How Much Does Interior Design for an Apartment in Sofia Cost in 2026 and How Do We Help Our Clients?

How Much Does Interior Design for an Apartment in Sofia Cost in 2026 and How Do We Help Our Clients?

If you have bought an apartment in Sofia and are about to start a renovation, you have probably already started looking at interior design studios, furniture, tiles, kitchens, and all the other details that come with creating a new home.

And at some point, one question inevitably comes up:

“Okay, but how much will the interior design cost?”

This is one of the first questions we receive from clients, and it is completely understandable.

When you are renovating an entire apartment, your budget is divided between many different things – construction work, furniture, appliances, lighting, flooring, sanitary fixtures, materials and, of course, the interior design project itself.

The problem is that when you start comparing different interior designers in Sofia, you will find quite different prices.

One studio may charge €30/m², another €45/m², while a third may charge €60/m² or more.

That does not necessarily mean that one is “expensive” and another is “cheap”.

Very often, it simply means that the scope of the service is different.

That is exactly why at Cadabra Studio we do not want to present our packages simply as three different prices.

What matters more to us is to show you:

How do we actually help you with each package?

One client may only need a clear direction and a professionally developed concept.

Another may want a detailed project that their contractors can work from.

And a third may not have the time or desire to deal with the renovation every day and may prefer a much higher level of involvement from our side.

That is why we have created three different levels of service:

ESSENTIAL – €30/m²

PRO – €45/m²

SIGNATURE – €60/m²

And for clients who want us to remain involved during the actual implementation, we also offer author supervision – €1,000/month.

Let us show you what the real difference is.

How Much Does Interior Design for an Apartment in Sofia Cost in 2026?

Most interior design projects are priced per square meter.

At Cadabra Studio, our prices are:

To make this clearer, let’s take an 80 m² apartment as an example.

For ESSENTIAL:

80 × €30 = €2,400

For PRO:

80 × €45 = €3,600

For SIGNATURE:

80 × €60 = €4,800

These are the prices for the design project itself.

If you add three months of author supervision:

3 × €1,000 = €3,000

But the most important thing is to understand what is actually behind these numbers.

Why You Should Not Choose an Interior Designer Based Only on Price

Imagine that you are looking for interior design for an 80 m² apartment.

You receive two offers.

One is €2,400.

The other is €4,800.

At first glance, it seems logical to choose the first one.

But what exactly do you receive for that money?

If one offer mainly includes a concept and 3D visualizations, while the other includes detailed technical documentation, custom furniture, quantity schedules and involvement during implementation, you are not actually comparing two identical services.

That is one of the reasons why we believe that interior design price per square meter is only a starting point.

Much more important is knowing:

• how much work is included;
• which decisions will be made for you;
• how detailed the project will be;
• who will communicate with the contractors;
• what happens after the project is delivered;
• whether the designer remains involved during implementation.

These are the things that determine the real value of the service.

ESSENTIAL – €30/m²

“I want professional direction, but I can organize the renovation myself.”

ESSENTIAL is designed for people who want a professionally developed interior but are prepared to take care of a large part of the organization themselves.

And this is actually a very common type of client.

Maybe you have a contractor you trust.

Maybe you already have your own construction team.

Maybe you work with a furniture maker you know.

Or maybe you simply have enough time and want to organize everything yourself.

In that case, there is not much point in paying for services you are not going to fully use.

Our role with ESSENTIAL is to help you make the right decisions for the space itself.

We start with the most important question – how will the apartment function?

Where will the kitchen be?

Where will the sofa go?

How large should the dining table be?

Where will the wardrobes be?

How should the hallway be used?

Is there a way to create more usable space?

Is there enough room for everything you want to have?

Then we move on to the visual concept.

Which materials should we use?

Which colors?

How should wood, stone, textures and metals be combined?

How can we make the individual rooms feel like parts of one cohesive home?

This is the main benefit of this package.

You do not start your renovation with 50 different ideas from Pinterest.

You start with one clear concept.

You receive professional direction and know what the final result should be.

After that, you can organize the implementation yourself.

Who is ESSENTIAL suitable for?

For someone who:

• has their own contractor;
• has time to organize the renovation;
• wants a professional concept;
• wants to see their future home in advance;
• prefers to control purchases and contractors themselves.

