You cannot freely knock down or rebuild structural interior walls with a verified native Big Ambitions 1.0 tool. Interior Designer lets you change wall and floor finishes, recolor supported furniture, and improve visibility while decorating, but painting a wall or hiding it from the camera does not remove its collision or change the room boundary.

Three actions that look similar but are different

Change a wall finish

Open Interior Designer, select a wall material, then apply it to the wall surface and confirm the design cost. This changes appearance and interior-design value, not the floor plan. Developer guidance describes choosing a design and painting it onto the selected wall or floor.

Hide walls from the camera

Wall visibility controls let you see and place objects more easily. The wall still exists for movement and layout rules. Use this when a tall surface blocks your view, not when you need a wider room.

Remove a structural wall

The older direct discussion says adding or removing walls was unavailable, while the official community forum continued to track placeable/removable interior walls as a requested feature. The 1.0 feature review found no documented general demolition tool that supersedes that limitation.

What to do instead

  • Need an open sales floor: rent or acquire a unit whose existing shell is already open.
  • Need a private-looking area: use glass dividers, shelving, cabinets, plants, or other furniture as visual boundaries where pathing permits.
  • Need to hide storage: place storage behind displays without blocking staff access or the delivery spot.
  • Need better camera access: toggle wall visibility while arranging the room.
  • Need only a new look: change wall and floor materials in Interior Designer.
  • Need a reusable arrangement: build the layout around the fixed shell, test its paths, then save it as a blueprint for the same compatible building type.

A safe redesign workflow

  1. Save before a large renovation or preserve the current blueprint.
  2. Enter Interior Designer and hide walls only for visibility.
  3. Mark fixed entrances, bathrooms, delivery spots, stairs, and service areas.
  4. Place functional equipment and confirm that staff and customers can reach it.
  5. Use furniture or dividers for zones without sealing the path.
  6. Change wall and floor finishes last.
  7. Apply the design, exit the editor, and walk every critical route.

EA 0.6 improved the Interior Designer with easier tools such as copying designs and filling a whole surface, but those improvements concern placement and materials rather than arbitrary structural demolition.

Common mistakes

Looking for a sledgehammer or wall-removal button

No verified standard 1.0 workflow uses one. Do not buy unrelated tools or repeatedly click the material panel expecting demolition.

Assuming a hidden wall is gone

Test by walking through the boundary. If movement is blocked, you changed camera presentation only.

Applying a blueprint made for another shell

Blueprint compatibility depends on building type and size. A plan cannot make an incompatible fixed wall disappear.

Blocking the only operational path with dividers

Visual zoning still affects pathing. Test entry-to-checkout, staff-to-equipment, cleaning, bathroom, storage, and delivery routes before opening.

If a current mod adds structural editing, treat it as a mod feature: back up the save, verify 1.0 compatibility, and do not assume the building remains usable after the mod is removed.