House Upgrades in The Sims 3 for iPod Touch: Not Possible

The Sims 3 Mobile: Fixed Housing

Unlike the PC/Mac version, The Sims 3 for iPod Touch (iOS) does not feature house building, renovation, or upgrade mechanics.

What the Mobile Version Includes

• Pre-built Lots: Choose from a selection of furnished/unfurnished houses at game start.
• Furniture & Decor: Buy mode allows placing/moving objects inside the existing footprint.
• No Build Mode: Cannot add/remove walls, floors, roofs, foundations, or expand rooms.
• No Lot Expansion: Lot size fixed.

Why the Limitation?

• Hardware Constraints: iPod Touch 4G (256 MB RAM, A4 CPU) couldn't handle the 3D build engine + streaming world.
• Touch Interface: Complex 3D construction tools don't translate well to 3.5" touchscreen.
• Scope Reduction: Mobile version focused on Sim needs, careers, relationships — not architecture.

Alternatives for Building on Mobile

• The Sims FreePlay / Sims Mobile (iOS/Android): Free-to-play, time-gated, but full Build/Buy mode with room addition, pools, 2nd story.
• The Sims 4 (PC/Mac/Console): Full build mode, gallery sharing.
• Pocket Build, Block Craft 3D: Sandbox building games.

Bottom Line: If you want to design houses on iPod Touch, The Sims 3 isn't the game. Try The Sims FreePlay (free) or wait for a more capable device.