Frequently Asked Questions About Interior Design and Home Construction

How to Design a Home That Is Beautiful, Comfortable, and a Worthwhile Long-Term Investment
1. What Is the Difference Between Modern and Modern Luxury Interior Design?
Although both styles emphasize simplicity, clean lines, and uncluttered spaces, Modern Style focuses primarily on functionality, openness, and simple forms.
Modern Luxury, on the other hand, elevates these principles through premium materials, refined details, and a greater level of craftsmanship. Elements such as natural stone, metal accents, high-quality built-in furniture, and thoughtfully designed lighting are often incorporated to create a more sophisticated and luxurious atmosphere.
The key to Modern Luxury is not simply using expensive materials, but creating a carefully balanced composition where materials, proportions, lighting, and details work together seamlessly.
2. How Much Budget Do I Need to Start an Interior Design Project?
There is no fixed budget, as the overall cost depends on the size of the property, scope of work, level of design detail, material selections, and construction requirements.
However, involving an interior designer from the beginning can help establish a realistic budget, minimize costly mistakes, and ensure that each investment contributes to both the aesthetics and long-term functionality of the home.
Early planning also allows homeowners to prioritize where to invest more and where costs can be optimized without compromising the overall design quality.
3. What Should Be Inspected When Renovating a 20–30-Year-Old Home?
Before renovating an older property, it is essential to carefully assess the condition of the existing building.
Key areas to inspect include:
- The main building structure
- Electrical systems
- Plumbing systems
- Roofing
- Water leakage and moisture issues
- The condition and structural integrity of existing materials
Any significant issues should be addressed before interior renovation begins. Resolving these problems early can help prevent unexpected expenses, protect the new interior work, and extend the overall lifespan of the property.
For older homes in particular, a professional site and structural assessment is an important first step before developing the renovation design.
4. Should I Choose Loose Furniture or Built-In Furniture?
Loose furniture is ideal for homeowners who value flexibility and want the freedom to rearrange, replace, or update their interiors over time.
Built-in furniture, on the other hand, can maximize space efficiency and provide a more integrated appearance, particularly in homes or condominiums where space is limited.
Many well-designed interiors combine both approaches. Built-in elements can provide storage and optimize functionality, while loose furniture introduces flexibility and allows the space to evolve with the homeowner’s lifestyle.
5. Which Direction Should a House Face for the Most Comfortable Living Environment?
In Thailand, north- and east-facing homes are often preferred because they can benefit from favorable natural light while reducing exposure to intense afternoon heat.
However, orientation alone does not determine how comfortable a home will be. Other important factors include the positioning and size of windows and openings, natural ventilation, shading, building layout, landscaping, and the selection of appropriate materials.
A well-designed home should respond to its specific site conditions, climate, and orientation rather than relying on direction alone.
6. What Is the Difference Between Natural Stone and Engineered Stone?
Natural stone has unique patterns, textures, and variations that give each piece its own distinctive character. Materials such as marble and granite can create a sophisticated and timeless appearance, although some types require greater care and maintenance.
Engineered stone generally offers greater consistency in color and pattern, good durability, easier maintenance, and a wider range of design options.
The right choice depends on several factors, including budget, design style, location, maintenance requirements, and how the surface will be used.

Engineered Stone

Natural Stone
7. How Can I Design a Luxurious Home That Won’t Go Out of Style?
The key to creating a luxurious yet timeless home is to focus on quality rather than short-term trends.
Choose high-quality materials, a refined neutral color palette, balanced proportions, and thoughtful architectural and interior details. Instead of incorporating too many trend-driven elements, focus on creating a strong design foundation that can evolve naturally over time.
A home that balances functionality, simplicity, craftsmanship, and material quality is more likely to remain elegant and relevant for years to come.
True luxury is not defined by how many expensive elements are included, but by how thoughtfully every detail comes together.
8. What Percentage of a Home’s Value Should Be Allocated to Interior Design?
As a general guideline, an interior design and fit-out budget may represent approximately 10–20% of the property’s value, depending on the scope of work, level of detail, material specifications, and individual project requirements.
For Luxury or high-end residential projects, particularly those involving extensive custom built-in furniture, premium materials, specialist finishes, or sophisticated lighting and building systems, the budget may be higher.
Rather than relying solely on a fixed percentage, it is advisable to develop a detailed budget based on the actual design scope and priorities of the homeowner.
9. Why Is 3D Visualization Important Before Construction Begins?
3D visualization allows homeowners to understand the overall design before construction begins.
It provides a clearer representation of key elements such as:
- Colors and materials
- Lighting
- Furniture and built-in elements
- Proportions and spatial relationships
- The overall atmosphere of each space
This helps reduce misunderstandings between the homeowner, interior designer, and contractor while allowing important design decisions to be made before significant construction costs are committed.
A well-developed 3D perspective also gives homeowners greater confidence in the design direction before moving into the construction phase.
10. How Can I Tell If a Construction Contractor Is Reliable?
When selecting a contractor, homeowners should consider several important factors, including the company’s previous projects, reputation, client reviews, contractual clarity, construction standards, and ability to communicate project details systematically.
A reliable contractor should be able to manage construction quality, budget, and project timelines effectively while maintaining clear communication throughout the process.
They should also be transparent about costs, materials, project responsibilities, and potential challenges—and be able to provide practical recommendations when unexpected issues arise.
Ultimately, choosing the right contractor is not only about comparing prices. It is about selecting a professional team that can translate the approved design into a finished space with the quality, accuracy, and attention to detail the project requires.
Consult Selene Design Before You Decide
Selene Design is a professional home design, interior design, and full-service design & build company, specializing in:
- Luxury Home Design
- Custom Home Construction
- Home Renovation
- Residential Interior Design
- Luxury Interior Design
- Full-Service Design & Build
- Comprehensive Construction Services
Our team can help assess the condition and potential of your existing property, evaluate your budget, and develop a professional project plan—giving you the clarity and confidence to choose the solution that delivers the greatest value for your home and lifestyle.
Start Your Design Journey with Selene Design
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