Want to design your dream interior yourself but don’t know where to start?

Maybe the thought of not having experience scares you.
Or perhaps you’re worried about making costly mistakes?

Don’t worry!
You don’t need to be a professional architect to create a space that’s beautiful and functional.
In this guide, I’ll show you step by step how to design an interior you’ll love and share the trends that will dominate in 2025.

Ready? Let’s get started!

What is Interior Design?

Interior design is the process of creating spaces that are not only aesthetically pleasing but also functional and tailored to the users' needs.

It’s about combining room layouts, colors, furniture, lighting, and accessories into a cohesive whole that works in daily life.

It’s more than choosing nice cushions or wall colors.
It’s an art that requires an understanding of space, ergonomics, and the preferences of the people who will use it.

Interior design includes:

• Creating functional layouts – arranging furniture for maximum comfort and convenience.
• Selecting colors and materials – to make the space cozy or modern.
• Technical solutions – like proper lighting or storage solutions.

That’s why many people planning to furnish their homes or apartments turn to experts offering interior design services.

What Does the Interior Design Process Look Like?

Interior design is a process consisting of several stages, each crucial for ensuring the final result meets the user’s expectations.

Here’s a step-by-step overview:

1. Understanding the Client’s Needs

The designer asks questions to understand what you want from your interior:

• What functions should the space serve?
• How many people will use it?
• What style do you like?

Example:
If you have a small apartment, the priority will be smartly utilizing every inch of space.

2. Creating a Concept

This stage involves drafting an initial design, including:

• Furniture layouts, colors, styles, and inspirations.
• Mood boards and visualizations to help you see how the interior will look.

3. Technical Design and Details

This is where detailed plans come to life:

• Placement of outlets and light fixtures.
• A list of materials, furniture, and decorations.

This phase is key to ensuring everything is measured and planned correctly.

4. Project Execution

Time to bring the plan to life!
If you’re using interior design services, the designer may oversee the renovation and arrangement to ensure everything matches the plan.

1. How to Start Designing an Interior

Before buying anything (even a cushion!), think about:

• How will you use this space? (e.g., relaxing, working, cooking)
• How many people will use it? (e.g., family, kids, pets)
• What are your daily needs, and what bothers you about your current interior?

Example:

If you have small children, choose easy-to-clean fabrics and avoid sharp edges in furniture.
If you work from home, plan a dedicated work corner with good lighting.

Define Your Budget

Most people start shopping without checking their budget first. Avoid this mistake!

Decide where you want to allocate the most funds:

1. Furniture? Invest in items like a sofa you’ll use daily.
    
2. Finishes? If your floors and walls are sturdy, other elements can be updated later.
    

Tip:
Write down your priorities in a list. This will help you avoid blowing your entire budget on minor items.

2. Step-by-Step Interior Planning

Start with Inspiration

Browse Pinterest, Instagram, or interior design shows. Save anything that appeals to you—colors, layouts, furniture.

But don’t copy everything exactly. Inspiration is meant to help you discover your style.

Create a Room Layout

Grab a pen and paper (or use free apps like Room Planner) and sketch the room. Indicate:

• Where doors and windows are located.
• The furniture you want to include and its placement.

Pro-Tip:

Don’t overcrowd the room. Ensure at least 60 cm of free space between furniture pieces for comfortable movement.

Choose Colors and Materials

Colors significantly affect how you feel in a space.

Rules for Choosing Colors:

• Light colors (white, beige, pastels) visually enlarge small spaces.
• Dark colors (navy, forest green) add coziness but work better in larger rooms.

Follow the 60-30-10 rule:

• 60% main color (e.g., walls).
• 30% complementary color (e.g., furniture).
• 10% accents (e.g., cushions, decorations).

Trending Materials:

• Natural and recycled wood.
• Linen and cotton.
• Stone, e.g., marble.

Add Lighting

Lighting often gets overlooked, but it sets the mood of the space.

Types of Lighting to Include:

• Main light – e.g., ceiling lamp.
• Task lighting – e.g., desk lamp.
• Accent lighting – e.g., LED strips behind the TV.

Focus on Details

It’s the finishing touches that make a space feel complete.

Must-Have Additions:

• Textiles – rugs, curtains, cushions.
• Plants – they bring life to any interior.
• Decor – artwork, candles, books.

But don’t overdo it! Minimalism is in style, so avoid clutter.

3. 2025 Interior Design Trends

1. Earthy Colors and Nature

Shades inspired by nature—greens, browns, beiges—will dominate. Pair them with natural materials like wood, linen, and rattan.

