Tiny house living requires a minimalist lifestyle — and some major changes.

Six people who live in tiny houses opened up to Business Insider about what they wish they'd known before going tiny.

Many tiny house dwellers weren't prepared for improvements the lifestyle would bring, while others wish they'd known more about potential challenges.

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Living in a tiny house involves major lifestyle changes.

Downsizing to 100 to 400 square feet of space requires both a physical and mental shift, from reducing possessions to getting acclimated to a tighter space.

Business Insider talked to six people who went tiny about what they wish they'd known before taking on a minimalist lifestyle. Many had no idea their life was about to get that much better, from the overall building experience to the ease of transition. Some wish they had been more prepared for a few complications — like parking restrictions and the importance of mobility.

Read more: Some people choose tiny houses to save money, but they might not always be the bargain you'd expect

But ultimately, all six tiny house dwellers were happy with their decision to go tiny — especially when it came to their finances.

Here's what these tiny house dwellers said they wish they'd known beforehand.