Tiny house

The **tiny-house movement** (also known as the "small-house movement") is an architectural and social movement that advocates living simply in small homes. 2018 International Residential Code, Appendix Q Tiny Houses defines a tiny house. However, a residential structure under 37 m² (400 sq. ft) is generally considered a tiny home. The tiny-house movement promotes financial prudence, economically safe, shared community experiences, and a shift in consumerism-driven mindsets.

## Background

In the United States of America, the average size of new single family homes grew from 1,780 square feet (165 m2) in 1978, 2,479 square feet (230.3 m2) in 2007, and 2,662 square feet (247.3 m2) in 2013. Increased material wealth and individuals with high incomes are common reasons why homes sizes increased.

The small house movement is a return to houses of less than 1,000 square feet (93 m2). Frequently, the distinction is made between *small* (between 400 square feet (37 m2) and 1,000 square feet (93 m2)), and *tiny* houses (less than 400 square feet (37 m2)), with some as small as 80 square feet (7.4 m2). Sarah Susanka started the "counter movement" for smaller houses which she details in her book *The Not So Big House* (1997). Earlier pioneers include Lloyd Kahn, author of *Shelter* (1973) and Lester Walker, author of *Tiny Houses* (1987). Henry David Thoreau and the publication of his book *Walden* is also quoted as early inspiration.

Tiny houses on wheels was popularized by Jay Shafer who designed and lived in a 96 sq ft house and later went on to offer the first plans for tiny houses on wheels, initially founding Tumbleweed Tiny House Company, and then Four Lights Tiny House Company (September 6, 2012). In 2002, Shafer co-founded, along with Greg Johnson, Shay Salomon and Nigel Valdez the Small House Society. Salomon and Valdez subsequently published their guide to the modern Small House Movement, *Little House on a Small Planet* (2006) and Johnson published his memoir, *Put Your Life on a Diet* (2008).

 File:Tiny House Giant Journey in the Petrified Forest and an RV.jpg
With the great recession hitting in 2008, the small house movement attracted more attention as it offered affordable, ecologically friendly housing. Overall, it represented a very small part of real estate transactions. Thus, only 1% of home buyers acquire houses of 1,000 square feet (93 m2) or less. Small houses are also used as accessory dwelling units (or ADUs), to serve as additional on-property housing for aging relatives or returning children, as a home office, or as a guest house. Tiny houses typically cost about $20,000 to $50,000 as of 2012.

Tiny houses have received tremendous media coverage
including a serial television show, *Tiny House Nation*, in 2014 and *Tiny House Hunters*. The possibility of building one's own home has fueled the movement, particularly for tiny houses on wheels. Tiny houses on wheels are often compared to RVs. These are often called Park Model RVs. However, tiny houses are built to last as long as traditional homes, use traditional building techniques and materials, and are aesthetically similar to larger homes.

## Outside the United States

While the movement is most active in America, interest in tiny homes has been revived in other developed countries, as well.

* In Sweden, a chef couple launched a Kickstarter and then began a new forest to table movement called Stedsans in the Woods out of tiny home cabins for rent in a Swedish forest. They share the blueprints for their A Frame cabins.
* In Japan, where space is at a premium, Takaharu Tezuka built the *House to Catch the Sky* in Tokyo, a 925-square-foot (85.9 m2) home for four.
* In Barcelona, Spain, Eva Prats and Ricardo Flores (Flores & Prats) presented the 300-square-foot (28 m2) *House in a Suitcase*.
* In Britain, Tiny Eco Homes UK has developed several customisable tiny house models starting at £26,000. Dozens of the homes are being used as primary residences across the UK and mainland Europe. Abito created intelligent living spaces apartments of 353 square feet (32.8 m2) in Manchester; Tiny House Scotland has created the Nesthouse    ; a 23 m² (250 sq ft) modular move-able small eco-house to explore the possibilities of sustainable small-scale living in a highly insulated timber framed structure with some Passivhaus principles ensuring very low energy usage. The estimated cost for the Nesthouse is 55,000 euros. Northern Ireland has also seen a small but growing community of tiny house owners, although the planning rules do not specifically accommodate tiny houses, meaning that "*the planning process (for a tiny house) would need to be looked at on a case-by-case basis*".
* In Germany, the community of Vauban created 5000 households in an old military base in Freiburg. The planned density of the building on that area is of 50 dwelling units per acre.
* In Germany, British architect Richard Horden and the Technical University of Munich developed the *Micro Compact Home (M-CH)*, a high end small (76-square-foot (7.1 m2)) cube, designed for 1–2 persons, with functional spaces for cooking, hygiene, dining/working, and sleeping.
* In New Zealand, more companies are building tiny houses, mostly bespoke and customized. Bryce Langston, a film-maker with a passion for small space design, permaculture, and downsized, eco-friendly living has created short, documentary-style videos on small space living for YouTube via his channel and website 'Living Big in a Tiny House'.
* In Australia some interest commenced through designers such as Fred Schultz and builders such as Designer Eco Tiny Homes and TechnoPODS. T.I.T.A.N. Hills along Victoria's scenic Great Ocean Road, is the world's first master-planned, ecological, off-grid, tiny home subdivision.
* In September 2019 in France, the “Ty Village” has open its door at 6 km from the nearby University of Saint Brieuc in the department of Bretagne.

