Interior design project
Sample drawings for an apartment interior design project
Four documents behind an interior design project, shown on real pages from our work: the technical brief, concept design, technical documentation and cost estimate. They are what the interior is actually built from.
Documentation
Why drawings matter, not just 3D visualisation
A beautiful visual shows how the interior will look, but no one can build from it. A complete set of technical documentation means drawings with dimensions, junction details and specifications, so the building crew can deliver the project without improvising on site. Below are real pages from our projects: this is what the document you receive looks like.
A standard, not an option
We prepare a technical documentation drawing set for every project, whatever the floor area or budget; its scope is set out in each package. It is a required stage of the studio’s work, not an extra service.
What’s included in the technical brief
Technical brief
The first stage, where we define the brief in words and figures before any drawings or images.
01 — Questionnaire and interview with the client
Family composition, daily living scenarios, habits, hobbies, appliances, storage — the inputs that later shape the layout.
02 — Measured survey
A site visit, measurements of every room, and a record of risers, ventilation shafts and any deviations from the developer’s plan.
03 — List of rooms and functions
What goes where, which areas are essential and which are optional, and how much floor space each one needs.
04 — Engineering and technical requirements
Air conditioning, ventilation, underfloor heating, smart home, low-voltage systems, built-in appliances: we pin these down at the outset, not once building is under way.
05 — Reference selection and stylistic preferences
Visual cues of what you like / don’t like, so the concept doesn’t become a lottery.
06 — Budget guidelines and timelines
The budget range for implementation and the desired timelines — they influence the choice of materials and solutions.
Stage outcome: an approved document that becomes the baseline for all future decisions.
Technical brief — sample
The project starts with this document: how the apartment will be lived in, and what is wanted from the style and function of each zone.
What’s included in concept design
Concept design — interior concept and visualisation
A stage where the project gains shape and character. This is where the key decisions are made.
01 — Layout alternatives
Several fundamentally different layouts, each with its pros and cons — we select the baseline for the next steps.
02 — New construction plan
What we remove and what we build: new partitions, openings, niches — at the concept level.
03 — Furniture and equipment layout plan
A final layout with tested clearances, door-swing zones and ergonomics.
04 — Interior concept and style direction
Materials palette, collage and mood board — the interior as a whole, not a set of pretty pictures.
05 — 3D interior visualisation of rooms
Photorealistic images from 2–5 viewpoints per room, depending on the package. You can see the result before any work begins.
06 — Approval and revisions
Adjustments to visualisations while changes cost nothing yet — on paper, not on the construction site.
Stage outcome: approved layout and an approved visual concept. After that, only the documentation changes, not the idea.
Concept design — interior concept and visualisation
How the interior will look before technical design begins.
What’s included in the technical documentation drawing set
Technical documentation — a set of drawings
The main working tool on site. A complete set that the builders, electrician, plumber and joiner can follow without improvising.
01 — Measured survey and layout
Accurate room dimensions, partition placements, furniture and equipment layout.
02 — Demolition and new construction
What we remove and what we build: partition materials, thicknesses, and opening placements.
03 — Electrical and lighting plan
Sockets, switches, lighting groups, low-voltage cabling runs — with exact coordinates for the electrician.
04 — Plumbing and water supply
Connection points, drainage outlets and water connections for sanitary ware and appliances, positioned along the wall and by height from the floor.
05 — Ventilation and climate control
Supply and extract ventilation, concealed building services and air conditioning: duct routes, penetration details, and the positions of grilles and indoor units.
06 — Ceiling plan
Levels, construction types, and the placement of luminaires and equipment according to the ceiling plan.
07 — Flooring plan
Floor build-up, underfloor heating, finish boundaries and junctions between materials.
08 — Tile and finish layouts
Layout diagrams for wet areas: start points, trimming, joints, and volume calculations with allowances.
09 — Wall elevations
Each wall to scale: heights, materials, finish junctions, and the placement of decor and equipment.
10 — Doors, openings, and portals
A schedule of openings with dimensions, swing directions, casing types, and finishes tie-ins.
11 — Custom furniture
Briefs for the kitchen, cupboards and walk-in wardrobes: dimensions, internal fittings, and coordination with building services and hardware.
12 — Junction details and material schedules
Close-ups of complex junctions, and a list of finishes, furniture and equipment with manufacturers, product codes and quantities.
Stage result: a set of drawings that allows the project to be built exactly as in the visualisations.
Technical documentation — a set of drawings
The main document: a complete set of drawings for the building crew, from measurements to junction details.
What’s included in the project cost estimate
Project cost estimate
A document that turns drawings into costs and makes the implementation budget predictable.
01 — Schedule of work quantities
All types of work by sections with actual quantities calculated from drawings, not “by eye”.
02 — Estimate by finishing materials
Line items with product codes, quantities and an allowance for cutting, ready to take straight to the shops.
03 — Building services and equipment
Electrical work, plumbing, ventilation, climate, and lighting — set out in separate sections.
04 — Furniture, appliances, and décor
Items with manufacturers and estimated prices as of the calculation date.
05 — Breakdown by sections and rooms
You can see exactly what makes up the budget and where you can save without compromising quality.
06 — Contingency and assumptions
What is not included in the estimate, where variations are possible, and what contingency amount to plan for — honestly and in advance.
Stage result: a clear estimate that shows how much the implementation costs and what each figure is based on.
Project cost estimate
An example of a clear budget breakdown by section.
Questions about drawings and documentation
Do I need to understand drawings to be able to use them?
No. The PDF version of the drawing set is made for you, not for a professional: every sheet comes with notes and captions in plain language. We go through the key pages with you at a meeting before the documentation goes to the building crew. The DWG files are the working format, used by engineers and contractors.
Are the drawings included in the design project cost?
Yes, the technical documentation drawing set is part of the design project and is not billed separately; its scope is set out in each package.
What if, during construction, we need to change something — move a socket, shift a partition wall?
Edits are made to the original drawings, not left as verbal arrangements on site. We update the relevant page in the album, and the crew continues working from the current version of the document — with no chain of informal changes that later become hard to track.
How do the drawings protect me if the crew makes a mistake?
The technical documentation drawing set is a document you have approved, not a verbal arrangement. If the work on site departs from the drawings, you have something to check it against, and responsibility lies with the contractor. Where a project needs closer control on site, we offer design supervision: regular visits by the designer to check the work against the documentation.
If the renovation is carried out by a third-party contractor rather than your crew, are the drawings still useful?
Yes, that is exactly what they are for. The drawing set is not tied to a particular contractor: any suitably qualified crew can work from it, whoever led the project.
What happens if, during measurements, we find a discrepancy with the developer’s plan?
This happens more often than it seems: the layout of risers, ventilation shafts, or load-bearing walls in real life can differ from the developer’s documents. We record the actual dimensions during the site visit and build the layout based on them, not on paper that may not match the property.
Does the documentation set for an apartment differ from the one for a house?
The logic is the same, but for a private house we add sections on the foundation, roofing, external utilities and sometimes landscaping — things an apartment simply doesn’t have. We always put the drawing set together for the specific property rather than using a standard template.
Can demolition start while part of the documentation is still being revised?
We hand over the drawing set as a whole, not in parts, so demolition never starts while the electrical decisions for that area are still open. Within the studio, the sections are signed off one after another so that no one on site has to argue about what has been decided and what hasn’t.
Consultation
Would you like an equally detailed project for your apartment?
We will explain how the documentation is structured specifically for your property and estimate the timeline.