4-Room Resale HDB Flat Renovations: From $35K to $140K

A look at 4-room HDB resale flat renovation ideas for every budget!

One of the hardest things about renovations is finding a balance between designing your dream home and keeping to your budget.

That’s especially true if you’re purchasing a resale unit. Besides the type of materials you want to use, how much you end up spending will depend on factors like the state of the flat when purchased, its size, and how much of the layout and furnishings you wish to change/retain.

According to data and interior designers we spoke to, the average 4-room resale HDB flat renovation in 2025 costs between $64,300 and $80,300.

To give you a better idea of what your renovation budget could possibly get you, we’ve compiled a list of 11 beautiful 4-room resale flat renovation projects in Singapore that range from $35k to $140k.

1. 4-room resale flat at Tampines North Drive 2 | Renovation cost: $35,000

With a renovation cost of $35K, this 4-room resale flat proves that a minimalist interior can still pack a punch. The homeowners opted for a clean, bright look anchored by white walls, light wood tones, and soft grey accents — keeping the space airy and modern with minimal built-ins to keep costs low.

To add visual interest, a softly curved archway frames the corridor leading to the bedrooms — breaking up the linearity of the space and adding just the right touch of character to the otherwise simple design.

In the kitchen, the owners opted for a galley-style layout that ensures practical workflow, with sleek cabinets and counters that maintain the home's neutral palette without overwhelming the space.

The bathroom takes a simple, functional approach — but with a twist. A built-in bathtub and rain shower offer a spa-like experience, showing that even budget-friendly renovations can include small luxuries with smart planning.

View FlipStone Interior Design's Portfolio

2. 4-room resale flat at Sumang Walk | Renovation cost: $46,000

For $46K, this 4-room resale flat underwent a practical yet stylish refresh — with renovation works focused on essential updates like carpentry and avoiding add-ons like a false ceiling to keep costs low. The result? A clean-lined, contemporary home that feels brand new without a full overhaul.

To open up the communal space, the owners hacked down the walls to combine the living room and study, creating a more spacious, light-filled layout.

A full-height TV feature wall with a floating console doubles as a partition between the two zones, while see-through folding doors allow the study to be enclosed when needed without blocking natural light.

Just by the entrance, a full-height shoe cabinet and settee set the tone with warm wood laminates — but it’s the arched nook with integrated lighting that immediately draws the eye. It acts as both a visual anchor and a functional drop zone.

In the living area, a half-moon fluted wall feature with integrated lighting adds subtle drama and dimension behind the sofa. This sculptural detail not only enhances the space aesthetically, but also reinforces the home’s soft, curved design language.

Instead of a traditional kitchen entrance, the space is framed by a fluted glass swing door and a matching half-height panel — providing privacy without visually cutting off the space. This thoughtful detail adds texture and visual interest while allowing light to filter through, maintaining the home’s open, airy feel.

Working with a relatively tight budget of under $50K, the owners concentrated the major works to communal areas that see the highest traffic and usage.

View The Interior Lab's Portfolio

3. 4-room resale flat at Northshore Drive | Renovation cost: $55,000

This bold, retro-futuristic home may not be everyone’s cup of tea — but for the homeowners, it’s a perfect match. From moody lighting to colour-shifting LED clouds and custom statement carpentry, every design decision was made with their lifestyle and aesthetic preferences in mind.

The kitchen is where it all comes together: sleek black cabinetry, mirrored finishes, and ambient lighting set a dramatic tone — but it’s the multifunctional centre island that really steals the spotlight. Housing a retractable dining table, hidden storage drawers, and even a built-in mahjong table, it’s a space-saving powerhouse that adapts seamlessly to cooking, dining, and entertaining.

Instead of conventional overhead cabinets, a suspended open shelf above the island serves as a home bar and display for the couple’s bottle collection — adding personality without crowding the visual space.

This home is a reminder that good design isn’t about trends — it’s about creating a space that truly reflects how you want to live.

View Jesigns Interior Design's Portfolio

4. 4-room resale flat at Toa Payoh Lorong 14 | Renovation cost: $60,000

This 4-room resale flat was revamped with an impressive amount of built-in carpentry — all within a modest $60K renovation budget. From full-height wardrobes to custom study desks and integrated storage, the home balances function and form with smart, space-saving solutions at every turn.

The living area features smart built-ins that keep things sleek and functional — from the custom vinyl shelves to a hidden turntable compartment tucked neatly beneath the TV.

Designed for both function and connection, this open-concept kitchen features a sleek bar counter that makes hosting feel effortless — whether you’re chatting with guests or keeping an eye on the kids while prepping dinner.

