MicroHom

Find a California lot. Then design a hemp home on it.

A real-life community planner for California housing: design a community on a real parcel, with real costs, rules and people.

Search official parcel layers for California counties that publish one. Cards show only what that county sends back.

Ask Chris about a project. Free for now, no obligation. Not an engineering or permit review.

Example of a hempcrete wall at the CDL Green Gallery. Not a MicroHom project. Jnzl's Photos · CC BY 2.0

Pilot areas

Example of Arcata Plaza in Arcata, California. Not a project site. Terrence McNally · CC BY 2.0

County GISArcata / EurekaHumboldt County parcel layer. Arcata Ordinance 1583 adopts Appendix BL and Appendix BB. That is not a permit for a specific lot. Typical land cost per acre: not yet sourced.

Downtown Joshua Tree at Highway 62 and Park Avenue — Example of downtown Joshua Tree at Highway 62 and Park Avenue, June 2017. Not a project site. Glenn Francis (Toglenn) · CC BY-SA 4.0

County GISJoshua TreeSan Bernardino County parcel layer. The record has the APN and the shape, not zoning or a sale price. Typical land cost per acre: not yet sourced.

The Village Lodge walkway in Mammoth Lakes — Example of the Village Lodge walkway in Mammoth Lakes. Not a project site. Nandaro · CC BY-SA 3.0

County GISMammoth LakesMono County tax parcels. Typical land cost per acre: not yet sourced.

Home types

A tiny house on a trailer in Portland, Oregon — Example of a tiny house on a trailer in Portland, Oregon. Not a MicroHom project. Tammy · CC BY 2.0

Wall packageTiny home$16,300–$28,800 estimate, mid $23,600320–400 sq ft hemp-lime cottage, priced on the published 400 sq ft wall package.

A semi-detached house in Namibia — Example of a semi-detached house in Namibia. Not a California lot and not a MicroHom project. National Heritage Council of Namibia · CC BY 4.0

Wall packageDuplex$32,600–$57,600 estimate, mid $47,200Two dwellings, derived as two 400 sq ft wall packages.

A craftsman house with a backyard cottage — Example of a house with a backyard cottage, a converted garage. Not a MicroHom project. Sightline Institute Missing Middle Homes Photo Library · CC BY 2.0

Wall packageADUnot yet sourcedA separate dwelling. The Eureka panel ADU is a precedent, not a price in these reports.

An apartment building in West Valley City, Utah — Example of a multifamily apartment building in West Valley City, Utah. Not hemp construction and not a MicroHom project. An Errant Knight · CC BY-SA 4.0

Wall packageTowernot yet sourcedMid-rise hemp-infill block. The reports do not price it.

The 200 sq ft package is a separate estimate: $11,900–$21,100, mid $17,200. These are wall packages, not turnkey bids.

California figures

The November 3, 2026 Proposition 1 is a proposed $11,250,000,000 bond. Outcome unknown. Homekey+ has about $2,145,000,000 in its amended notice. These are statewide totals. They are not split by county.

Open the data hub · Funding readiness

Hemp-lime

A hempcrete wall at the CDL Green Gallery — Example of a hempcrete wall at the CDL Green Gallery. Not a MicroHom project. Jnzl's Photos · CC BY 2.0

Hemp-lime, also called hempcrete, is the wall material in the sourced packages. The photograph is an example of a hempcrete wall. It is not a MicroHom project. Some cement-heavy mixes are net-positive, so this picture is not a carbon claim.

Idea → ship: five steps to a finished home

MicroHom keeps every step in one place. California is the home base; the materials and builders come from around the world.

Design

Lay out homes on a real California parcel in the planner. A snap-together hempcrete block builder is in preview.

Open the planner

Materials & suppliers

A bill of materials for the whole home, with hemp, bamboo, steel and aluminum, glass, solar and builders worldwide.

Browse suppliers

Funding

California and federal housing programs, with the rules and deadlines from official sources.

See funding programs

Permits

County data and the rules that apply to your parcel, plus how hemp-lime fits the California Residential Code (Appendix BL).

How permits fit in

Build

Hire licensed California pros, who contract with you directly. MicroHom is software, not a contractor. Its pros directory is open for sign-ups and has no members yet.

Pros directory