How to design a small apartment floor plan

Set the envelope before anything else

In a small flat, the shape of the space decides more than the furniture does. Before planning a room, get the internal dimensions of the flat and the position of the door, the windows and any column or pipe that cannot move. A plan drawn at the wrong size fails the moment you fit a bed against the wall.

Measure in millimeters and write the numbers down before you open the builder. The internal width of the longest wall, the depth of the room and the position of the entry door decide everything else, and they are the hardest to change later.

If you are starting from a template, choose one whose envelope matches. The studio apartment is the smallest useful starting point with a sleeping nook, a compact kitchen and a bathroom. The compact flat at 32 m² is the tight one-person layout. The template tour shows what each one is good for.

• Internal width, depth and the door position are the three key numbers
• Measure to the wall face, not to the skirting board
• Note any column, pipe or chimney that cannot move
• Pick the template whose envelope matches your measurements

Note: These are the dimensions of a real flat, which is exactly the sort of measurement a planning aid should start from. The catalog figures are typical examples, not your building.

Decide what the one room has to do

The hardest part of a small flat is that the main room has to be a living room, a dining room, a bedroom and a study on the same square meters. Decide which job wins on a weekday morning and which at night, because only one can have the best spot.

Then decide what does not belong in that room. Cooking belongs in the kitchen zone or the kitchen itself, laundry belongs in the utility room if there is one, and storage belongs on a wall rather than in the middle of the floor. Every item you push out of the main room is space you get back.

Write the three jobs down in priority order. When the flat feels cramped, the answer is usually to demote one job to a second space, such as eating at a counter instead of at a table, rather than to keep every job at full size.

• Rank the jobs the main room has to do, morning to night
• Move cooking, laundry and storage out of the main room
• One job gets the best wall; the others make do
• Demote one job instead of shrinking all of them

Place the fixed services first

The kitchen and the bathroom are the two rooms you cannot slide around, because they need water, drainage and usually a vent. Place them first, side by side where the flat allows, so the pipework stays short. In the builder they are rectangles typed Kitchen and Bathroom.

Next, place the entry and the storage. A small flat needs somewhere for shoes, a coat and a bag, and that is usually a wall near the door rather than furniture in the middle of the room. If there is a balcony, treat it as an outdoor room and put the living zone next to it.

Type the sizes as you place them. The inspector takes an exact Width (mm) and Height (mm) for every room, and a bathroom of 1700 by 2200 mm reads very differently from one of 2000 by 2600 mm once the door swing and the shower are in it.

• Kitchen and bathroom go side by side to keep the plumbing short
• Give the entry a wall for shoes and coats
• Treat a balcony or terrace as an outdoor room
• Type exact millimeter sizes for the rooms with fixed fittings

Zone the room instead of splitting it

Splitting a small room with a partition usually makes both halves worse, and it is another wall to draw and maintain. Zoning with furniture and light keeps the room flexible and costs no square meters.

A rug, a run of shelving or a kitchen counter is enough to say where the sleeping ends and the living starts. Draw the zone on the plan as a note, so the next person, and you in six months, can see that the intention was always two zones in one room rather than a mistake.

The one place a partition earns its place is the bathroom, and sometimes the sleeping area in a studio. If you do use one, draw it with the Wall tool and give it the Partition type, then check that the remaining room is still large enough to live in.

• Furniture and light zones cost no square meters
• Use the Note tool to record the intention of each zone
• Partition walls only where privacy genuinely needs one
• Check the room still works after any partition is added

Check the route from the door to the window

Small flats have one route and everybody uses it, so it has to work every time. Walk it on the plan: from the front door to the kitchen, to the toilet, to the window. Anything that forces you to squeeze past the bed to open a door is a fault in the layout, not a habit people will learn.

The doors are usually the problem. Place each one with the Door tool on the edge of the room it serves, then set the swing in the inspector so that the leaf opens against a wall or a piece of furniture rather than into the route. A bathroom door that opens into the kitchen is the classic small-flat failure.