It’s not every day you see custom carpentry dedicated to a TV setup in the bedroom — but here, it’s a deliberate choice that reflects the owners’ lifestyle. The built-in feature wall not only adds visual warmth but also anchors the space for rest, entertainment, and downtime.

On the other side of the main bedroom, the layout was reimagined to carve out a dedicated study, complete with integrated wardrobe and open shelves. This multifunctional setup makes full use of every inch, blending storage and workspace into one seamless, efficient design.

View Paddry Interior's Portfolio

5. 4-room resale flat at Senja Road | Renovation cost: $67,900

Light, bright, and softly luxurious — this resale flat blends Scandinavian sensibilities with elegant accents to create a calming, well-styled space that’s easy to love. While it may look effortless, the renovation was a comprehensive one, covering hacking, tiling, rewiring, and plenty of custom carpentry.

The homeowners’ love for thoughtful detailing shows up in small, unexpected ways — like decorative accessories hanging next to the mirrored wall in the living room and above the kitchen island. These little touches lend a lived-in, personal charm to the home, softening the clean lines of the overall Scandinavian look.

The kitchen is just as thoughtfully designed. With shaker-style cabinetry, a farmhouse sink, marble-look backsplash and the same gold accents seen in the living room, it balances form and function beautifully.

Overall, it’s a great example of how resale HDB flats can be completely reimagined into serene, stylish sanctuaries — with the right mix of detail, restraint, and smart planning.

View MSR Interior Design's Portfolio

6. 4-room resale flat at Sumang Walk | Renovation cost: $75,000

With a renovation budget of $75K, this 4-room resale flat underwent a full transformation — including hacking, rewiring, tiling, and extensive custom carpentry.

The result is a calming, modern-classic home filled with thoughtful details: soft arches, gold hardware, and clean-lined wainscoting that add quiet elegance without going over the top.

The open-concept kitchen features warm lighting, recessed handles, and marble-look finishes, while the adjacent dining area ties in with light wood accents for a cohesive look.

The timeless look continues into the bedroom, with full-height shaker-style wardrobes and curated lighting completing the space.

View Okaeri Studio's Portfolio

Explore: 8 Interior Design Firms in Singapore That Nail The ‘Quiet Luxury’ Look

7. 4-room resale flat at Admiralty Drive | Renovation cost: $80,000

This 4-room flat makes a bold first impression with its warm, cocoon-like palette and a thoughtful mix of textures, curves, and architectural structure — a far cry from your typical resale layout. Typically, carpentry like the one in this flat’s kitchen will cost more due to the fan-shaped layout of the unit.

The checkerboard flooring creates a striking foundation in the foyer, complemented by dark wood wall panels and rounded archways that lend a subtle Mediterranean flair.

Custom lighting and wooden accents frame the transition spaces beautifully, creating an almost gallery-like ambience from the moment you enter.

The dining area doubles as a creative zone, with wide-span windows and glass blocks that let ample natural light through while adding an old-school charm.

One of the standout features is the luxurious walk-in wardrobe, outfitted with glass doors, ambient lighting, and a central island that you typically only see in a rich young master’s room in a K-drama.

View Darwin Interior's Portfolio

8. 4-room resale flat at Teban Gardens Road | Renovation cost: $90,000

With a $90K renovation, this home is a vibrant reflection of its owners, filled with mementos from their travels and quirky touches that make every corner feel personal and lived-in.

The living room is anchored by wide foldable windows that frame an unobstructed view of the skyline. Books, knick-knacks, and travel souvenirs line the custom-built ledge that stretches across the windows — doubling as both display and storage.

From red metal dining chairs to (intentionally) mismatched décor and a stunning view of the skyline, the communal area is as bold as it is inviting. One standout feature? The tiled wall, which adds a dose of texture and visual contrast to the otherwise clean white backdrop. It’s an unexpected yet fitting design move that perfectly reflects the home’s eclectic spirit.

In contrast to the vibrant communal zones, the kitchen adopts a more subdued palette of white laminates and light wood tones—offering a calm, clean-lined respite from the rest of the home’s colourful flair.

Just beyond, the service yard continues the minimalist theme with a floating bar counter positioned by the window, next to the washer and dryer. It's a clever addition that adds functionality without compromising on aesthetics, making even utilitarian corners feel thoughtfully designed.

View The Local INN.terior 新家室's Portfolio

9. 4-room resale flat at Bedok Reservoir Road | Renovation cost: $95,000

Not all renovations are created equal—and this bachelor pad proves it. Designed around the homeowner’s love for fantasy, pop culture, and all things Hogwarts, a $95K renovation transformed this resale flat into a collector’s dream.