Price:

€30/m²

For an 80 m² apartment:

€2,400

PRO – €45/m²

“I want the project to be detailed enough to actually be built.”

With PRO, it is no longer just about knowing what your home will look like.

We want to help you understand how it should actually be built.

That is the important difference.

A visualization can show a beautifully lit room.

But the contractor needs to know exactly where the lighting should be.

The furniture maker needs dimensions.

The electrician needs specific positions.

The plumbing specialist needs to know where the outlets are.

That is why with PRO, the project is developed with greater technical detail.

We look not only at what looks good, but also at how it will actually be implemented.

You now have a much stronger basis for working with:

• construction teams;
• electricians;
• plumbing specialists;
• furniture makers;
• installers;
• suppliers.

And this saves you from one of the more frustrating parts of renovation:

Having to explain the same thing to five different people.

Instead of:

“Well, the designer said there should be something like this here…”

you have the actual project.

And you can simply show them:

“This is exactly how it should be done.”

How do we help you with PRO?

We help turn the concept into a real basis for implementation.

We work on the functional layout.

We develop the visual concept.

We prepare the necessary technical information according to the scope of the project.

We plan the lighting.

We consider electrical points.

We develop the furniture.

We coordinate materials.

We prepare the solutions so that the different contractors can work according to one coherent concept.

Who is PRO suitable for?

For someone who:

• wants a detailed project;
• has their own contractor;
• wants to organize the renovation themselves;
• does not want to make technical decisions on the go;
• wants to reduce the risk of mistakes;
• wants a clear basis for working with contractors.

Price:

€45/m²

For an 80 m² apartment:

€3,600

SIGNATURE – €60/m²

“I want greater involvement and fewer things to depend on me.”

SIGNATURE is for the client who no longer wants simply a design project.

They want a more comprehensive approach to the entire process.

At this level, we look at the project not only as drawings and visualizations, but as a journey from the first idea to the actual home.

Because once the renovation starts, something unexpected almost always happens.

And that is completely normal.

On site, it may turn out that a wall is not exactly where we expected it to be.

A structural issue may appear.

A selected material may no longer be available.

The furniture maker may have a question.

The contractor may suggest a change.

And that is precisely when it is important that decisions are not made randomly.

Our role is to help ensure that these changes remain within the overall concept.

Not simply:

“That doesn't work – do something else.”

But:

“This cannot be done this way. Let's find another solution that preserves the idea of the project.”

That is the real difference.

How do we help with SIGNATURE?

We help you connect the different parts of the renovation.

Design.

Materials.

Furniture.

Lighting.

Contractors.

Details.

Implementation.

The goal is to avoid a mismatch between the beautiful visualization and what ultimately appears in your apartment.

Who is SIGNATURE suitable for?

For someone who:

• wants greater involvement from the studio;
• does not want to make every single decision themselves;
• wants a closer connection between design and implementation;
• cares about details;
• wants someone who knows the project in depth;
• prefers a more organized process.

Price:

€60/m²

For an 80 m² apartment:

€4,800

Author Supervision – €1,000/month

“I want the designer to be with me when the actual renovation begins.”

At this point, we are talking about something different from the design process itself.

Author supervision begins when the project needs to become reality.

And that is exactly when the real questions start.

“Was the outlet supposed to be here?”

“Is this niche large enough?”

“Can the cabinet be made this way?”

“What height should the lighting be?”

“This material is no longer available – what can we use instead?”

“Can this detail be executed differently?”

These are situations that cannot be completely avoided.

No matter how good the project is, the real site can always surprise us with something.

That is why at Cadabra Studio, author supervision is €1,000 per month.

We do not consider it simply “a few site visits”.

We consider it ongoing involvement in your project.

This includes site visits according to the stage of the renovation, monitoring key design decisions, communication with contractors regarding project-related questions, and assistance with issues that arise during implementation.

There is a difference between visiting a site once and saying:

“Everything looks good.”

and actually knowing the project, following its implementation and being able to react when a problem appears.

That is exactly why the service is charged on a monthly basis.

For example, if the renovation takes three months:

3 × €1,000 = €3,000

It is important to clarify that author supervision does not replace the construction manager or contractor.

We oversee the interior design aspect of the project and help ensure that the design decisions are implemented correctly.

