KitHAUS makes kit structures like this one with a bolt-together aluminum frame and SIPs floors, walls, and ceiling. With 117 square feet, the kitHAUS K3 is being used on a Shea Homes project in San Diego as a leasing office, though it could easily be used elsewhere as an artist studio or home office. A Halcyon model mini-split from Fujitsu cools the space, which costs about $40k with decks and accessories (but not the mini-split).
Earlier this summer, LittleFootprint Lighting announced the availability of a high-performance task light for home or office called the HeronLED Personal Task Light. The light is designed and made in the USA with recycled plastic from e-waste and uses a replaceable LED bulb as the light source.
Photovoltaic panels and solar hot water panels both provide useful benefits for the buildings they are attached to, but sometimes there is limited space on the roof, and usually only one or the other is installed. Solimpeks, a solar panel manufacturer based in Turkey, has been producing solar panels for a long time, and has an elegant solution to the problem: a panel that produces both electricity and hot water. It turns out that the Solimpeks Volther dual-use panels increase efficiency more than you might expect.