How much does a custom house design cost in Poland?

The short answer: from PLN 17,000

At our studio, a custom single-family house design starts at PLN 17,000. The final fee depends on the size of the house, the complexity of its form and structure, the character of the plot, and the scope of work — for example whether the commission also covers interiors or unusual technical solutions.

Before that number scares you off, it is worth seeing it at the right scale. Building a house today is an investment starting at around half a million złoty — the design, even a custom one, usually amounts to just 2–4% of the total. The difference between the cheapest option and a good design is, against the cost of the build, a fraction of a percent — often less than the fence will cost. Meanwhile, a single mistake that a good design would have avoided — a badly sited building, an oversized structure, services that need reworking — can cost a multiple of that entire difference. The design is not an expense sitting next to the investment; it is the decision about how wisely all the rest will be spent.

For comparison: an off-the-shelf catalogue design in Poland typically costs PLN 2,500–5,000, but it always requires a mandatory adaptation to the specific plot — several thousand złoty more — plus the cost of changes, which in practice almost always appear. The real price gap is smaller than the price lists suggest, and the difference in outcome far greater. We explain below when each option makes sense.

What the fee is made of

A house design is the work of a whole team, not a single person. Behind the architect stand the specialist engineers: a structural engineer who calculates the foundations, floors and roof structure, a building-services designer for water, sewage, heating and ventilation, and an electrical designer. Each of them produces their own documentation and takes professional responsibility for it, with their own licence and insurance.

As a rule of thumb, roughly one third of the fee goes to these specialist engineers — the largest share to the structural engineer, followed by the sanitary and electrical designers. The remainder covers the architect's work: analyses, the concept design, documentation, coordination of the whole team and handling the permit process.

Beyond the studio's fee, the client also pays external costs independent of the designer: a surveyor's map for design purposes, geotechnical soil tests, utility connection terms and administrative charges. It is worth asking about these upfront — a good studio will list them honestly before you sign anything.

What the architect does before a single line is drawn

Design work does not start with drawing — it starts with listening. The first meetings are a conversation about how you live and how you want to live: who gets up first, where you work, whether you cook together, whether your children will still live with you in ten years, what budget is realistic. From these conversations comes the functional brief — a list of rooms and the relationships between them, tailored to a specific family rather than a statistical client.

In parallel, the architect analyses the plot: the local zoning plan or planning conditions, orientation and sunlight, slopes, access, neighbours, existing trees, utilities. This is where the constraints emerge that no catalogue design knows about: maximum height, roof pitch, building lines, distances from boundaries. A well-read plot can save tens of thousands of złoty during construction — for instance by placing the house intelligently on a slope instead of paying for costly earthworks.

The concept: where the house is really created

The concept stage is the most important part of the whole process. The architect designs the layout and the massing of the house, then discusses them with you — usually over several iterations. We move walls, test variants, check the views from the windows and the path of the sun through the day. This is the only moment when changes cost nothing; on the building site, every one of them means real money.

The result is a set of floor plans, a massing model and visualisations that let you see the house before it exists. Only once the concept is approved do the specialist engineers begin their work — so the structure and services are designed for the final version of the house, not patched up after changes.

From concept to building permit

The approved concept becomes documentation: the site development plan, the architectural and construction design, and the technical design with structure and services. Throughout this stage the architect coordinates the whole team — checking that the chimney does not land in a bedroom, that a beam does not cut across a window, that the ventilation ducts have somewhere to run. This coordination is invisible in any price list, yet it is what makes everything fit together on site.

Then come the formalities: obtaining utility connection terms, approvals, preparing the building permit application and responding to any requests from the authorities. The client signs the documents — the studio handles everything else. From signing the contract to filing the permit application usually takes a few months, most of which is precisely the work you never see.

Catalogue design or custom design?

A catalogue design makes sense when the plot is flat, wide and unconstrained, and a house found in a catalogue genuinely matches your needs — without alterations. In practice this is rare: the adaptation, layout changes and adjustments to the zoning plan and the plot can consume several thousand złoty or more, and the result is still a compromise designed for someone else.

A custom design wins wherever the plot is difficult — narrow, sloping, or with a view worth capturing — or where the household's needs differ from the standard: working from home, two generations under one roof, a workshop, a single-storey house to grow old in. A house designed from scratch for a specific plot and a specific family simply works better — every day, and for decades.

The design is a fraction of the construction cost

Construction cost depends above all on the size of the house and the standard of finish: a smaller, economically designed house in Poland today realistically means a budget of around PLN 500,000–700,000, a mid-sized house typically PLN 700,000 to a million, and larger, higher-standard homes go beyond that. Whichever bracket you fall into, a custom design usually amounts to 2–4% of the total investment — the bigger the budget, the smaller the design's share. And it is at the design stage that the decisions with the greatest weight are made: a simple or a sculpted form, an economical structure, well-thought-out services, a house that works with its plot instead of fighting it.

A custom design is therefore not a luxury for the wealthy — on a tight budget it can be the most important tool for keeping that budget under control, because it is the architect who makes sure every square metre earns its keep and the house fits your means at all. A good design can save a multiple of its own price during construction — and keeps saving every day afterwards, through heating bills and a layout that never needs remodelling. If you are planning to build a house in Chojnice or anywhere in Pomerania, come and talk to us: we will show you our built work, walk you through the process and help you assess your plot's potential before you commit to anything.