Container housing is housing created by adapting new or used intermodal shipping containers, or possibly units/modules built similarly to shipping containers and transportable as a special type of.
Twitter discussion search link: #containerhousing.
Comment from Leilani Farha, UN Special Rapporteur right 2 Housing, 6 Sept 2019, regarding Barelona container-housing:
"Desperate times. Desperate measures. Anything can b a "home" - even a shipping container - IF it meets adequacy standards under int'l #humanrights law + IF the ppl who are going to live there participate in the design to ensure it suits their needs. #right2housing #maketheshift"
Vendors / systems
Panoramic Interests - MicroPAD 
Container-like structures 
Kit housing delivered by container
- Shipping container architecture (Wikipedia)
- Alter, Lloyd. "Does the Upcycle House live up to its advance billing? Treehugger, January 22, 2014. https://www.treehugger.com/modular-design/does-upcycle-house-live-its-advance-billing.html.
- Belogolovsky, Vladimir. 3 January 2018. "LOT-EK: “The Shipping Container Is a Vehicle to Invent New Architecture.” https://www.archdaily.com/886447/lot-ek-the-shipping-container-is-a-vehicle-to-invent-new-architecture.
- Burgen, Stephen. "Sardine tins for the poor?: Barcelona's shipping container homes." The Guardian, 6 Sep 2019. https://www.theguardian.com/cities/2019/sep/06/sardine-tins-for-the-poor-barcelonas-shipping-container-homes.
- Hogan, Mark. "Opinion: What’s Wrong With Shipping Container Housing? Everything." Archdaily, 13 September, 2015. https://www.archdaily.com/773491/opinion-whats-wrong-with-shipping-container-housing-everything.
- Hunter, Peter. The Magic Box: A History of Containerization, 1993.
- Klose, Alexander. The Container Principle: How A Box Changes the Way We Think. 2015.
- Robertson, Derek. "https://www.politico.com/magazine/story/2017/07/20/shipping-containers-affordable-housing-215400." Politico. July 20, 2017.
- Rosen, Kenneth R. "Coming Home to a Shipping Container: Eco-friendly and affordable, shipping containers are gaining popularity as an alternative to traditional houses." 22 Sept 2017. https://www.nytimes.com/2017/09/22/realestate/home-in-shipping-container.html.
- Saletta, Morgan. "The plug and play city: how shipping containers are changing infrastructure." The Conversation, August 28, 2016.
- Williams, Richard J. "The Sinister Brutality of Shipping Container Architecture."https://www.nytimes.com/2019/08/14/opinion/shipping-container-homes.html.