeding if the floor is uneven, and almost certain electrical rewiring for safety. "Hidden" issues like spalling concrete found after hacking can also extend this timeline.
Can Renovation Be Done On Saturday In Singapore?
Yes, renovation works can be done on Saturdays, but there are restrictions. General renovation is usually allowed from 9:00 am to 6:00 pm. However, loud and noisy works such as hacking, drilling, and demolition are typically prohibited on weekends in Condominiums and are strictly regulated in HDBs to maintain peace for the neighbours.
What Is The Best Time To Renovate A House In Singapore?
The middle of the year, specifically from April to September, is generally the best time. This avoids the frantic "rush" before Chinese New Year, where labour is scarce, costs may rise, and contractors are rushing to finish multiple projects. Renovating during the off-peak season often results in better attention to detail from your contractor.
How Long Does Commercial Renovation Take In Singapore?
A standard office renovation usually takes about 6 to 8 weeks, focusing on partitions and carpeting. However, Retail and F&B outlets are more complex due to kitchen fit-outs and strict fire safety requirements (SCDF FSSD), often taking 8 to 12 weeks to complete.
