Tiny homes in Meridian, Idaho — UDC Title 11 zoning, the RV-park-only THOW rule, ADU size limits, builder costs, and what to know before buying or building.
Last researched June 2026
Meridian is the Treasure Valley's family-suburb heavyweight — for years among the fastest-growing cities in the country — built around The Village at Meridian's shops and fountains, Settlers Park's 56 acres of ballfields and splash pads, and a commute that puts downtown Boise 20 minutes east. The high-desert climate brings hot, dry summers, mild snow, and enough sun for genuine year-round outdoor living, with the Boise foothills and Bogus Basin within easy reach. For tiny home enthusiasts the honest picture is suburban polish over regulatory rigidity: HOA-governed subdivisions and the strictest THOW rules in the valley, which is why most small-footprint living here takes the form of a foundation ADU behind an existing home rather than a home on wheels.
Meridian takes the hardest line on tiny homes on wheels in the Treasure Valley. The city code states that no motor vehicle or trailer — including travel trailers, fifth wheels, recreational vehicles, mobile tiny houses, and motor coaches — may be used as a residence or living quarters except within an approved recreational vehicle park. That rule survived a high-profile constitutional challenge: in Decker v. City of Meridian, brought by resident Chasidy Decker and the Institute for Justice after she was ordered out of a THOW parked on a rented lot, Fourth District Judge Jason Scott ruled for the city on July 23, 2024, and Decker's team said it would seek further review (per BoiseDev, July 26, 2024; appeal status unconfirmed as of June, 2026).
Foundation-built tiny homes run through Title 11 of Meridian's Unified Development Code (UDC). Accessory dwelling units are limited to 900 square feet or 50 percent of the primary home's floor area, whichever is smaller, with detached units following accessory-structure setbacks in the R-2, R-4, R-8, and R-15 districts; the city also applies a unified-ownership requirement, meaning the owner of the primary residence must own the secondary dwelling (as of June 2026). A Meridian mailing address does not guarantee city jurisdiction — lots in unincorporated Ada County permit through the county instead.
Idaho SB 1354 (effective July 1, 2026) requires cities over 10,000 people, including Meridian, to allow at least one ADU per single-family lot and bars owner-occupancy mandates, with codes due to conform by February 1, 2027. Verify current requirements with your local planning department before purchasing land or beginning construction.
Verify current requirements with your local planning department.
Meridian allows ADUs under Title 11 of its Unified Development Code: maximum 900 square feet or 50 percent of the primary home's square footage, whichever is smaller, with detached units held to accessory-structure setbacks that vary across the R-2, R-4, R-8, and R-15 districts (as of June 2026). Meridian does not impose an owner-occupancy requirement in most zones, but its unified-ownership rule requires the owner of the primary residence to also own any secondary dwelling unit on the lot — the provision that proved decisive in the Decker tiny-home litigation. Permits go through the City of Meridian Building Department for lots inside city limits, or Ada County for unincorporated parcels with Meridian addresses. Idaho SB 1354, effective July 1, 2026, guarantees at least one ADU per single-family lot in cities over 10,000 people and bars owner-occupancy mandates statewide; Meridian has until February 1, 2027 to conform its code. HOA covenants are not overridden.
Communities, RV parks, and parking options in and near Meridian.
There is no legal way to live full-time in a THOW on a residential lot in Meridian as of June 2026 — the city code confines residential use of any wheeled dwelling to approved RV parks, and the city successfully defended that rule in the Decker litigation in July 2024. Code enforcement in Meridian is active, not theoretical: the Decker case began with a citation on a private rented lot. Practical options sit just outside town. Canyon Springs RV Resort in Caldwell (about 25 minutes west) markets long-term RV living with paved sites and full hookups, and Garden City (about 15 minutes northeast) permits tiny homes classified as RVs inside designated RV parks and as certified ADUs on residential lots. Boise's 2025 THOW-as-ADU allowance — a NOAH+-certified unit behind a single-family home — is the closest backyard-legal jurisdiction (as of June 2026). Always confirm tiny-home acceptance in writing with any park; several Treasure Valley parks accept conventional RVs only.
co-housing
Meridian, ID (Victory Rd & Meridian Rd)
A 134-unit small-footprint rental development by Alpha Development Group with homes of 650–1,290 sq ft; despite the name (Dutch for 'tiny house'), the city classifies it as multi-family and the units are not THOWs (per BoiseDev, August 21, 2023).
rv-park
Caldwell, ID (~25 min west of Meridian)
Long-term RV living resort with paved sites, gated entry, and full hookups, marketed for extended stays (as of June 2026). Confirm tiny-home acceptance before arrival.
