The Longhouse Dogtrot 3.0

3 Bedroom Plan Set

24″x36″ PDF Construction Drawing Set (PDF download only)

The 3-bedroom Longhouse Dogtrot utilizes the same design inspiration as the two-bedroom, but with a little more heated volume, an added bedroom and three storage loft areas (one loft per bedroom space). The flexibility of the three bedroom configuration allows for separate living quarters for up to two groups of guests, or a segregation into either divided or connected studio spaces, workshops, offices, or media rooms. The vaulted ceilings make this 1600 square feet feel much more spacious.

The Swedes first brought the tradition of building log cabins to the United States and one popular way of adding space to early log cabins was to build a separate log cabin next to the original cabin with gables aligned some set distance away. The intervening space between the cabins was then roofed over and made a covered porch space. They perform particularly well in hot climates where the shaded dogtrot area promotes natural convective airflow ventilating the adjacent interior spaces.

What's Included:

  • Cover Sheet
  • General Note Sheet + Schedules (Door, Window, + Hardware)
  • Window/Door Flashing Concept Diagram Sheet
  • Foundation Plan (1/4"=1'-0")
  • Main Level Floor Plan (1/4"=1'-0")
  • Loft/Storage/Mech Level Plan (1/4"=1'-0")
  • Roof Plan + Details (1/4"=1'-0")
  • Window + Door Details (3"=1'-0")
  • Exterior Elevations (2 sheets, 1/4"=1'-0")
  • Building Sections (1/4"=1'-0")
  • Wall Section + Construction Notes (1"=1'-0")
  • Interior Elevations (2 sheets, 1/2"=1'-0")
  • Electrical Plans (1/4"=1'-0")

Additional Specs:

  • 1600 SF (HEATED)
  • 3 Bedrooms
  • 3 Baths
  • Powder Room
  • Living
  • Dining
  • Kitchen
  • Dogtrot/Covered Porch
  • Open Plan Concept
  • Single-Level Living
  • Mechanical Space
  • Decks
  • Solar/Geothermal Compatible

Have more questions? See below + the full FAQ here.


See the plans here

Watch the unboxing video to see everything that's included.


What You'll Need to Provide / Choose (on your own):

  • Local Engineering Review (snow, wind, seismic, etc.) + Local Code Compliance Check
  • Interior, Exterior Material, Finish + Color Selections (some are suggested + shown, but subject to your review)
  • Plumbing Fixture Selections
  • Lighting Fixture Selections
  • Mechanical Systems (heating, cooling, ventilation)

License Agreement

Please see the license agreement for information regarding use of our drawing packages. By purchasing this drawing set you are agreeing to these license terms.

Course Curriculum


  Longhouse Dogtrot 3.0
Available in days
days after you enroll

Frequently Asked Questions


Is this a course?
No, it's a downloadable plan set in PDF form.
What's your refund policy?
As these are digital assets you receive immediately upon purchase I can't offer refunds. If you have questions about what's included, please reach out to [email protected] prior to purchasing so I can answer your queries.
How will I receive the assets?
You'll receive immediate access to download the plan set digitally (PDF). If you choose you can use the PDF to print hardcopies per the license agreement but no hardcopies will be sent to you from 30X40. These will print to scale on Architectural D-sized sheets (36" wide x 24" tall).
What units are the plans dimensioned in?
As I work in the United States, I use the Imperial system (feet-inches) to dimension the plan set.
Can I build more than one home from these plans?
No, the license agreement prohibits this. Please see the license agreement linked above for the full terms.
Will I receive the CAD files too?
No. The drawing set is delivered as a downloadable PDF, the CAD files are intellectual property retained by 30X40 Design Workshop, LLC and not available for purchase.

Get started now!



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Your Instructor


Eric Reinholdt, RA, NCARB
Eric Reinholdt, RA, NCARB

I'm an award-winning architect, entrepreneur and founder of 30X40 Design Workshop, a design studio located on Mount Desert Island, Maine. I'm also author of the Architect + Entrepreneur book series and creator of the most popular architecture-focused YouTube channel online. I've been designing simple, modern residential architecture for more than 25 years and a practitioner of all the novel, entrepreneurial business strategies I teach in my courses.

(More about me in this short film.)