The OFFGRID-INSTYLE  ECO-CABIN is a stylish modern design, ideal as an economical tiny home, granny flat, holiday cabin, or backyard office.  It has an elevated timber-framed floor supported by posts, so is suitable for level, sloping, or poorly drained sites.  The complete set of drawings include 20 pages of fully-detailed construction drawings, plus a comprehensive materials order list with accurate and up-to-date cost estimates; so it's easy to get competitive quotes from local builders because they only have to estimate their labour costs and it's a simple easy-to-build design.  The drawings available for purchase below with immediate download in PDF format (to scale when printed on A3 sheets) are prepared by an accredited building designer so can be submitted to council for approval.

The ECO-CABIN-40 is a one-room plus bathroom cabin with a total footprint of 40m².  It can be built on site by a team of 2 carpenters in less than 4 weeks for a total cost around AUD$70,000, including footings, materials, fixtures, and labour.  It's thermally comfortable in any climate, and very energy efficient, so can easily be powered by a small off-grid solar/battery system.

Ecoventure Pty Ltd (Australian Company Number 002169842)  trading as The SOLARHOME Project
24 Pars Rd Greens Beach Tasmania 7270  Australia