What Is the Real Difference Between the Three Packages?

If we had to explain it very simply:

ESSENTIAL – “Show me the right direction.”

You want a professional solution, but you are prepared to organize the renovation yourself.

PRO – “Give me a project that my contractors can work from.”

You want more detail and a clear technical foundation.

SIGNATURE – “I want you to be much more involved in the process.”

You want greater involvement and a closer connection between design and implementation.

Author Supervision – “I don't want to be alone on site.”

You want the designer to remain involved during the actual renovation.

Which Package Is Right for You?

This is actually the question we would like you to ask yourself.

Not:

“Which is the most expensive package?”

And not:

“Which is the cheapest?”

But:

“How much help do I actually need?”

If you are someone who enjoys organizing everything yourself, ESSENTIAL may be more than enough.

If you want a detailed project and want your contractors to work from it, PRO is probably more suitable.

If you want greater involvement and a closer connection between the project and the implementation, SIGNATURE makes more sense.

And if you know that following the renovation will be difficult for you, author supervision can save you a great deal of time and stress.

Not Every Client Needs the Most Expensive Package

This is something that is important for us to say.

We do not believe that every client should choose SIGNATURE.

If you have time, your own contractor and the desire to organize the renovation yourself, there is no reason to pay for a service you do not need.

And the opposite is also true.

If you work a lot, travel, have no experience with renovations and know that you will not be able to follow all the details, then the cheapest project may not necessarily be the best choice.

It is individual for everyone.

That is why we prefer to first understand what you actually need, and then tell you which option we believe makes the most sense.

What Does the Client Actually Gain in the End?

This is perhaps the most important question.

You are not simply buying square meters of design.

You are not buying only 3D images.

You are buying solutions.

A solution for how to use the space.

A solution for how the materials work together.

A solution for where the lighting should be.

A solution for how the kitchen should be designed.

A solution for how to use the available storage.

A solution for how a particular detail should be built.

And at the higher levels – support in turning those decisions into reality.

That is the real value of interior design.

What If You Don't Know Which Package You Need?

That is completely normal.

We do not expect a client to understand technical documentation, elevations, custom furniture, lighting or author supervision.

That is our job.

You can simply send us information about your apartment:

• square footage;
• floor plan;
• photos;
• construction stage;
• what you want to change;
• approximate budget;
• when you are planning the renovation.

Then we can discuss what you actually need.

It may turn out that ESSENTIAL is completely sufficient.

PRO may be the more reasonable choice.

Or it may be that for your lifestyle, SIGNATURE + author supervision will save you much more time and stress.

Interior Design Should Solve Problems, Not Just Look Good

A beautiful interior is important.

But that is not the only thing we are looking for.

We want the kitchen to be comfortable.

The wardrobes to provide enough storage.

The electrical outlets to be where you will actually use them.

The lighting to work in everyday life.

The furniture to have the right dimensions.

The materials to work well together.

And all of it to be realistically buildable.

Because there is a huge difference between:

“It looks amazing in the visualization.”

and:

“It looks amazing and works beautifully in real life.”

The second one is the goal.

Conclusion

At Cadabra Studio, we believe there is no single right way to work with an interior designer.

There is the right approach for each individual client.

That is why we created different levels of involvement.

ESSENTIAL – €30/m²
For clients who want professional direction and are ready to organize the implementation themselves.

PRO – €45/m²
For clients who want a detailed project that their contractors can actually work from.

SIGNATURE – €60/m²
For clients who want greater involvement and a closer connection between design and implementation.

Author Supervision – €1,000/month
For clients who want someone from our team to remain involved in the project during the actual renovation.

If we had to summarize everything in one sentence:

The more of the process you want us to take on, the greater our involvement in your project becomes.

And what matters most to us is that at the end of the renovation, you do not simply get a beautiful apartment.

You get a home designed around you, your lifestyle and the way you actually use the space.

If you are planning to renovate an apartment in Sofia, send us the square footage, floor plan and a few photos of the property.

We will review the project and guide you toward the option that we believe makes the most sense for you.

Cadabra Studio – interior design and turnkey interior projects in Sofia.

Phone: 0878 401 201
Email: office@cadabra-studio.com

You don't need to know which package you need. You only need to know how you want to feel in your home. From there, we'll help you with the rest.