## Issues

The popularity of tiny houses has led to an increase in amateur builders which has raised concerns regarding safety among tiny house professionals. In 2013, the Tiny House Fair at Yestermorrow in Vermont was organized by Elaine Walker. An attendee at the event, Jay Shafer, suggested promoting ethical business practices and offering guidelines for construction of tiny houses on wheels. Walker continued this effort in 2015, creating the non-profit organization, American Tiny House Association. Walker and founders Elizabeth Roberts, Andrew Heben, Robert Reed, and William Rockhill promote tiny houses as viable living spaces and work with local government agencies on approving zoning and coding regulations that are favorable to tiny houses.

One of the biggest obstacles of the tiny house movement is the difficulty in finding a place to live in one. Zoning regulations typically specify minimum square footage for new construction on a foundation, and for tiny houses on wheels, parking on one's own land may be prohibited by local regulations against "camping." In addition, RV parks do not always welcome tiny houses.

Tiny houses on wheels are considered RVs and are not suitable for permanent residence, according to the Recreational Vehicle Industry Association. From RV Business, "The RVIA will continue to shy away from allowing members who produce products that are referred to as "tiny houses" or "tiny homes". (However, the RVIA does allow “tiny home” builders to join as long as their units are built to RV or park-model RV standards.)"

Lower court decisions in the US have struck down zoning laws related to size that were an obstacle to tiny housing. One of those cases was League of South Jersey, Inc v. Township of Berlin, where the court found that a zoning law related to the size of a home did not protect citizens, so the law was struck down. These decisions are still far from being the majority, but they help in allowing the propagation of the tiny housing movement.

In 2014, the first "tiny house friendly town" was declared in Spur, Texas; however, it was later clarified that a tiny house may not be on wheels but must be secured to a foundation.

In July 2016, Washington County, Utah revised their zoning regulations to accommodate some types of tiny houses.

Increasingly, tiny houses have become larger, heavier, and more expensive. The ideal of minimal impact on the environment is being lost as businesses capitalize on the popularity of tiny homes. The distinction between tiny houses and luxury RVs is diminishing, causing some of the long time leaders to abandon the movement.

## Housing for the homeless

    The financial crisis of 2007–08 fueled the growth of the small house movement. In several cities, an entrenched homeless population formed around "tent cities" or encampments that became semi-permanent housing. Homelessness in these communities was driven by foreclosures and expensive mortgages from the United States housing bubble.

Tiny houses became an affordable option for individuals that lost their homes. With their low cost and relative ease of construction, tiny houses are being adopted as shelters for the homeless in Eugene, OR; Olympia, WA; Ithaca, NY; and other cities. Communities of tiny houses offer residents a transition towards self-sufficiency. Communities such as Othello Village in Seattle, WA, originally lacked electricity and heat. In Seattle, non-profits have stepped in to help provide amenities.

The tiny house option can often be low-cost and is sometimes used to provide housing for the homeless. However, long-term viability of tiny houses for homeless people is completely dependent on the structure and sustainability of the model. Housing the homeless is said to be a cost-saving for municipalities. But, strict zoning and land ownership laws make it difficult for this movement to take root. Benefits of access to housing include privacy, storage, safety, restoration of dignity and stability.

In Reno, Nevada, faith-based groups and community advocates have legislated for new zoning for housing for homeless people in a tiny home community. Each tiny house would cost an estimated $3,800 to build, as well as an operating budget of $270,000 for case managers to help residents find more permanent housing and a project manager position.

One challenge besides zoning and funding has been a NIMBY response by communities. Communities may weigh concerns over tiny home communities becoming shantytowns or blighted neighborhoods that reduce property values of the surrounding neighborhoods. For cities such as Chicago, tiny houses are seen as an appealing option to close the gap in housing availability. Community planners also have concerns that communities don't devolve into shantytowns such as during the Great Depression in "Hoovervilles".

In California, the city of Richmond has engaged University of California- Berkeley students involved with the THIMBY (Tiny House In My Backyard) project with a pilot program for developing a model for six transitional tiny homes to be placed in the city. This is in-line with developing efforts in the San Francisco Bay Area to use micro-apartments and tiny houses in combating the housing crisis and Homelessness in the San Francisco Bay Area. Similar efforts of using tiny houses to house the homeless are also ongoing in Oakland through a partnership between the City of Oakland and Laney College.

