How Much Does a 4 Room HDB Renovation Cost? (2023 Guide)

15 Aug 2022

What’s the cheapest way to get a new HDB flat? Is it by renovating the one you already have, or building a brand new home from scratch? If you’re planning to renovate your home, whether it’s a 2-room flat or a 4-room HDB, you might be wondering how much does it cost to renovate. We have some handy information about how much a 4-room HDB renovation costs below.

Interior Design Project Costs in Singapore

How do you estimate interior design costs now that you know how to cut costs on designing? The typical price range for interior design packages in Singapore for particular projects is as follows:

Type of Housing Estimated Cost
3-room BTO $45,800 to $55,700
4-room BTO  $49,500 to $62,800
5-room BTO  $55,000 to $69,000
3-room resale  S$30,000 to S$65,000
4-room resale S$38,000 to S$73,000
5-room resale S$50,000 to S$82,000
Condominium (according to size) S$40,000 to S$120,000


In Singapore, there are numerous different interior design projects. In contrast to certain IDs who offer to tailor the plan to each unit, others offer packages like HDB BTO or resale packages.

These packages often include project management, masonry, plumbing, ceiling & carpentry work, design consultations, space planning, and other ad hoc tasks like painting and cleaning. 

Prices vary depending on the package, which may include labor and material costs as well as the area of the house being restored. For instance, there are design packages for bathrooms or kitchens that cost between $6,000 and $20,000.

The devil, however, is in the details, and these restoration packages frequently include vital design and construction services. When you need further additions or work done on your house, they could be used by dishonest businesses to mark up prices highly. For those seeking a comprehensive interior design experience, such packages might not be the best option. 

Again, this differs from renovation contractor Singapore to design company, so be sure to do your homework by reading reviews and asking prior clients about the company you’ll be working with.

Renovation Budget Estimates For a 4-Room HDB flat

Here are the estimated costs for renovating a 4-room HDB apartment (price is per room):  

Estimated costs for living room

Renovation component Light Moderate Extensive
Hacking $100 to $300 $300 to $700 $700 to $3,800
Masonry $100 to $1,200 $1,200 to $2,900 $2,900 to $21,900
Carpentry $100 to $3,400 $3,400 to $6,200 $6,200 to $23,600
Ceiling & partition $100 to $700 $700 to $1,200 $1,200 to $3,200

Estimated costs for bedrooms (price is per room)

Renovation component Light Moderate Extensive
Hacking $100 to $300 $300 to $700 $700 to $3,800
Masonry $100 to $1,200 $1,200 to $2,900 $2,900 to $21,900
Carpentry $100 to $3,400 $3,400 to $6,200 $6,200 to $23,600
Ceiling & partition $100 to $700 $700 to $1,200 $1,200 to $3,200

Estimated costs for kitchen


Renovation component Light Moderate Extensive
Hacking $100 to $400 $400 to $900 $900 to $3,100
Masonry $100 to $1,300 $1,300 to $3,800 $3,800 to $11,200
Carpentry $100 to $4,200 $4,200 to $6,800 $6,800 to $17,800
Plumbing $100 to $200 $200 to $400 $400 to $1,700

Estimated costs for bathroom


Renovation component Light Moderate Extensive
Hacking $100 to $400 $400 to $900 $900 to $6,700
Masonry $100 to $1,400 $1,400 to $5,600 $5,600 to $17,400
Carpentry $100 to $1,100 $1,100 to $2,000 $2,000 to $8,900
Plumbing $100 to $200 $200 to $700 $700 to $3,800


Due to the large number of variables. The final cost of renovation is determined by:

  • Type of home

Is it a condo, HDB apartment, or landed home? Existing fittings are there any that  come with it already?

  • Type of materials

Expect to pay more if you like parquet flooring and countertops made of atas marble.

  • Age & condition

For a brand-new BTO and a decades-old resale apartment, the amount and type of restoration work will be considerably different.

  • How much work

Are you largely content with the situation as it is, or do you wish to start over and create the house of your dreams?

  • The contractor

Of course, charges vary amongst businesses.


Factors That Influence BTO Renovation Costs

The cost of renovating a BTO in Singapore is influenced by several factors. Here are some of the factors that affect the cost of BTO renovation in Singapore:

  1. Unit size – The larger the BTO unit, the higher the renovation cost.
  2. Level of difficulty – Some renovations require specialized skills such as installing hardwood floors or replacing plumbing systems. The more difficult the renovation project, the higher the cost.
  3. Quality of materials – The price of renovation materials can vary depending on their quality. Higher-quality materials tend to be more expensive.
  4. Design choices – Renovation costs can vary depending on the design choices made. More intricate and complex designs tend to be more expensive.
  5. Timeframe – The renovation timeframe can affect the cost. Longer renovations may require additional costs for temporary accommodation or rental fees.
  6. Location – Renovation costs can vary depending on the location of the BTO. Some areas may require additional costs to meet specific building requirements.

When considering the cost of renovating a BTO in Singapore, it is important to take these factors into account. BTO renovations can be a good investment, but they should be approached with care to avoid exceeding the budget set.


Who Renovates Your BTO Flat

In Singapore, homeowners are responsible for finding and hiring their own renovation contractors to renovate their BTO flats. The Housing and Development Board (HDB) provides a list of registered renovation contractors on their website for homeowners to choose from. It is important to choose a reliable and trustworthy contractor to ensure that the renovation is done properly and within the agreed timeframe and budget. Homeowners should also ensure that their chosen contractor has the necessary licenses and permits required by the HDB and other relevant authorities. Additionally, homeowners should have a clear understanding of the scope of work and payment terms before signing a contract with their chosen renovation contractor.


What’s common Scope of Renovation Work Done to Your BTO flat in Singapore

The scope of renovation work done to a BTO flat in Singapore can vary depending on the homeowner’s needs and preferences. However, some common renovation works that are typically done include:

  1. Flooring – Homeowners may choose to replace the standard vinyl flooring provided by HDB with other types of flooring such as tiles or laminates.
  2. Carpentry – Built-in cabinets, wardrobes, and shelving units can be installed to maximize storage space.
  3. Electrical Works – Homeowners may choose to install additional electrical points, lighting fixtures, and ceiling fans.
  4. Plumbing Works – Homeowners may choose to replace the standard HDB toilet bowl and basin with other designs and install a water heater.
  5. Painting – The walls and ceiling of the flat can be painted to give the space a fresh and new look.
  6. Kitchen – Homeowners may choose to install a new kitchen cabinet, countertop, and sink.
  7. Bathroom – The bathroom can be renovated with new tiles, shower screens, and vanity.

These are just some common renovation works done to BTO flats in Singapore. Homeowners can choose to customize the renovation works based on their preferences and budget. It is important to consult with a reliable and trustworthy renovation contractor to ensure that the renovation is done properly and safely.


Need Help with Your New BTO Flat?

A 4-room HDB apartment (90 sq m) can be renovated for anywhere between $5,000 and over $100,000. The projected price range for a four-room HDB BTO flat renovation ranges from $7,400 to $71,370, depending on the extent of the renovation and whether it is for a new BTO or a resale HDB.

We make use of 3D rendering and animation

Elpis Interior offers full service, providing complete interior design from concept to completion. We work with clients in any stages, and have provided services to private and commercial sectors. At Elpis Interior we’re all about helping you visualize your space before it’s built, saving you money and time. We make use of 3D rendering and animation to show you exactly how your space will look, before it’s even built. Get your real renovation plan with our animation and 3D visualization by contacting us here.


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