Repair

Design supervision: why it saves money and stress during a renovation

Arch. Katerina Taneva7 November 20264 min read
In short

Design supervision is the designer's control over the works – the architect or interior designer visits the site and checks that everything is built exactly to the design. They answer the contractors' questions, solve unforeseen problems on site and approve samples and details. That way mistakes are caught before they become expensive. It differs from construction supervision, which controls the legality and safety of construction.

The best design can fail in execution. The contractor puts the socket “a little further along”, the tiles are laid from the other end, the kitchen turns out 3 cm wider than the niche. Each of these small mistakes costs money and time. Design supervision is the way to turn the design into reality exactly as intended.

What design supervision is

Design supervision is the monitoring of the works by the author of the design – the architect or interior designer. They know every detail and why it was solved in a certain way, so they are best placed to judge whether the work is right and how to solve a problem without spoiling the concept.

Working drawings and a visualisation on a site under renovation
During supervision the design is checked against the site – wall by wall.

What design supervision includes

  • Site visits at the key stages of the renovation.
  • Checking against the design – electrical and plumbing points, dimensions, levels, positions.
  • Answers to the contractors' questions – on site or by phone.
  • Solutions for unforeseen situations – uneven walls, hidden installations, changes in material availability.
  • Approval of samples – tiles, parquet, paints, veneers, fabrics.
  • Control of custom furniture – final measurement and installation.
  • Final inspection – a snagging list before handover.

Design and construction supervision – what is the difference

Design supervisionConstruction supervision
Who carries it outThe designer – architect or interior designerA licensed construction supervision company
What it controlsCompliance with the design – look, details, qualityLegality, safety, structure, documents
When it is mandatoryFor buildings under the Spatial Development Act – at the client's discretion for interiorsFor buildings requiring a permit, according to the category

How design supervision saves money

  1. Mistakes are caught early. A misplaced plumbing outlet is corrected in an hour before tiling. After tiling – in days, with wasted material.
  2. No improvisation. When the contractor isn't sure, they ask the designer rather than deciding alone.
  3. The right orders. Custom furniture is measured and ordered at the right moment.
  4. Less wasted time. Teams don't wait for each other or redo work.
  5. Protecting your investment. You paid for a design – supervision makes sure you get exactly that.
Checking the installation of a custom kitchen with a tape measure
Installing custom furniture is one of the key moments for checking.

When and how many visits are needed

The number of visits depends on the scale of the renovation. In a full apartment renovation the key moments are:

  1. Start – setting out walls, electrical and plumbing points.
  2. After the installations – before the walls are closed.
  3. Before tiling – tile layout and levels.
  4. Suspended ceilings and lighting.
  5. Final measurement for custom furniture.
  6. Installation of the kitchen and furniture.
  7. Final inspection and snagging list.

More about the stages in the article Apartment renovation: the right order of stages.

When design supervision is mandatory

For buildings that require a building permit, design supervision is mandatory under the Spatial Development Act. For an interior apartment renovation it is not mandatory, but it is strongly recommended for a full renovation, custom furniture and complex details.

A finished interior with precisely executed details
The result of good supervision: the details look exactly like the visualisation.
“The design is a promise. Design supervision is how we keep it.” – Arch. Katerina Taneva

See in detail what is included in design supervision at DOMO and how we work from the first meeting to moving in. If you are planning a house, read also about house design.

Frequently asked questions

What is design supervision?

The designer's control over the works – site visits, checking against the design and solving problems on site.

Is design supervision mandatory for an apartment renovation?

It is not mandatory for an interior renovation without structural changes, but it is strongly recommended for a full renovation.

How many visits does design supervision include?

It depends on the scale. For a full apartment renovation there are usually 6–8 visits at the key stages.

Is supervision included in the price of the design?

It is usually agreed separately – as a fixed fee or according to the number of visits.

What is the difference between design supervision and construction supervision?

Design supervision checks compliance with the design, while construction supervision checks the legality and safety of the construction.

Want the renovation to look exactly like the design? We take on the supervision too.

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Arch. Katerina Taneva
Arch. Katerina TanevaArchitect and founder of DOMO. Member of the Chamber of Architects in Bulgaria, with more than 15 years of practice and 150+ completed projects.
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