Renovate or Build a New House?

A Guide to a Decision That Will Affect the Next Decade of Your Life

For the past fifteen years, at FILKORN, we have guided hundreds of families and businesses on a journey that begins with a single question: "Should we renovate what we have, or start from scratch?" It's not just a question of money. It's a question of time, emotions, the memory of places, energy efficiency, and sometimes even family psychology. This guide is everything we've learned about making this decision.

Let's Start with the Story of Two Families

In the same week of 2024, we received two similar emails.

The first came from Mrs. Lucia - a young family with two children who inherited a three-room apartment from 1978 in Petržalka. The area is 78 m², original core, aluminum windows, panel walls. Lucia wrote: "We'd love to tear everything down. But my entire childhood room is there. My father still lived here. I don't know."

The second email came from Mr. Marek - an IT entrepreneur who, with his wife, bought a 600 m² plot near Slnečnice. They previously lived in a rented apartment for 12 years. Marek wrote: "My wife wants to build a new house. I'd rather buy an older villa in Koliba and renovate it. Can you help us decide?"

Both families received completely different recommendations. Lucia eventually did a complete renovation of the apartment - and after 11 months, she had a home that looked new but with a soul. Marek and his wife began the construction of a new turnkey house - with energy class A0, which now saves them €2400 annually on heating.

Why completely different answers for seemingly similar situations? Because this decision is never just about square meters and euros. Let's unpack together what truly matters.

1. Why This Decision Is Harder in 2026 Than Ever Before

Ten years ago, we would have told you a clear rule: "If the house has a good foundation, renovate. If not, build anew." However, in 2026, all variables have changed simultaneously:

• The prices of building materials in Slovakia have increased by 60-90% since 2020, depending on the category. Brick and concrete have not disappeared but have stabilized at a high level.

• Labor costs have risen even more significantly - skilled craftsmen (carpenters, electricians, heating engineers) are scarce, and their daily rates have increased by 40-70%.

• Energy requirements have tightened. Since 2021, all new buildings must meet energy efficiency class A0. This means triple glazing, recuperation, heat pumps - costs that often don't make sense to retrofit in an old house.

• Building permits have dramatically accelerated after the reform at the end of 2024, but have also tightened on technical documentation. In renovations, you can no longer "slightly move partitions without notice."

• Mortgage interest rates have stabilized around 4.3-4.9% p.a. - this fundamentally changes the long-term calculations of both scenarios.

In short: a decision that was a matter of intuition ten years ago now requires real calculation. And this is exactly what we will focus on in the following lines.

2. Seven Questions You Must Answer Before Deciding

Before you get to price quotes, sit down with your family (or partners) and honestly answer these questions:

Question 1 - What is the technical condition of the property?

Structural integrity of load-bearing structures, moisture in the foundations, condition of the roofing, electrical installation, water and heating systems. If your property is older than 40 years, never start a renovation without an independent construction-technical assessment (300-500 €). This money is the best investment in the entire process.

Question 2 - What is the sentimental attachment to this place?

This is not a trivial question. Lucia from our story couldn't demolish her father's apartment - and we completely understood. Home is more than m². If you have deep emotional ties to the place, renovation can be a way to preserve the soul while changing the shell.

Question 3 - How much time do you realistically have?

• Complete apartment renovation (60-100 m²): 4-8 months

• Complete family house renovation (150-200 m²): 8-14 months

• Construction of a new turnkey family house: 12-18 months (after obtaining a building permit, which itself takes 2-4 months)

Renovation paradoxically may not be faster - uncovering problems in the walls often extends the deadline by 20-30%. New construction has a more linear timeline.

Question 4 - Where will you live during the work?

When renovating a family house you live in, prepare for 6-12 months in a rental or with parents. This is often a hidden 1500-3000 € monthly cost that is forgotten to be included in the calculations.

Question 5 - What are the long-term goals?

Will you stay in this house for 5 years, 15 years, or forever? Short-term living favors renovation. Long-term living and generational value favor new construction - due to energy efficiency and longevity.

Question 6 - What are your energy ambitions?

Renovation can achieve class B or A1 with massive insulation and replacement of heat sources. Class A0 (passive house) is extremely difficult to achieve during renovation and usually at an unreasonable cost. If your goal is a house with zero energy footprint - build new.

