ADU collection / Haven 1000
1,000 sq ft · Original design concept
Haven 1000
A flexible family-sized layout with two bathrooms, an open living area, and room for guests or a home office.
Starting at $330,000
Two or three bedrooms
Explore your options
Concept floor areaTwo or three bedrooms
Layouts adapted to your property5–8 months
Construction after permits
Step inside
A closer look at Haven 1000.
Original design concept renderings. Finishes and room arrangements are developed for your selected plan.
Compare the arrangement
Two ways to use your space.
Early space-planning diagrams show room relationships, not approved floor plans. Doorways, closets, wall thicknesses, circulation and dimensions are developed in your architectural drawings. Exterior and interior renderings illustrate the design direction.
Make it yours
Explore a layout. Build your estimate.
Layout concepts are subject to site-specific design and approval. Illustrations are not permit drawings.
Illustrative kitchen finish · final selections confirmed during design.
Your home, your priorities
Start with the space you need.
We develop your preferred layout around the property, the way you live, and the finishes you choose. Your written proposal confirms dimensions, specifications and pricing before construction.
Designed for everyday living
- A dedicated kitchen and private bathroom
- Natural light and a connection to the outdoors
- Practical storage and efficient circulation
- Materials and finishes selected with your team
Understand your starting price
$330,000 is a starting estimate for this model. Site work, utility connections, city fees, selected finishes and any changes to scope affect the final proposal.
Design and permitting time is separate from the construction estimate. Your final footprint and placement are developed for your lot.
Good questions about the Haven 1000.
Does the third bedroom add to the starting price?
No. The two-bedroom and three-bedroom layouts share the same $330,000 starting estimate. Your written proposal confirms the final scope and selections.
Does a 1,000 sq ft ADU fit on my lot?
In most cases, yes. California requires cities to allow an ADU of at least 1,000 sq ft when it has more than one bedroom, so a two- or three-bedroom Haven 1000 is inside the size every city must permit. Placement, setbacks and utility routes are confirmed during the property review.
How long does a Haven 1000 take?
Construction takes about 5–8 months after permits are issued. Design, engineering and plan check come before that, and most ADU projects run six months to a year from the first meeting to move-in.
Does the starting price include design and permit fees?
No. The starting estimate is for construction only. Design and permit fees are separate and are itemized in your written proposal. Design and permitting time also comes before the construction timeline begins.
Take the next step
Let’s talk about your Haven 1000.
Share your property location, goals and preferred model with Green Design and Build.
Request a model consultationIllustrative design concept, not a completed project or permit-ready plan. October 2026 starting estimate for Los Angeles and surrounding Southern California service areas. Final design and pricing follow a property review.
Request your model consultation
Your selected model, finishes and estimate will be included with your inquiry.