Battle Ground, washington
Battle Ground factory builder producing modular tiny homes, ADUs, and single-family homes. Over 500 homes placed in five years. New 21,000 sq ft factory doubles production capacity to two homes per week.
Service areas: washington, oregon, california, montana, idaho
Boise, Idaho
Custom stick-built ADU and tiny home builder serving the Treasure Valley (Boise area), constructing all units on-site to avoid delivery and craning costs. Founded by Robert Perkins, who brings extensive residential construction experience to every project.
Service areas: Idaho, Treasure Valley
Spokane, Washington
Spokane franchisee of Anchored Tiny Homes, the only national ADU franchise, opened in 2024 by local entrepreneur Matt Goodwin. Builds stick-framed detached and attached ADUs ranging from 240 to 1,200 sq ft across the Inland Northwest. As of May 2026, pricing runs $90,000–$200,000 depending on size and finishes.
Service areas: Washington, Idaho
Hailey, Idaho
NOAH-certified tiny home builder in Hailey, Idaho, specializing in high-performance modular homes designed for mountain living. Builds tiny houses on wheels, backyard ADUs, and smaller foundation homes meeting ANSI building standards.
Service areas: Idaho
Spokane, Washington
Spokane-based custom ADU builder co-founded by Rob Wuls. Designs and constructs accessory dwelling units on-site in the Spokane and North Idaho region, handling permits, design, and build from start to finish. As of May 2026, units range from 300–1,000 sq ft and pricing from $115,000 into the low $200,000s.
Service areas: Washington, Idaho
Spirit Lake, Idaho
THIA-certified tiny home and general contractor in Spirit Lake, North Idaho, building compact dwellings of 100–400 sq ft following IRC Appendix Q standards. BBB Accredited since 2018 with a 4.9-star HomeAdvisor rating.
Service areas: Idaho, North Idaho
A comparison between tiny-home living and conventional homeownership in Meridian.
Tiny home path
Traditional home path
Potential monthly savings
$2,000–$2,600/mo
Source: Zillow Meridian market data, 2026
Verified links for planning, permitting, and community connections in Meridian.
Community
No. Meridian's city code bars any vehicle or trailer — explicitly including mobile tiny houses — from use as a residence outside an approved RV park, and a Fourth District judge upheld the city's position in the Decker case on July 23, 2024 (per BoiseDev; appeal status unconfirmed as of June, 2026).
Resident Chasidy Decker, represented by the Institute for Justice, challenged the city after being ordered out of a THOW parked on a rented residential lot. The court sided with Meridian in July 2024, leaning on the city's unified-ownership requirement for secondary dwellings; her team announced it would seek further review.
Yes. A foundation-built ADU under UDC Title 11 is capped at 900 sq ft or 50% of the primary home (whichever is smaller) with accessory-structure setbacks by district (as of June 2026). City-limits lots permit through Meridian's Building Department; unincorporated Ada County lots with Meridian addresses go through the county.
Treasure Valley builders ran roughly $24,000–$100,000 as of June 2026: Tiny Idahomes in nearby Caldwell has published custom THOW builds from about $24,000 to $68,899, and Idaho builders statewide reach $100,000+ for larger certified models.
Klein Huis at Victory and Meridian Road is a 134-unit small-footprint rental development — classified multi-family, not a THOW community (per BoiseDev, August 2023). For wheels, the nearest long-term options are RV parks such as Canyon Springs RV Resort in Caldwell, ~25 minutes west (as of June 2026).
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