In Edinburgh UK the Social Enterprise Social Bite asked Jonathan Avery of Tiny House Scotland to design a variation of his NestHouse tiny house to create a two bedroom version for its Homeless Tiny House Village in the Granton area of Edinburgh. The village was opened on May 17, 2018 by the Scottish Cabinet Secretary for Communities, Social Security and Equalities, Angela Constance MSP and features eleven NestHouse Duo tiny houses and a community hub building all built by Carbon Dynamic.

## The pros and cons of tiny houses

In the co-authored research article *The Psychology of Home Environments*, it's argued that the drive behind the tiny house movement is centered around desires of modesty and conservation, in addition to environmental consciousness, self-sufficiency, and wanting a life of adventure. Environmental psychologists reason that homes influence people's emotional state because they “facilitate the social interactions and the power dynamics that are played out in a home”. In building tiny houses, there is often a misalignment between the needs of the occupant(s), and the expressed design from the creating team. This reality is used as a call for architects and design teams to work with psychologists to build tiny homes that are better suited towards the needs of the occupant(s). In understanding these considerations, it is important to note that not everyone is suited for a tiny house.

Smaller homes are less expensive than larger ones in terms of taxes and building, heating, maintenance, and repair costs. The lower cost of living may be advantageous to those 55 and older with little savings. In addition to costing less, small houses may encourage a less cluttered, simpler lifestyle, and reduce ecological impacts for their residents. The typical size of a small home seldom exceeds 500 square feet (46 m2). The typical tiny house on wheels is usually less than 8 by 20 ft (2.4 by 6.1 m), with livable space totaling 120 sq ft (11 m2) or less, for ease of towing and to exempt it from the need for a building permit.

Small houses may emphasize design over size, utilize dual purpose features and multi-functional furniture, and incorporate technological advances of space saving equipment and appliances. Vertical space optimization is also a common feature of small houses and apartments. An example of this is the use of loft spaces for sleeping and storage. Because of overall height restrictions related to the ability to easily tow a tiny house, it is common for lofts to be between 3.3 ft and 5.5 ft (1.0m and 1.7m) inside height. Therefore, for accessibility of elderly and disabled people, larger floor plans that keep essential elements like bed, bathroom and kitchen on the main floor are more typical.

As small houses may be attractive as second homes or retirement houses, their increased utilization may lead to development of more land. People interested in building a small home can encounter institutional “discrimination” when building codes require minimum size well above the size of a small home. Also, neighbors may be hostile because they fear negative impacts on their property values. There has also been opposition based on this fact, due to concerns about increased taxes.

## Electrical setup and grid impacts

Tiny homes are threatening increased grid defection because of their inherently low energy demands due to their small size and often roof-mounted solar panels, as their customized builds lend themselves toward rooftop photovoltaics. Especially with the continuously decreasing price of solar panels and batteries, tiny homes are examples of existing and commercially proven alternative off-grid housing.

### Off-grid solar electrical system

Each space and house will have their own energy consumption profile and generation demand. Consequently, they must size their power equipment accordingly. To size battery systems to store captured energy or grid supplied energy to be used during times without power production from the rooftop solar, such as when there is inadequate insolation, you will need to know your generation capacity (as to not under or oversize your battery bank), the type of batteries used, their individual capacity (Ah), the discharge rate allowable per cycle (%), the size of loads (W or Wh), how long they will be run, and how many days or hours of storage you want to build. Battery sizing calculators are available online to simplify this process. Additionally, battery balancers, sensors that can read and recalibrate the available capacity, or state of charge, between different battery cells, can be added to extend the life of your battery system as to prohibit voltage offset or non-ideal current flow, potentially damaging or capacity reducing to batteries over time. Note that batteries are rated in terms of amp-hours with their discharge rate and capacity will be set by the manufacturer at a specific amperage and total amount of time as voltage differs with temperature and power will vary with rate of discharge.

To fully convert a tiny home for living capacities off-grid, one must keep in mind other necessary power electronic power equipment, such as a charge controller, an inverter to power AC loads or down-regulators for DC loads, and proper protection devices such as circuit breakers and fuses. Specific sine inverters may offer simultaneous grid power hookup, called “Grid-tie inverters” in case of non-sufficient energy generation locally. Grid-tie inverters are of current academic interest and are currently being studied by utilities for their impacts and potential benefits to voltage regulation, infrastructure implications, protection schema requirements, economics, and optimum policy for integration for implementation into the electrical grid with the rise of distributed generation, namely residentially supplied solar power.