The window is the other end of the route and deserves the best wall. The opening guide covers the placement rules in full, including what happens when an opening does not fit on the edge it was dropped on.

• Walk every daily route on the drawing, one room at a time
• Set the swing so no door leaf blocks the route
• Give the window wall to the part of the room you use most
• Keep the path from the bed to the window free of furniture

Note: The builder tells you that an opening does not fit on an edge, and it clamps an opening dragged past the end of a wall. It cannot tell you whether a door swing annoys you in real life.

Test the plan against the furniture you own

The final test uses real numbers rather than impressions. List the pieces you own with their sizes: a bed at 1400 by 2000 mm, a sofa 2200 mm long, a table for four at 1200 mm, a fridge 600 mm deep. These furniture sizes are what the plan has to accommodate, and the measuring guide covers how to record them.

Draw each piece as a room rectangle on a copy of the plan, with the Open plan type, so you can see them as blocks. If the bed and the table cannot both fit where they belong, you now know the flat works for a different life than the one you have, and that is a much better thing to discover on a plan.

Export the room schedule as CSV and check the areas one more time, then compare the plan against the number of square meters the listing claims. If the two disagree, trust your measurements: a plan built here is a planning aid with typical dimensions, not a survey. The complete Canvasola guide explains where the builder lives in the app.

• List your own furniture with real widths and depths
• Draw the pieces as blocks on a copy of the plan
• Check the bed, the table and the door swing together
• Compare the room areas against the floor area you measured

Note: The builder cannot tell you whether a piece of furniture fits through a door. Measure the piece and the opening before you commit to moving anything.

A checklist you can reuse

• The internal dimensions of the flat were measured before drawing
• The kitchen and bathroom are placed side by side
• Every room has a name, a type and a size in millimeters
• Zones are marked with furniture and notes, not partitions
• No door swing blocks the only route through the flat
• The plan was tested against real furniture sizes
• Room areas in the schedule match the measured floor area

Common mistakes to avoid

• Adding a room to solve a cramped feeling. A partition in a small flat makes both sides worse and costs floor area you cannot get back. Zone the room with furniture before you draw a wall.
• Planning the kitchen after the sofa. The kitchen and the bathroom are fixed by the plumbing, so place them first. Everything else can be moved around them afterwards.
• Ignoring the door swing. A door that opens into the only route is the fault people notice on day one. Set the swing on every opening and walk the plan again.
• Furnishing with a wish list. A plan drawn around furniture you do not own describes somebody else's flat. Measure the pieces you have and test those.
• Trusting the template numbers as measurements. The catalog holds typical dimensions rounded to 50 mm. They are a starting point, never a substitute for the measurements of the flat in front of you.

Frequently asked questions

What is the smallest apartment worth planning in detail?

Any flat you are about to sign for or move into. Even a compact one benefits from a plan, because the difference between a workable layout and an awkward one is usually a single door swing or a wall that was in the wrong place, and both are cheap to fix on paper.

Can I plan a studio with a separate bedroom area?

Yes, and a partition is the usual way to do it. The studio apartment template already includes a sleeping nook as its own room, which you can enlarge, shrink or leave open. Draw any partition with the Wall tool and give it the Partition type.

Do I need to plan every room in a small flat?

Name the rooms that carry a decision: the main room, the kitchen, the bathroom, the entry and any storage. A cupboard does not need its own rectangle, and a plan is more readable when it holds the spaces that matter rather than every empty corner.

Can the builder tell me if my furniture fits?

No. There is no furniture library and no fit check in this version. You draw your own pieces as room rectangles on a copy of the plan, which takes two minutes and answers the question you actually have: whether the bed, the table and the door swing fit together.

This guide is part of the floor plan guides collection. For the wider product tour, read the complete Canvasola guide, and keep the keyboard shortcut cheat sheet open while you work.