HDB Interior Design Singapore: Open Kitchen Pros and Cons
HDB interior design Singapore homeowners increasingly ask for open-concept kitchens. Since HDB allows open kitchens in most flats, many BTO and resale owners remove the wall between cooking and living zones for more light and flow. The 2019 onward BTO rule that disallows enclosing balconies pushed many toward internal open layouts. Reno still needs an HDB permit, processing about 2 weeks.
Why HDB allows open-concept kitchens
HDB permits open kitchens because the building structure and fire strategy do not depend on a closed kitchen wall. New BTO flats are delivered induction-ready, which removes the need for a gas supply and makes an open layout simpler to pass. Resale flats with an existing gas pipe can still go open, but the owner must follow SP Group and SCDF rules on gas appliance placement. Your contractor in the HDB Directory of Renovation Contractors files the layout with the permit application. A Licensed Renovation Contractor (LRC) handles this on your behalf.
The open plan is a layout choice, not a structural one. You are moving a non-load partition or simply leaving the kitchen uncboxed. That keeps the job inside what HDB approves and avoids the ban on hacking structural walls, beams, columns and slabs.
Space and light gains in a compact flat
Most HDB flats are tight. A 4-room flat measures about 90 sqm and a 5-room about 110 sqm. Removing the kitchen partition visually enlarges the living and dining area without moving any structural wall. You get a sightline from the stove to the sofa, which helps when you cook while watching children or a show.
- More natural light reaches the kitchen from the living window or service yard.
- The dining table doubles as a prep surface during big cook-ups.
- Casual guests feel included instead of parked in the living room.
- Fewer doors mean easier cleaning and less hardware to maintain.
For HDB flat space saving, an open kitchen pairs well with a single continuous counter that runs from cooktop to island. The line reads as one piece of furniture rather than a closed box. You also gain a wall that previously held the kitchen door, useful for a slim shelf or a piece of art.

Ventilation and smoke you must plan for
An open kitchen trades a closed door for a real ventilation plan. Grease and smell travel into the living area if you cook with strong aromatics. Plan the system before you commit to the layout so the home stays comfortable after a curry night.
- Fit a powerful cooker hood rated above 600 cubic metres per hour for daily Asian cooking.
- Add a slim recirculating unit or a window fan near the service yard for extra pull.
- Choose a finishes palette that wipes clean, quartz countertops and laminate carpentry near the cook line.
- Keep a movable partition or glass slide for days you fry with heavy smoke.
- Place the fridge and dry storage at the living edge so traffic does not cross the hot zone.
Newer BTO flats arrive induction-ready, so you avoid open-flame smoke entirely. That single change cuts most odour complaints in an open layout and keeps the air calmer for anyone with asthma or young kids.
Cost and permit steps for an HDB interior design open kitchen
A 4-room BTO open kitchen reno sits in the market range of about S$30,000 to S$45,000 for the whole flat, while resale runs about S$50,000 to S$70,000 because of added hacking and rewiring. The kitchen portion is a slice of that. Follow these steps so the open wall passes.
- Confirm with your LRC that the wall is non-structural. HDB bans hacking of structural walls, beams, columns and slabs.
- Submit the HDB renovation permit with the new layout drawing. Processing takes about 2 weeks.
- Book your Licensed Gas Service Worker if you keep gas, or confirm the induction circuit with SP Group.
- Schedule hacking and drilling for weekdays 9am to 6pm. No noisy works on Sundays or public holidays.
- Keep the bomb shelter untouched. Only light fittings and laminated flooring go inside, and the door stays.
Window grilles on upper-floor windows stay as required by HDB for child safety. An open kitchen does not change that rule, so budget the grilles into the plan from the start.
Who should keep a closed kitchen

Heavy daily frying, a large extended household, or a strict no-smell preference makes a closed kitchen the safer call. Resale owners with old gas pipes and tight budgets may also delay the open plan to the next cycle. You can still borrow light with a glass partition that keeps odour out.
When you plan HDB interior design for a whole flat, the kitchen is only one room in a system. Whole-house customization lets you match the open kitchen to your storage, study nook and platform bed so the whole home works as one plan. Talk to our team about a layout built around how you actually cook and live.
