Executive Maisonette Renovation, Jumbo HDB & Penthouse Design: Why These Large Homes Are Harder Than They Look

Ivan Lin
Oct 11, 2025
2 min read

Updated: May 11

By Ivan Lin, 10th Nov 2025

Large-format homes such as Executive Maisonettes (EM), Jumbo HDB flats, and penthouses are often assumed to be easier to design because they offer more space. In reality, these homes are far more demanding than standard layouts.

A successful Executive Maisonette renovation or Jumbo HDB renovation requires far more than decorative finishes. These homes demand careful spatial planning, zoning, circulation control, and proper understanding of scale.

1. Big Space Amplifies Bad Planning

This is one of the biggest challenges in Executive Maisonette renovation projects and Jumbo HDB interior design.

In small homes, mistakes are hidden. In large homes, mistakes are amplified.

Poor circulation creates:

Dead zones
Awkward transitions
Spaces that feel empty yet cluttered

More space requires better hierarchy, not more features.

Living room featuring the homeowner's favorite art piece seamlessly integrated into the cabiinet door design. — Project Jalan Menarong I By Aart Boxx Interior

2. Split Levels and Voids Can Become Design Challenges

For many penthouse interior design projects in Singapore, proper space planning becomes even more critical because oversized layouts can quickly feel disconnected if not designed cohesively.

Executive Maisonettes (EM) and penthouses often include:

Staircases
Voids
Split-level layouts

These elements:

Affect lighting
Affect acoustics
Affect air circulation

Without proper planning, they become liabilities instead of features.

Kid's room featuring a raised platform bed with integrated storage, clean modern design, and functional space planning. — Project Jalan Menarong I Aart Boxx Interior

3. Furniture Planning Is Critical in Large-Format Homes

In many Jumbo HDB renovation projects, furniture planning becomes just as important as carpentry layout.

Large homes fail when:

Furniture is undersized
Zones are undefined
Spaces lack purpose

A big living room without intention feels cold, not luxurious.

4. Structural and HDB Constraints Still Apply

Even in large resale units:

Structural walls remain there
Floor load limits exist
HDB guidelines restrict changes

Ignoring these leads to costly redesigns mid way through the project.

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5. Not Every Interior Designer Understands Large Homes

At Aart Boxx Interior, our team has extensive experience handling Executive Maisonette renovation and Jumbo HDB projects in Singapore.

Many designers are trained on:

BTO layouts
Standard condo plans

Large homes demand:

Advanced spatial planning
Long sightline control
Flow management

Scale is a skill, not everyone has it. Experience does not come by easy too. We have a team of experienced designers, who are fluent in big format houses especially Jumbo & EM HDB projects.

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