## Environmental impact of the tiny house movement

### Size of homes

Tiny homes range typically between one hundred and four hundred square feet, the size fluctuating depending on the owner. Considering the small size of tiny homes in comparison to that of average sized homes, energy costs are invariably smaller; moreover, tiny home power grids are typically sourced from solar panels which decreases the amount of energy necessary to sustain the home. More importantly, the price difference of using solar power on a tiny home in comparison to an average sized home significantly decreases homeowner expenses. Thus, the variation of energy emissions and cost necessary for output between a tiny home and average sized home varies notably. While a tiny home is sustained to operate on 914 kilowatts a year, producing on average 1,144 pounds of carbon dioxide, an average size required 12,733 kilowatts which releases close to 16,000 pounds.

Consequently, tiny homes inevitably require the consumption of less energy to support the homeowner. As a result, people living in tiny homes typically limit the accumulation of materialistic items. The limited space of a tiny home insists that owners sacrifice the idea of abundant materialism. It also allows homeowners to re-evaluate their personal habits, which subsequently translates into awareness regarding environmental sourcing. The concept of a “tiny” home reflects all aspects of the chosen lifestyle; a minimized space necessitates minimal consumer spending while the limited the amount of surface area provided decreases the rate and level of energy consumption.

### Environmentally conscious design

Human beings have been the main contributor in recent environmental changes. One critical proponent of these changes relates to infrastructure; buildings affect both human beings and the environment, however the costs tend to effect the environment while the benefits are exclusive to humans. The intention of building new infrastructure is to guarantee its sustainability for a long period of time. As a result, the less environmentally intentional a facility, the more it will depend on consumption of natural resources. “Part of the very definition of a tiny home is that it be constructed with environmentally conscious and renewable materials.” Most tiny homes are designed to receive their services in ways that are less environmentally exhaustible. Electrical grids and public utilities are a distinguishable way tiny homes receive various water, electric and plumbing services. This detail is critical for consideration when individuals move from average sized homes to tiny homes because it allows individuals to both save money while using less environmental resources. Another important environmentally conscious feature relates to toilets. Some tiny homes are equipped with incinerator toilets which get rid of waste by burning it rather than flushing. By eliminating toilet flushing, the amount of water used in a household significantly decreases. An alternative feature is a compost toilet which works by decomposing the waste using evaporation to remove it. Therefore, not only are tiny homes energy efficient, the makeup of these homes are also intended to be environmentally friendly. Subsequently, in order for new materials to be both utilized in construction and sustainable for long periods of time, the production of such materials are dependent various chemicals; this added step removes additional resources from the environment. An alternative to this is the usage of recycled materials which reduces the need for added chemicals because the process of which has already occurred in the initial production. For example, the tiny homes designed by a group in Texas, consciously avoid using new materials in their construction. Bearing in mind the fact that human beings expend between 30-40% of all energy, infrastructure is best fit to include the consumption of human beings within its blueprints.

Those individuals who live in tiny homes are directly connected to the environment primarily because of the close proximity between tiny homes and the surrounding ecosystems. Through constant contact, the homeowner is given the opportunity to better understand the functions of nature. Such an understanding allows for an increase in environmental awareness.

More so, the design of tiny homes are subject to individual modification; the style, level of sustainability, intricacy, materials used, and modifications are all determined by homeowner preferences.

### Environment and homelessness

Homelessness is a critical issue in the United States. According to The U.S. Department of Housing and Urban Development, about 550,000 individuals were experiencing homelessness on a given night in 2018. Over half of those individuals were able to sleep in different types of shelters while roughly thirty-five percent were unable to reside in a sheltered area. Despite the little information provided on this issue in popular media, homelessness has the capacity to affect the environment dramatically. According to Environmental Council of Sacramento, homelessness is a contributor to environmental deterioration. For example, waste [litter, drug paraphernalia, etc.] produced by the homeless accumulates around their living spaces which tend to be near waterways, sewage systems, or parks. This leads to the contamination of the surrounding ecosystem. The Environmental Council offers steps towards conserving the environment while simultaneously dealing with the issue of homelessness. These steps include the cleaning of various water systems and public spaces in order to provide both clean water and clean areas for all individuals of the community. One of these steps also includes governmental intervention in establishing sanitary and safe spaces for the homeless in order to prevent further environmental destruction. Luckily, systems for just that are beginning to form though the tiny house movement.

A critical form of combating chronic homelessness is the establishment of tiny house communities. Those behind such establishments aim to help individuals solve their housing problems and offer a space where individuals can connect with other's who find themselves in similar circumstances. Creating these communities requires a variety of support, however the end goal is ultimately shared. The primary actors behind the building and funding of tiny homes for the homeless are non-profit organizations. Their goal is not only to give homeless people a place to live, but also offer them resources to help them in all aspects of their lives. Building communities of tiny homes for the homeless is a group effort involving the homeless, cities themselves, and housing patrons. Through their efforts, the issue of homelessness in itself, along with its effects on the environment, are being continuously combated and improved.