Question 7 - What is your tolerance threshold for uncertainty?

No matter how it sounds, this may be the most important question. Renovation has a high share of hidden surprises - when a craftsman calls you in July to say that the wall they were only supposed to sand crumbled upon tapping because it had been held together for thirty years by mere chance. New construction is more predictable, but not without risk.

3. The Real Cost of Renovation in 2026 - Without Decorative Numbers

These are the real prices that we and higher-quality suppliers work with in the Bratislava market and surrounding areas. These are prices including material, labor, and VAT:

Real examples from the last season:

• Petržalka apartment 78 m², complete renovation (Lucia's case): 102,000 € (1308 €/m²)

• 3-room city apartment in the Old Town, standard: 56,000 € (~750 €/m²)

• Villa in Karlova Ves, premium renovation 180 m²: 410,000 € (2278 €/m²)

Always add these hidden items, which are often missing in offers from cheap companies:

• Dismantling and waste removal: 3-6% of the price

• Handling hidden structural/plumbing surprises: reserve at least 15-20%

• Living costs during work: 8-25,000 €

• Project + permits (if changing layout): 2-5% of the price

At FILKORN complete renovations we always work with a fixed price offer and a standard reserve of 12% - if hidden problems turn out to be bigger, we talk to you openly about it before the investment proceeds further.

4. The real cost of new construction in 2026 - from land to key

For new construction, the calculation is divided into four components that are often underestimated or forgotten.

a) Land

Prices of building plots around Bratislava in 2026 (1000m²):

• Slnečnice / Petržalka area: 250,000 - 400,000 €

• Stupava / Marianka / Záhorská Bystrica: 180,000 - 320,000 €

• Pezinok / Modra / Svätý Jur: 130,000 - 240,000 €

• Senec / Veľký Biel: 100,000 - 200,000 €

b) Turnkey construction (raw + finished)

Real example: family house 160 m² of living space, energy class A0 in Stupava (Marek's case):

• Land 800 m²: 220,000 €

• Turnkey construction: 380,000 € (~2375 €/m²)

• Project + permits + utilities: 28,000 €

• Garden, terrace, fencing: 22,000 €

• Total: ~650,000 €

c) Infrastructure and permits

• Building permit + project + engineering: 15,000 - 35,000 €

• Connections (water, gas, electricity, sewage): 8,000 - 25,000 € depending on distance

d) Garden, fencing, access road

An easily forgettable item that can be 20,000 - 50,000 €. Beautiful landscaping makes a house truly a home.

At FILKORN, we offer comprehensive construction of houses and buildings including design and engineering preparation - it's one contract, one general contractor, one guarantee of deadline and price.

5. How the Petrovs and Kováčs decided

Let's return to the stories from the beginning - with clarified math.

Lucia (Petržalka, apartment 78 m²)

Original parameters: apartment in a panel building from 1978, healthy load-bearing walls, panel construction in good structural condition, but completely outdated core, electrical installation from the 80s, aluminum windows, original floors.

Options:

• A - Sell and buy a new apartment in a new building: 78 m² × 4200 €/m² = 327,600 € + commissions + moving + VAT-shock ≈ 380,000 €

• B - Complete renovation: 102,000 € + 9 months in rental (12,600 €) = 114,600 €

Decision: B. Saved 265,000 €, preserved urban location, and we also did an interior design for her as part of the renovation - because a mere rough renovation without thoughtful design would only give her «plain white walls». Today, that apartment is a home that won an interior design award in a Slovak competition in March 2025.

Marek and wife (plot near Slnečnice)

Original parameters: purchased plot 600 m², initially considered buying a villa in Koliba for 720,000 € with a need for renovation ~250,000 €.

Options:

• A - Villa in Koliba + renovation: 720,000 + 250,000 = 970,000 € for 180 m² of living space in a house from 1962, energy class max B

• B - New house on the plot they already had: 380,000 € construction + 50,000 € exterior + 28,000 € project = 458,000 € for 160 m² of living space, energy class A0

Decision: B. Saved 512,000 €. Their monthly energy costs are 200 € lower than they would be in the old villa. Their house is now a reference project that we show to clients considering construction.

