Expanding your home by adding an extra storey is an excellent way to increase living space and property value, especially in land-scarce Singapore. Whether you’re looking to create more room for a growing family or elevate your home’s market appeal, this guide will walk you through the essential steps to add an additional storey to your 2-storey landed property.
- Understand URA and BCA Regulations
Before embarking on any renovation, it’s crucial to familiarize yourself with the regulations set by the Urban Redevelopment Authority (URA) and the Building and Construction Authority (BCA).
Zoning Restrictions: Check the property’s zoning under the URA Master Plan to confirm if your home is eligible for vertical expansion.
Storey Height Control: Most landed homes in Singapore are capped at 2 or 3 storeys depending on their designated area.
Gross Floor Area (GFA): Adding a storey will increase the GFA, which must comply with planning permissions.
Building Setback Requirements: Ensure your design aligns with setback regulations for privacy and safety.
- Engage Qualified Professionals
Adding a storey requires the expertise of qualified professionals:
Architect: To design the extension and navigate regulatory submissions.
Professional Engineer (PE): To assess the structural integrity of your existing foundation and framework.
Builder/Contractor: Engage a licensed contractor experienced in A&A (Additions & Alterations) works for landed properties.
At Three E Building Construction Pte Ltd, we specialize in such projects, ensuring smooth design, approval, and construction phases.
- Conduct a Structural Feasibility Study
Your property must be structurally capable of supporting an additional storey. The Professional Engineer will:
Evaluate the strength of the foundation and load-bearing walls.
Recommend reinforcement if necessary.
Assess the soil condition if foundation work is required.
- Plan and Design Thoughtfully
Work closely with your architect to design a space that complements your existing structure. Consider:
Purpose of the Extra Storey: Master suite, home office, entertainment room, or rental unit.
Natural Light and Ventilation: Incorporate skylights or larger windows.
Access: Adding a staircase or even a lift for long-term convenience.
Aesthetic Consistency: Maintain design harmony with the current façade.
- Submit for Regulatory Approval
You must submit the necessary documents to the URA and BCA for approval:
Architectural and structural plans.
Structural calculations and reports.
Permit applications through the CORENET e-Submission platform.
Approval typically takes 2 to 3 months, depending on the complexity of the project.
- Plan Your Budget
A project of this scale requires careful budgeting. Costs can range from $250 to $400 per square foot, depending on design complexity and materials. Key budget items include:
Design and consultancy fees.
Structural reinforcements.
Construction and materials.
Permit and submission fees.
It’s also wise to set aside 10-15% for unforeseen expenses.
- Construction and Project Management
Once approvals are secured, construction can begin. Expect the following stages:
Structural Reinforcement: Strengthening the existing foundation and structure.
Framing and Roofing: Building the framework for the new storey.
Internal Works: Electrical, plumbing, and finishing works.
Quality Checks and Compliance Inspections.
Depending on complexity, construction may take 8 to 12 months.
- Post-Construction Compliance
After completion, the BCA will inspect the works for safety and compliance. Once cleared, a Certificate of Statutory Completion (CSC) or Temporary Occupation Permit (TOP) will be issued.
Ready to Expand Your Home?
At Three E Building Construction Pte Ltd, we guide homeowners through every stage of adding an extra storey—from design to construction. With our expertise in landed property renovations, we ensure a smooth and stress-free experience.
Contact us today to explore how we can help you transform your home.
Three E Building Construction Pte Ltd
Building Dreams, Creating Spaces.
