Design Supervision During a Flat Renovation in Prague

“We have a design, we have drawings. The builders are grown-ups, they’ll figure it out.” The thought is understandable: why pay again when everything is already drawn? Sometimes it really does work out — if you have plenty of free time, a financial cushion and nerves of steel.

But a design, however detailed, is only a set of instructions. Between the drawing and the finished flat lie hundreds of small decisions made right on site, often in five minutes and without you. If the author of the design is not there, they are made by whoever finds it most convenient. Let’s look at this more closely.

What it is, in plain terms

Design supervision (in Czech: autorský dozor) means that the designer who created your project accompanies the renovation: they visit the site at key moments, check the work against the drawings and help solve problems quickly when something does not go to plan.

The goal is simple: for you to get the interior you saw in the visualisation and paid for, not “something similar”.

Why builders drift from the design

Usually not out of bad intent. The reasons are almost always the same:

Habit. The crew works with materials they know. An unfamiliar plaster or a recessed skirting gets done “the usual way”, and the effect is lost.

“It’s just a detail.” A gap, the height of a socket or the direction of laying seem unimportant to the tradesman, yet the whole look depends on them.

Experience over paper. A tradesman with years of practice decides he knows better and does it his own way.

“Here’s an equivalent, it’s the same thing.” Swapping a material for something similar and cheaper. The difference often shows only when it is too late to change.

“Rarely, but now and then, we hear: thanks for the design, we’ll take it from here. Sometimes that works out. More often, though, things come up on site that are not visible on paper: a wall is more crooked than the survey showed, a material is temperamental, the kitchen arrived before the tiles. One wrong answer to a question like that, and the renovation drags on for weeks.”

IDP Studio

When the design meets reality

Even a perfect design runs into surprises on site. A wall turns out to be a couple of centimetres off, and the made-to-measure wardrobe no longer fits the niche. The ventilation duct ends up bigger, and the ceiling has to come down. A concealed door needs millimetre precision, and the gap was done “by eye”.

The designer solves these problems on the spot, before the crew moves on, and updates the drawings straight away. That way both you and the builders know exactly what has been agreed, and there are no disputes at the end.

When the designer needs to be on site

What matters are the stages after which a mistake can no longer be fixed without demolition:

Marking out walls and sockets, while everything is still open.

Ceiling framework and boxing-in, while the pipes and ventilation are still visible.

Dry-laying the tiles, before adhesive and grout.

Measuring for the kitchen and furniture on the finished walls, not from the plan.

Designer and tiler checking a dry layout of floor tiles against the drawing before laying them in adhesive

An uneven row of tiles spotted on day one is fixed in an hour. The same row after grouting means relaying the entire wall.

What design supervision includes

Site visits and checking the work against the drawings.

Choosing finishes together with you in showrooms, so the colour and texture match the design.

Answering the tradespeople’s questions and explaining how to work with unfamiliar materials.

Updating the drawings if something turned out differently on site.

Progress reports for you on how the renovation is going.

At the same time, the designer does not replace the site manager. Checking construction methods (waterproofing, screed, pipework) and organising the build remain their responsibility. In Czechia the site manager (stavbyvedoucí) is accountable for the quality of the work, and for independent oversight you can hire technical supervision (technický dozor).

Procurement: a separate service that takes away the biggest headache

Procurement means the designer takes over everything that needs to be bought for the renovation: from tiles and taps to lighting, doors and furniture. It is not part of supervision but a separate service ordered on top of it. Yet it is together that they work best.

What it includes:

A complete shopping list. Everything in the design gathered into one spreadsheet: with product codes, quantities and spares.

Sourcing and comparing offers. The designer requests prices, checks availability and lead times, and finds a replacement if an item has been discontinued.

A purchasing schedule matched to the renovation stages. Tiles must be on site before the tiler arrives, sanitaryware ready for installation, and made-to-measure furniture ordered in time for the finish.

Orders and delivery tracking. So everything arrives on time, in the right quantity and without substitutions.

Inspection on delivery. Colour, batch, completeness, defects. If something is wrong, the designer helps you file a claim (reklamace) with the supplier.

Designer checking delivered tiles and boxed furniture on site against a list before finishing work begins

Why does this matter so much? A renovation involves hundreds of items, and many of them take weeks to arrive, made-to-measure furniture and doors even longer. One forgotten or late order brings the whole crew to a halt. And tiles from two different batches can differ in shade so much that you notice it from the doorway.

What happens if you take it all on yourself

You can do without supervision and procurement. But it is important to understand honestly what that means, especially if you have never renovated before.

In effect, you become the project manager. On forums, these stories sound remarkably alike:

The phone never stops. The builders call ten times a day: “what height should this go at”, “this isn’t on the drawing”, “we’ve run out of material”. They need an answer now, in the middle of your work meeting.

Evenings disappear into shops and catalogues. Hundreds of items, dozens of suppliers, comparing prices and lead times. What a professional does in a few days takes a beginner months.

The crew stands idle. The tiles did not arrive, the doors were not ordered in time. The tradespeople move to another job and come back a few weeks later, and your renovation schedule slips.

Decisions under pressure. Choosing a tap in the shop in five minutes because the builders are waiting is a sure route to a purchase you later regret.

Arguments about “what we agreed”. Without someone who understands the drawings, it is hard to prove that something was not built to the design. But it is easy to receive an invoice for extra work (vícepráce) that was never in the budget.

The renovation becomes the topic of every dinner. Fatigue, stress, family arguments.

In the end, saving on supervision and procurement often turns into rework, downtime and unnecessary purchases — and above all, several months of your life spent on the building site instead of on work, family and rest.

“A design without supervision is like having a suit made to measure and leaving the fitting to a random stranger. We know best what was drawn and why, so we are the quickest to see where something has gone wrong on site. Meanwhile, the client calmly gets on with their life and comes to see the result.”

IDP Studio

In short

The design defines what your home will be like. Supervision makes sure it actually turns out that way, and procurement makes sure everything you need is there on time. A mistake caught in time is fixed in an hour; one found after the renovation takes weeks and tens of thousands of crowns.

Planning a renovation in Prague? Write to us, tell us about your flat, and we will help you figure out where to start.

Message us on WhatsApp