2. Multifunctional Spaces

With more people working from home, spaces combining multiple functions will be trendy.

Example: A living room with a hidden desk or a bedroom with a meditation corner.

3. Retro with a Modern Twist

Velvets, geometric patterns, and colors like mustard yellow or navy are making a comeback.

4. Minimalism and Personalization

Fewer things, more space. Each item has a story and reflects the owner’s personality.

Summary

Interior design is an adventure that requires some time and effort but brings incredible satisfaction.  

Remember:  

- Start with a plan.  
- Stick to your budget.  
- Focus on functionality and your needs.  

In 2025, trends will emphasize nature, multifunctionality, and personalization—elements you can incorporate into your project.  

Why Hire a Professional Interior Designer?

Thinking about designing your interior yourself? 

That’s great!

But here’s what you gain by working with an expert:

1. Time and Stress Savings

Designers know how to handle the process quickly and efficiently. No need to search for materials, negotiate with contractors, or worry about mismatched elements.

2. A Professional Eye

A designer can:

• Improve the functionality of your space.
• Suggest durable, high-quality materials.
• Recommend practical yet stylish solutions.

3. Budget Optimization

Hiring a designer can save you money by avoiding costly mistakes and unnecessary purchases.

4. Access to Unique Solutions

Designers have access to suppliers, manufacturers, and contractors you might not reach on your own.

5. The “Wow” Factor

A professional will create a space perfectly tailored to your lifestyle and one that leaves a lasting impression.

FAQ - DIY Interior Design

What is interior design?

Interior design is the process of creating spaces that are both aesthetically pleasing and functional, tailored to the needs of the users. It involves the harmonious combination of room layouts, colors, furniture, lighting, and accessories to create a cohesive and comfortable place for everyday living.

Do I need to be a professional architect to design my own interior?

No, you do not need to be a professional architect. With the right guidance and planning, you can handle interior design yourself. A step-by-step guide can help you achieve your desired effect without the need for specialized knowledge.

What are the main stages of the interior design process?

The interior design process consists of several key stages. First, it is necessary to understand the client's needs, comprehend their expectations and the functions of the room. Then, a concept is created by developing an initial design with the layout of furniture, colors, and styles. The next step is to prepare the technical project and details, such as the placement of light points or a list of materials. The final stage is the implementation of the project, which involves putting the plan into action and overseeing renovation work and interior arrangement.

Where to start with interior design?

The first step in interior design is to define your needs. You should consider what functions the space should serve, how many people will use it, and what style you prefer. Another important element is determining the budget to know where to allocate most of the funds.

How to set a budget for an interior design project?

Before starting purchases, it is worth deciding how much can be spent on various elements of interior design. Invest in furniture that is used most frequently, such as a sofa, and in durable finishes for floors and walls that allow for future changes. Creating a list of priorities will help avoid spending money on less important items.

How to plan an interior step by step?

The first step in interior design is gathering inspiration from various sources, such as Pinterest, Instagram, or interior design programs. Then, create the room layout, taking into account doors, windows, and furniture placement. The next stage is choosing colors and materials according to the 60-30-10 rule and considering different types of lighting. Finally, add details such as textiles, plants, and decorations, ensuring moderation.

What are the interior design trends for 2025?

In 2025, earth colors and nature-inspired hues, such as greens, browns, and beiges, combined with natural materials will dominate interior design. Multifunctional spaces that combine different functions, for example, a living room with a desk, will also be popular. The retro trend in a modern twist, including velvets, geometric patterns, and colors such as mustard yellow and navy blue, will also be on top. Minimalism and personalization, where fewer items mean more space and each item has its own story, will be important elements of interior design.

Why should you hire a professional for interior design?

Hiring an interior designer brings many benefits. A professional saves time and reduces stress by managing the entire design process. With their professional eye, the interior will be functional and aesthetically pleasing, and optimal budget use will help avoid unnecessary expenses. Additionally, designers have access to unique solutions and contacts with suppliers and contractors, which often translates into a “wow” final effect.

What materials are trendy in interior design for 2025?

In interior design for 2025, natural and recycled wood, fabrics such as linen and cotton, and stone, for example, marble, will be fashionable. These materials add warmth and a natural character to interiors, fitting into the trends of earth colors and nature.

What color selection principles are worth applying in interior design?

When designing interiors, it's worth applying the 60-30-10 rule. This means that 60% of the space should be covered by the main color, for example, walls; 30% is the complementary color, like furniture; and 10% is for accents, such as pillows or decorations. Light colors visually enlarge the space, while dark colors add coziness to larger rooms.

I hope these answers will help you in DIY interior design!