Interior Design Mistakes That Make Your Home Feel Cheap

(And How to Fix Them)

Even the best-intentioned design choices can sometimes fall flat, leaving a space feeling less refined than envisioned. If your home lacks cohesion or feels underwhelming, it could be due to common design mistakes that unknowingly cheapen its look. The good news? These mistakes are easy to fix with a few strategic updates. Here are the top interior design pitfalls—and how to correct them for a high-end, polished look.

1. Poor Lighting Choices

The Mistake: Harsh or Insufficient Lighting

Lighting has the power to elevate or completely diminish a space’s aesthetic. Relying solely on overhead lighting or using overly harsh bulbs can make a room feel sterile and uninviting, while inadequate lighting creates dark, unbalanced spaces.

The Fix: Layered Lighting

To achieve a designer-worthy look, incorporate layered lighting, which includes ambient (general lighting), task (focused lighting like reading lamps), and accent (decorative lighting such as sconces or statement pendants). Opt for warm LED bulbs for a softer, more inviting glow, and consider adding dimmer switches to create ambiance.

2. Matching Furniture Sets

The Mistake: Overly Coordinated Furniture

Furniture sets that match perfectly may seem like an easy choice, but they can make a home feel generic and uninspired. Overly coordinated pieces lack the curated feel of a well-designed space.

The Fix: Mix and Match with Intention

Create a more collected, high-end look by mixing furniture styles, materials, and textures. Pair a modern sofa with a vintage coffee table or mix wood tones for added depth. Thoughtful contrast brings character and personality to a room.

3. Ignoring Scale and Proportion

The Mistake: Furniture That’s Too Big or Too Small

An oversized sectional that overwhelms a space or a tiny rug in a grand living room can throw off the entire balance of a room. Scale and proportion are key to a harmonious design.

The Fix: Measure & Plan Layouts

Before purchasing furniture, map out your space using measurements and consider the room’s proportions. A large area should have an appropriately sized rug that anchors the seating area, and furniture should have enough breathing room to allow for easy movement. Using online design tools or consulting a professional can help achieve the right balance.

4. Neglecting Window Treatments

The Mistake: Bare or Cheap-Looking Curtains

Neglecting window treatments or opting for poorly made, ill-fitting curtains can make a room feel unfinished. Short, thin curtains can cheapen a space instantly.

The Fix: Invest in High-Quality Drapery

For an instant upgrade, choose floor-length curtains that extend beyond the window frame to create the illusion of height. Natural fabrics like linen or cotton provide a luxurious touch, and well-placed hardware enhances the overall look. For an even more elevated approach, consider custom window treatments.

5. Overlooking Architectural Details

The Mistake: Plain Walls Without Texture or Depth

Walls that lack architectural interest can feel flat and uninspired, making a space look less sophisticated.

The Fix: Add Molding, Millwork, or Texture

Incorporate wainscoting, crown molding, or textured wallpaper to bring depth and elegance to a space. Simple paneling or trim details can instantly add architectural interest and create a more custom, high-end feel.

6. Choosing the Wrong Paint Colors

The Mistake: Colors That Clash or Feel Dated

Paint is one of the most impactful elements in a room. The wrong shade—whether too stark, dull, or clashing—can instantly diminish a home’s appeal.

The Fix: Stick to a Cohesive Palette

Select a well-balanced color palette that complements your furnishings and the natural light in your home. Neutrals with depth (such as warm whites, greiges, and soft taupes) often create an elevated backdrop, while strategic accent colors add personality without overwhelming the space.

7. Not Styling Your Space

The Mistake: Empty or Overly Cluttered Spaces

A space without thoughtful styling can feel cold, while too many decorative pieces can create visual chaos.

The Fix: Thoughtful Layering & Curation

Invest in quality accessories like statement vases, layered textiles, and curated artwork to add depth and personality. Focus on a mix of textures and shapes to bring warmth while ensuring that each piece feels intentional rather than excessive.

Final Thoughts: Small Changes, Big Impact

Avoiding these common design mistakes doesn’t require a complete home renovation. With intentional updates, like improving lighting, mixing furniture styles, and adding architectural details, you can effortlessly elevate your space and create a polished, high-end feel. By making thoughtful design choices, your home will feel curated, inviting, and anything but cheap.