6 Interior Design Mistakes We See (and How to Avoid Them)

Written By : Edgehill

Great interior design isn’t about having a Pinterest-perfect home. It’s about creating a space that feels effortless, functional, and very you.

Interior design mistakes aren’t always obvious when you’re making them. After countless design consultations across the South Okanagan, we’ve noticed the same patterns popping up again and again. The good news is that most design mistakes are completely avoidable once you know what to watch for.

Here are the six biggest design mistakes we see (and exactly how to avoid them):

 

1. Buying Everything at Once

We get it. You move in, you want it done, and suddenly you’ve panic-purchased an entire matching furniture set.

The unfortunate result is a space that feels more like a showroom than a home.

 

The fix:

Great interior design is layered. Start with the key pieces (usually the sofa and rug), then build over time with lighting, textiles, art, and personality. This is exactly what we map out during a professional design consultation.  That way you don’t waste money on pieces you’ll replace later.

 

2. Relying Only on Overhead Lighting

Poor lighting is one of the most common design mistakes, and it dramatically impacts how your home feels and functions.

Lighting is technical and often misunderstood. People focus on fixtures (which are visible) but forget about the actual light quality and layering. The result is spaces that might have pretty fixtures but terrible actual lighting.

 

The fix:

Think in layers. Every room needs three types of lighting:

  1. Ambient lighting – Overall illumination (recessed lights, chandeliers, ceiling fixtures)
  2. Task lighting – Focused light for specific activities (under-cabinet lights in kitchens, vanity lights in bathrooms, reading lights by beds)
  3. Accent lighting – Highlighting features and creating mood (picture lights, display lighting, decorative fixtures)

At Edgehill Homes, comprehensive lighting plans are included in our design process. We map out every fixture, switch location, and ensure you have the right light in the right places.

 

3. Ignoring Scale and Proportion

Scale and proportion issues make spaces feel “off” even if you can’t immediately identify why.

Furniture that’s too large for the room, making spaces feel cramped. Tiny light fixtures that disappear in large rooms. Art hung too high or too small for the wall.

It’s hard to visualize scale when you’re shopping. Without understanding basic proportion rules, it’s easy to make sizing mistakes that impact how your space feels and functions.

 

The fix:

Know your measurements. Before shopping for anything, measure your space and understand what will actually fit. Tape out furniture dimensions on the floor to visualize scale.

Follow proportion guidelines:

  • Chandeliers over dining tables should be 1/2 to 2/3 the width of the table
  • Rugs should be large enough that furniture sits at least partially on them
  • Art should occupy 2/3 to 3/4 the width of the furniture below it

Use 3D visualization. This is why we provide 3D renderings and detailed plans—so you can see how things will look in actual space before building.

 

4. Choosing Finishes in Isolation (Instead of as a Cohesive Whole)

It’s easy to choose finishes one at a time based on what looks good individually. Maybe you fall in love with a stunning marble countertop. Then you find the perfect floor tile. You’ve picked paint colours you adore. But when everything comes together… it doesn’t quite work. 

Interior design isn’t about individual elements.  It’s about how everything works together as a whole.  Each decision exists in relation to others. When you make decisions in isolation, you risk creating a space that feels disjointed rather than designed.

 

The fix:

Create a design board. Before committing to anything, collect samples of everything that will be in the space together (flooring, countertops, cabinetry, paint colors, tile, hardware). Lay them out side by side and see how they interact.

Consider the big picture. Ask yourself: Do these finishes tell a cohesive story? Is there a clear style direction? Do the tones work together? Are you mixing too many competing patterns or textures?

Work with a designer. This is exactly what interior designers are trained to do; see how individual elements work as a whole and ensure everything harmonizes.

At Edgehill Homes, our design process includes creating comprehensive design boards for exactly this reason. We want you to see how everything works together before installation begins, not after.

 

5. Choosing Interior Design Trends That Date Quickly

Trends are seductive. They’re everywhere on social media, in magazines, and in show homes. When everyone’s doing something, it feels safe and current.

The problem is that trends, by definition, fade. What’s cutting-edge today can look dated in just a few years. And in a custom home that you’ve invested significantly in, that’s not ideal.



The fix:

Understand the difference between trends and personal style. Ask yourself: Do I genuinely love this, or do I love it because I’ve seen it everywhere recently? Will I still love this in 5 years? In 10?

Use trends strategically. It’s okay to incorporate current trends, just do it in ways that are easy to change. Trendy paint colors? Fine. Paint is changeable. Trendy tile throughout your entire home? That’s a much bigger commitment.

Invest in timeless foundations. For big-ticket, hard-to-change elements (cabinetry layout, flooring, countertop materials), choose classic options that have proven staying power. Save trendier choices for accents, accessories, and easy-to-update elements.

 

6. Not Planning for Real Life 

We’re all influenced by aspirational design images that show perfect homes with zero signs of actual life. No mail on the counter. No shoes by the door. No evidence that real people with real routines live there.

Your home needs to support your actual life, not some idealized version that doesn’t exist. Learn more about intentional design here

 

The fix:

Be honest about how you live. Do you have kids? Pets? Do you cook messy meals? Do sports equipment and gear come through your door daily? Does your family naturally accumulate clutter? Design for your reality.

Prioritize function first, aesthetics second. This doesn’t mean your home can’t be beautiful.  It absolutely can. But beauty should never come at the expense of livability.

Plan for storage. Everything you own needs a home. If you don’t plan adequate storage, clutter will accumulate in visible spaces. Be realistic about how much storage you actually need.. then add 20%.

And choose materials appropriately:

  • High-traffic areas need durable flooring (tile, luxury vinyl, or sealed hardwood—not delicate materials)
  • Kitchens used for actual cooking need practical countertops and easy-to-clean backsplashes
  • Mudrooms need storage that handles your actual volume of stuff
  • Family rooms with kids need fabrics that can be cleaned


Ready to Design Your Home Right the First Time?

Whether you’re planning a custom home in the Okanagan or redesigning spaces in your existing home, professional design expertise makes all the difference.

At Edgehill Homes, our comprehensive design services ensure you avoid these common mistakes while creating spaces that are uniquely yours. Beautiful, functional, and built to last. 

We’re here to guide you toward choices you’ll love for years to come.

Reach out today and let’s design something exceptional together.

 


Edgehill Homes has been building custom homes in the Okanagan for over 15 years. We believe every home should tell a story and we’re here to help you tell yours.