Willowherb

1006 SQ FT | 2 BEDROOMS | 2 BATHS | 2 BAYS | 40 FT WIDE | 30 FT DEEP

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Willowherb

Digital PDF Plan Set

$1,100.00

Willowherb

Modern Mountain Carriage House ADU with Vaulted Ceilings

$1,100.00

IMAGES MAY SHOW MODIFICATIONS MADE TO ORIGINAL PLANS. COPYRIGHT OWNED BY THE DESIGNER.

House Plan Features:

774 sq ft vaulted living space above an oversized two-car garage

Interior spiral staircase and exterior stairs for convenient access

Expansive 265 sq ft wraparound deck, partially covered for indoor-outdoor living

Square Footage
Main Level	232 sf
Upper Level	774 sf
Total Finished	1006 sf
Garage Level	541 sf
Garage	541 sf
Outdoor Living
Covered Deck	105 sf
Deck	160 sf

Other Specifications
Bedrooms	2
Full Bathrooms	2
Garage Bays	2
Garage Entry	Front
Width of House	40 ft
Depth of House	30 ft
Building Height	28 ft
Foundation Type	Slab
Exterior Wall Construction	2x6
Ceiling Height — Main Level	10'
Ceiling Height — Upper Level	8', Vaulted
Roof Pitches	5/12

Willowherb is a modern mountain carriage house ADU, blending rustic lodge aesthetics with contemporary design. This versatile home is perfect for those seeking extra space, a rental unit, or a small vacation home, offering 774 square feet of vaulted living space above an oversized two-car garage.

With timber trusses, stonework, and natural materials, Willowherb embraces the warmth and character of a mountain retreat, making it ideal for upscale communities, rural escapes, or luxurious backyard additions.

Designed for flexibility and function, this plan includes a spacious garage level with workshop space and a full bath, and an upper-level open-concept living area with a wraparound deck, perfect for entertaining and relaxation.

Key Features of the Willowherb Plan

Modern Mountain Cabin Design: Lodge-inspired exterior with timber trusses, stone accents, and natural materials, perfect for upscale or mountain settings.
Oversized Two-Car Garage: Spacious garage with a workbench area, mechanical room, and full bathroom, ideal for workshops, projects, and outdoor gear storage.
Flexible Access Options: Exterior stairs lead to the upper-level entry, while a spiral staircase inside provides convenient interior access.
Vaulted Living Spaces: The open-concept kitchen and living room feature soaring 12'-8" ceilings, creating an airy, spacious feel.
Expansive Wraparound Deck: A partially covered 265-square-foot deck extends the living space outdoors, wrapping from the front to the right side for stunning views and relaxation.
Comfortable Primary Suite: Vaulted ceilings, a closet, and ensuite bath access make this bedroom a serene retreat.
Versatile Second Bedroom: Perfect for guests, family, or a home office, offering flexibility for short-term rentals or full-time living.

Ideal for Rental Income, Guests, or a Private Retreat

The Willowherb plan is a smart investment for homeowners, builders, and vacation property owners looking for a stylish and functional ADU. Whether used as a rental unit, guest house, or mountain getaway, this compact yet highly efficient layout provides both comfort and practicality.

The garage level’s oversized layout, workshop space, and full bath add exceptional functionality, while the upper-level living space and wraparound deck create a welcoming retreat for residents and guests alike.

With its mountain lodge appeal, modern finishes, and thoughtful design, Willowherb is an elegant and adaptable addition to any property.

Why Choose the Willowherb Plan?

Versatile ADU: Ideal for rental income, guest accommodations, or a private retreat.
Mountain Lodge Charm: Timber trusses, stone accents, and natural materials create a rustic yet refined aesthetic.
Oversized Garage & Workshop: A spacious two-car garage with workbench space, a mechanical room, and a full bath for added functionality.
Vaulted Ceilings: 12'-8" ceilings in the living area and primary bedroom enhance the sense of space and openness.
Expansive Deck: 265-square-foot wraparound deck, partially covered for indoor-outdoor living.
Flexible Second Bedroom: Use as a guest room, home office, or rental suite.

Find Your Perfect Carriage House or Vacation Home

If you’re looking for a modern mountain ADU with lodge-style charm, Willowherb is the perfect fit. Explore more carriage house and ADU plans to find the ideal design for your property today!

Questions About Willowherb:

Every Rocky Mountain Plan Company plan is a complete digital plan set: floor plans, exterior elevations, cross-sections, roof ridge plan, foundation layout, and electrical plan. You choose PDF or CAD at checkout, and a single-use build license is included.

A few things are handled locally by design, because they depend on your lot, climate, and code: the site plan showing where the home sits, site-specific structural engineering, mechanical/plumbing/HVAC drawings, energy calculations, and a professional stamp if your state requires one (states including CA, NY, NJ, IL, and NV often do). Your builder, engineer, and subcontractors add these during the build. It's the normal division of labor in residential construction, not a gap in the plans. See exactly what's in every plan set →

Our plans don't come pre-stamped, and that's standard across the pre-drawn plan industry, not a gap in the design. Most jurisdictions require a licensed local engineer to review the plans for your specific site conditions (snow load, wind zone, seismic zone, soil) and apply their stamp before issuing a building permit. Mountain and hillside lots especially tend to trigger this. If you'd like a referral to a trusted engineering firm, just ask. How engineering and permitting work →

We offer Bid Sets for $500. A Bid Set includes the floor plans and elevation views, labeled "Not For Construction," and is ideal for getting an initial cost estimate from a builder before committing to the full plan. If you move forward, the $500 applies as credit toward your full plan purchase. Contact us to request a Bid Set →

PDF works for most builds — ready to print and share with contractors and inspectors, suitable when no significant changes are needed. CAD files (.dwg) are fully editable and the preferred format if you're making meaningful modifications, or your designer or engineer wants to work directly in the files. Buying CAD also includes the PDF set. Not sure? Start with PDF, you can always come back and add CAD later. Full comparison: PDF vs. CAD →

Yes, and it's completely expected. Most buyers change at least something. Your best first call is a local designer, architect, or engineer who knows your area's codes and site conditions. Modifications range from minor on-site builder adjustments and redline markups to CAD-level layout changes and full redesigns. See how modifications work →

If you simply want to flip the layout to suit your lot or view, choose a right-reading reverse when adding the plan to your cart. This will mirror the plan while keeping every dimension and note readable. For anything more, reach out and we'll point you in the right direction. How right-reading reverse works →

Your purchase includes a Single-Structure License: the right to build this plan once, on one lot. You can print as many copies as your build team needs and share them with your builder, engineer, and municipality for that project.

Planning to build more than once? An Unlimited Building License is available for selection now or any time after. Plain-English license overview →

Standard digital delivery is 1–2 business days after your signed license, Monday through Friday. (Weekend orders begin processing Monday.) Add-ons like a right-reading reverse or an alternate foundation add 3–4 business days. Files are delivered by email once your license is signed.