Conclusion of both stories: the same level of quality of life, two completely different economic scenarios, two different emotional situations. There is no universal rule.

6. Specific perspective for B2B - developers, investors, and offices

If you are not reading this article as a private individual, but as a developer, fund, or corporate real estate manager, your decision-making grid looks different. More important to you are these variables:

For developers:

• Reconstruction of historical buildings in the center - economically advantageous when you have a property with parking bought at a good price and regulations push for facade preservation. The premium value per m² after reconstruction can be significantly higher than in new buildings in suburban areas.

• New construction of a residential or multifunctional building - when you have a plot of 1500+ m² with functional use and a stable target group. Lower operating costs, longer lifespan, better ROI over a ten-year horizon.

For offices and corporate spaces:

• Reconstruction of office spaces is almost always more economical unless you are considering a radical change in layout. ROI in terms of brand image and employee productivity is usually significantly positive.

• When investing in your own operational spaces, don't forget about depreciation strategies - a tax advisor should be at the meeting even before the architect.

At FILKORN, we implement B2B construction and reconstruction projects - from office spaces for IT companies in Karlova Ves to showrooms for the automotive sector. Always with one contact person for the entire project.

7. What our process looks like when you choose FILKORN

Whether you ultimately choose reconstruction, new construction, or a combination - the process we guide you through is almost the same because we care mainly about the result, not the methodology.

Phase 1 - Free initial consultation (90 minutes)

Send us photos, a plan (if it exists), or a sketch on a napkin. At the initial meeting - either in our showroom in Bratislava or directly at your place - we talk not only about the space but also about your life. How many of you are there, how you cook, how you work from home, where you like to sit on Sunday afternoons. These details determine the layout.

Phase 2 - Entry analysis and concept

For reconstruction, we arrange a technical assessment (3-5 days). For new construction, we discuss the plot, regulations, and your vision. The output is a concept in 3D visualization + an indicative budget that will never surprise you by more than 12%.

Phase 3 - Detailed project and fixed price offer

After approving the concept, we prepare the implementation project documentation + a precise price offer with a budget item by item. Here you decide with firm numbers in hand - not with feelings.

Phase 4 - Implementation with one contact

Our project manager is your only contact throughout the implementation. No "better call the plumber directly, he will tell you better". Weekly reports with photos from the implementation, bi-weekly control meetings.

Phase 5 - Interior design and implementation

Even when everything is structurally sound, a house or apartment is an empty shell until you furnish it. Our interior designers work in parallel with the construction team - which means that when the rough construction is handed over, the kitchen and wardrobe are already in the production process. This saves 6-10 weeks of time.

Phase 6 - Handover and 24-month service

After handover, we don't leave you. For two years, we handle all minor completions, complaints, and questions. Live, don't worry.

And now specifically - how to decide tonight

If you've read this far, you probably have enough information in your head, but little clarity. Try answering these three final questions:

1. What emotions does the thought "we'll tear it down and build anew" evoke in you?

If relief - you probably need a new building.

If sadness - you probably need a renovation.

2. What is the difference between your current living situation and your idea of an ideal home?

If it's the layout (openness, light, terrace) - renovation might be the solution.

If it's the location, area, or energy efficiency - a new build becomes a necessity.

3. How much will it cost you to do nothing?

This is often a forgotten question. Another 5 years in an unsuitable apartment, with rising energy costs and decreasing property value, is also a price tag. Sometimes not lower than the path forward.

We will help you decide - and then guide you to your goal

At FILKORN, we don't have a simple answer to your situation until we see it up close. That's why our initial consultation is free and without obligation. We'll spend 90 minutes together, go over the options, show you our previous projects (renovations and new builds), and you'll leave with a clear picture - regardless of whether you decide to continue with us.

Free consultation in Bratislava or at your place → Contact FILKORN

Or check out what we do:

Comprehensive renovations - apartments, houses, offices, and commercial spaces

Construction of houses and buildings - turnkey family homes, multifunctional buildings, office buildings

Interior design and implementation - from concept to final touch details

We have 15 years and 400+ completed projects in Bratislava and the surrounding area behind us. Each one started somewhere - sometimes with a floor full of memories, sometimes with a plot full of mud. It always ends with a home you return to with a smile.

We look forward to meeting you.

- The FILKORN Team