Average Cost of Interior Design for 100 Sq Ft House: Understanding the Costs Involved in Small Space DesignSarah ThompsonJan 09, 2026Table of ContentsQuick SummaryFactors Influencing Interior Design CostsCost Breakdown for 100 Sq Ft Interior DesignFAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeQuick Summary- Interior design for a 100 sq ft house typically costs $2,000–$5,000.- Furniture costs are about $1,000–$2,500, decor items around $500, with additional design consultation and labor fees.- High-quality materials and hiring a professional designer increase the overall budget.Designing the interior of a small house can be both exciting and challenging. When it comes to a 100 sq ft house, the average cost of interior design can vary significantly based on various factors such as location, materials used, and the complexity of the design. Typically, homeowners can expect to spend between $2,000 to $5,000 on interior design for such a compact space. This cost usually covers professional fees, furniture selection, and decor elements.Factors Influencing Interior Design CostsSeveral factors impact the overall cost of designing a small home. First, the choice of materials plays a crucial role. High-quality materials like hardwood floors or custom cabinetry can increase the budget. Additionally, hiring a professional interior designer may add to costs, but they can provide valuable insights and help optimize space effectively.Cost Breakdown for 100 Sq Ft Interior DesignUnderstanding how costs are allocated can help in budgeting. Typically, costs include design consultation fees, furniture (about $1,000-$2,500), decor items (around $500), and labor (if hiring professionals). It's essential to plan ahead and prioritize needs versus wants to stay within budget.FAQWhat’s your biggest challenge in designing a small room? Share your ideas below! Also, for those looking to explore design tools, check out Coohom's Floor Planner for easy layout designs.welcome to CoohomHome Design for FreePlease check with customer service before testing new feature.