Is Kitchen Ducting Legal in Singapore? The Definitive HDB & Condo Compliance Guide
- BRU Room

- Mar 30
- 2 min read

The "Illegal" Myth
In the Singapore renovation scene, you’ll often hear that kitchen ducting is "not allowed" for HDB flats or Condos. However, this is usually a simplification. Most Interior Designers (IDs) and contractors avoid ducting because it requires complex airflow calculations and precise coordination with carpentry—tasks that a generalist firm isn't equipped to handle.
At BRU Room, we don't bypass the rules; we plan within them. Ducting is entirely permissible in Singapore when it follows strict structural and safety guidelines.
How We Ensure Compliance
We position ourselves as the technical bridge between beautiful design and functional engineering. Here is our 2-pillar approach to legal installation:
No Structural Hacking: We never perform unauthorized hacking of RC beams, columns, or structural walls. Our systems use non-invasive routing, often utilizing the "shadow gaps" in your carpentry or existing ventilation openings.
Facade Integrity: Singapore’s building codes are strict about "External Facades." We ensure that no part of the ducting system protrudes or alters the look of the building from the outside—preserving your estate’s aesthetic and your security deposit.
A Specialist Partner for IDs and Contractors
We know that for an Interior Designer, a kitchen duct is a technical liability. If it’s not planned right, it creates noise, leaks, or greasy residues that lead to client complaints.
BRU Room acts as a specialized sub-contractor for the industry. We provide the technical routing designs that IDs can drop into their plans. By letting us handle the "dirty work" of airflow physics, IDs can focus on what they do best: creating stunning aesthetics.
Our "Plan First" Process
Whether you are a homeowner or a design partner, our process is built on clarity:
Feasibility Evaluation: We analyze the BTO or Condo floor plan to find the most efficient, legal route.
Proposed Routing Design: We provide a blueprint that ensures no interference with gas pipes, electrical trunking, or structural elements.
Expert Execution: Our team installs with surgical precision, ensuring the system is hidden, quiet, and effective.
HDB vs Condo: Is There a Difference?
HDB Flats
Governed strictly by *Housing & Development Board guidelines
External modifications are more controlled
Works must follow renovation rules
Condominiums
Governed by the Management Corporation Strata Title (MCST)
Rules vary by development
Some condos are stricter than HDB
Always check with your MCST before proceeding.
What a Compliant System Looks Like
A properly planned kitchen ducting system should:
Stay within the unit
No external visual impact
Discharge air responsibly
Allow for maintenance access
Use proper materials and installation methods
In short: well-designed, not improvised
What You Should Do Before Installing
Before committing, homeowners should:
Check if your unit layout supports proper routing
Understand where the exhaust will discharge
Clarify with HDB or MCST if needed
Work with someone who understands local constraints
Want to check if your BTO layout is eligible for a legal system?
Explore our HDB Ducting System Services or WhatsApp our specialists for a free feasibility check



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