Right from the entryway, it’s clear this home is anything but ordinary. A lineup of dramatic Harry Potter prints sets the tone, while moody lighting and clean lines give the space a gallery-like polish.

At the heart of the home lies an open-concept layout that seamlessly merges the living and kitchen areas. A central pillar acts as a subtle divider, while the dark-toned built-ins create visual continuity across zones. Despite the brooding palette, natural light flows in generously from both ends, lending the home a balanced, breathable feel.

Every collector dreams of a feature wall like this. Custom display shelves stretch across the length of the room, packed with carefully arranged figurines and themed artefacts. A concealed doorway blends into the cabinetry—serving as a portal (fittingly) to the hidden bedroom, much like the ones found throughout the Wizarding World.

The fandom carries through to the bedroom, where a long hallway doubles up as a study nook and mini poster gallery. From framed prints to a dedicated workspace, the setup blends lifestyle and passion in equal measure—making room for both productivity and personal expression.

View Prologue Studio's Portfolio

10. 4-room resale flat at Dawson Road | Renovation cost: $120,000

This $120K renovation draws on muted tones and curved motifs to create a peaceful sanctuary, focused on enhancing flow, storage, and quiet luxury.

The open-concept layout of the communal area is clean and calming, with a palette of soft neutrals and warm wood tones that make the space feel expansive yet cosy. A mix of curves and lines — from the cove ceiling to the rounded dining chairs — creates subtle visual rhythm without overwhelming the eye.

The open-concept kitchen strikes a balance between warmth and utility, with dark wood-toned cabinets, clean-lined shelves, and glossy fluted tiles that catch the light.

Open shelving keeps everyday essentials within easy reach, while the built-in book ledge at the peninsula subtly adds a personal, lived-in touch to the space.

The study leans into a darker, more intimate palette — think deep wood tones, textured finishes, and soft natural light filtering through Venetian blinds. It’s a space that feels contemplative and grounded, with the built-in shelving and wall panels adding both function and visual depth.

In the bedroom, the same rich walnut tones carry through, creating a cosy and cocooning atmosphere. Paired with soft textiles and minimalist wall sconces, the space feels warm and intimate. The understated palette allows the textures — from the wood grain to the fabric headboard — to take centre stage.

View Authors • Interior & Styling's Portfolio

11. 4-room resale flat at Northshore Drive | Renovation cost: $140,000

With a renovation cost of $140K, this resale flat sits on the higher end of the spectrum on our list — but for good reason. From extensive hacking to custom carpentry and expensive materials, the overhaul delivers a refined, hotel-inspired home where every design choice feels intentional and elevated.

With glossy marble-like floors, sleek matte cabinets, and an elongated stone dining table as the centrepiece, this space immediately sets the tone for a polished, luxurious home. Subtle ambient lighting and fluted mirrored panels along the entryway further elevate the mood, reflecting both light and space for a grander feel.

The custom-built dining table cleverly conceals hidden storage within its curved ends. Perfect for stashing away snacks or dining essentials, it’s a subtle design detail that proves even statement pieces can be practical.

Flanked by sleek black cabinetry and underlit with soft ambient lighting, this galley kitchen is a picture of streamlined efficiency. A marble-look backsplash lends subtle elegance, while the see-through glass partition keeps the space visually connected to the rest of the home without compromising on cooking containment.

The marble-look finish seen throughout the home continues seamlessly into one of the common bedrooms, tying the space back to the overall interior theme. With matching cabinetry and the bed frame clad in the same marble-inspired laminate, the design feels intentional and cohesive.

Sleek glass-door wardrobes and concealed lighting enhance the polished look, while the integrated vanity makes efficient use of the compact footprint.

The master bedroom channels a moodier, more dramatic palette while maintaining the home’s modern-luxe aesthetic. Dark wall panels accented with gold inlays set a refined tone, complemented by the plush grey bedding and sleek built-ins. A softly illuminated arched niche acts as a subtle design feature while offering functional bedside storage.

This walk-in wardrobe channels boutique energy with its glass-fronted cabinets, softly backlit shelves, and curated displays.

A vanity counter anchors the space, while steps leading up to the bed create a subtle yet effective transition between dressing and resting zones, giving the space a layered sense of privacy and purpose.

View 7 Sense Studio's Portfolio

Looking to renovate your 4-room resale HDB?

At Qanvast, we can shortlist designers who can help you design your dream home. Tell us your renovation requirements and you’ll get personalised renovation quotes from interior design firms – completely free!

Engaging an interior designer firm through our recommendation service has its perks, as you can opt in for the Qanvast Guarantee that safeguards up to $50,000 of your renovation deposits.

This article was originally published on 14 October 2021 and last updated on 19 June 2024.

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