Design supervision: what it is and why it matters on site

What design supervision is — the short answer

Design supervision at ARTEVRIKA means overseeing how an approved interior design project is carried out on site. The designer and the design-supervision engineer regularly check the construction site against the drawings, elevations, details and specifications, so that the finishing works and engineering solutions don't distort the original concept: the layout, the geometry, the materials, the light and the complex architectural details.

Crucially, this is an oversight role, not a management one. The specialists record any discrepancies with the project, put together comments for the contractor, and check whether they've been fixed. The designer doesn't run the crew, doesn't replace the site foreman, and isn't responsible for organising the work on site.

Why it's needed: what's lost without a designer's oversight on site

An interior design project sets the concept down on paper: materials, details, positioning, colour and texture decisions. But between the drawing and the finished wall there's always the person doing the building, and that person has their own familiar methods, their own stock of materials and their own pace. Without an independent check against the project, deviations build up gradually and unnoticed: a slightly different plaster texture, a slightly wider tile joint, one item swapped for something similar but not quite the one specified.

Taken individually, deviations like these look minor. Together they change an interior beyond recognition, and they're usually only discovered at the final handover, when redoing the work means tearing out finishes that are already complete. Design supervision closes that gap: a discrepancy with the project gets caught at a stage where it can still be fixed without loss.

How the process works

Design supervision isn't a one-off inspection, but a regular cycle that runs through the whole build.

Frequency. Scheduled site visits happen weekly, averaging 4–6 times a month once unscheduled visits are factored in: an extra visit is made when the contractor reaches a critical detail ahead of schedule, or when a disputed point comes up. The minimum contract term for design supervision is three months: long enough for the crew to get through the main stages of finishing, and for the designer to keep the whole build under control, from the rough installation stage to the final handover.

Who attends each visit. At least two specialists come to site — the designer and the design-supervision engineer. The designer checks the visual and spatial side: materials, textures, the geometry of complex details. The engineer checks the positioning of service points, heights, and technical junctions.

Staying in touch between visits. Scheduled visits don't mean the site goes unmonitored in between. The studio runs a shared Telegram chat with the builders and the client, where questions about details, material substitutions and drawing clarifications get resolved on the spot, without waiting for the next scheduled visit.

Reporting. Every visit results in a report with photo evidence, logged in the electronic design-supervision journal: what was checked, what was approved, what was sent back for rework, and which point of the project it relates to. It's a working document that both the client and the contractor can see; it heads off later disputes about what exactly went wrong.

What exactly the designer checks on site

On every visit, the specialists check what's actually built against the full set of project documentation:

• Layout and zoning — whether the actual partitions and openings match the approved plan.
• Positioning of service points — sockets, switches, and water and ventilation outlets in the positions the project specifies.
• Heights and dimensions — the levels of ceilings, decorative surrounds and niches, and the mounting heights of sanitaryware and furniture units.
• Materials and textures — whether what's actually on the wall or floor matches what's listed in the schedule and approved on the samples.
• Complex details — how non-standard solutions are executed: concealed doors, lighting, multi-level ceilings, glazed structures.
• Agreed adjustments — if something changes during construction (a material is discontinued, a detail turns out to be technically impossible as originally designed), the designer signs off on a replacement so the interior concept isn't compromised.

Design supervision vs construction and technical supervision

The terms are often confused, even though the jobs are different.

Design supervision covers whether what gets built matches the project: beautiful and precise, exactly as designed. It means regularly checking against plans, elevations, details and schedules, monitoring zoning, geometry, materials, light and complex details, and signing off on the inevitable adjustments without losing the concept. The specialists advise contractors on positioning and details, log comments after each visit, and check that they've been addressed. It's an oversight function — the designer doesn't manage the crew.

Design supervision doesn't include furnishing and procurement: selecting and ordering materials, working with suppliers, invoices, logistics and receiving goods. That's a separate process, arranged as a separate service if needed.

Design supervision also doesn't run tenders, doesn't manage contractors on timelines or the completeness of the work, and doesn't take on tasks not explicitly stated in the contract. Technical and construction control, financial settlements with contractors, and organisational management of the build stay within the remit of the relevant specialists.

Technical (construction) supervision covers whether what gets built complies with building codes and the project documentation. This separate service covers checking compliance with building codes and standards, verifying the quality of work and materials, signing off concealed works, keeping as-built documentation and work logs, checking contractors' qualifications and permits, and monitoring cost estimates, quantities and schedules. Technical supervision records violations, issues instructions for fixing them, and can require work to stop in the case of serious departures from the project. It doesn't manage the contractors administratively, though: it doesn't hire them or allocate staff, wages or internal schedules. None of this is part of the studio's design supervision.

In short: design supervision makes sure the result is beautiful and precise, exactly as designed; technical supervision makes sure it is built to code. The studio provides design supervision and doesn't replace the contractor's construction supervision — where needed, the two functions run in parallel, each within its own area of responsibility.

When to bring in supervision: right after the project, or can it wait

It makes the most sense to sign a design-supervision contract right after the technical documentation is approved, before construction work begins. That way the designer is on site from the first rough-work stage, checking every subsequent step against the project, not just the final result.

Supervision can be brought in later too, but the further the build has progressed without being checked against the project, the more decisions have already been made by eye, without reference to the drawings. By the time the designer joins, some of them may already be set in concrete, boxed in or tiled over, and reworking them will cost more than if the oversight had been there from the start.

A case: how supervision caught a defect before the finishing work

On one project, during a scheduled visit, the studio rejected the decorative plaster on an entire floor: the surface had bulges, bubbles and a texture that was too coarse — the result didn't match the approved project. The finish was sent back for rework at the contractor's expense, before the defect could carry through into the finishing works.

On the same project, the laying of porcelain stoneware in the lift lobbies on several floors was stopped: joint widths varied from 1 to 3 mm, and there was visible lippage between tiles. The work was sent back to be redone, and by the glazed door the contractor was required to replace the porcelain stoneware and restore the grey inserts specified in the project.

Both cases have one thing in common: without an on-site check, the defect would have gone unnoticed until the floor had already been handed over for finishing work. Redoing it at that stage means not just repeating the work, but also stripping out neighbouring structures that are already in place — which multiplies both the cost and the time lost.

Design supervision is a logical continuation of the interior design project — the project sets the concept down, and supervision makes sure the build matches it. More on the service is on the design supervision page.