No problem, I do this frequently. It’s your home it should be just right for you.  The process for customizing your plan is straightforward; it goes like this:

  1. Contact me, via email and I'll review the intended modifications. Be sure to send along any pertinent sketches or a detailed description of the changes you’d like made. From this I’ll develop an estimate for the time it will take to modify the drawings for you to review.

  2. Assuming the estimate and written change description meets your approval, the next step is for you to purchase the plans along with 50% of the time I quoted to modify the drawings. This acts as the deposit and is my cue to begin modifying the drawings per your request. Shortly after I receive the order, I’ll confirm with you via email the expected turn around time, which will depend on the current workload in my studio.

  3. I’ll contact you again when the design changes have been finalized and request the balance of the modification time. Upon receipt of that order, I’ll email you the finalized modified PDF package.

The Longhouse can also be customized by adding flanking ‘studio’ or ‘guest’ modules.  See my plan catalogue or email me to for suggested expanded configurations.


The drawings will be available to you immediately after purchase.  A link to download the PDF file will be sent to the email you purchased with immediately following check-out.


It varies based on the package you select.  There are currently two options available:


Intended for you to review the basic plan layout (18”x24” Sheet Size), this package includes reference floor plans and diagrammatic exterior elevations.  These plans are priced to aid you evaluating whether this is the right design for you.   ( See my ‘unboxing’ video where I go through the drawings you’ll receive).

  • Cover Sheet – notes, license agreement, legend

  • Floor Plans –layout drawings, (BASIC overall dimensions only)

  • Exterior Elevations – showing windows, doors, + exterior materials


Intended to use for permitting, pricing, and construction of the entire project (18”x24” Sheet Size).  The drawings and specifications are detailed and commensurate with the level of service you would expect to receive from a high end architectural design studio.  There’s a huge amount of value included with this package.  (See my ‘unboxing’ video where I walk you through the drawing package you’ll receive).

  • Cover Sheet – notes, license agreement, legend + door, window, hardware schedules

  • Floor Plans – dimensioned layout drawings

  • Foundation Plan – dimensioned

  • Framing Plans

  • Exterior Elevations – showing windows, doors, + exterior materials

  • Building Sections + Details

  • Interior Elevations


No. Because local design conditions, climate concerns and codes vary so widely, it's impossible for me to design a structure that would work for every location. For this reason, the license agreement requires you retain the services of a local engineer to design the structural system for your project.


Plumbing fixture types are shown on the plans, but the set doesn't include rough-in locations or fixture selections. If you'd like help selecting appropriate fixtures, 30X40 can be hired on an hourly basis to aid in the selection process. Plumbing runs and rough-in will be influenced by local codes and must be coordinated with the structural design (see above). As such, these decisions are to coordinated with local subcontractors.


Most sets do not, there are a few that do. If they're included, you'll find them listed in the drawing list. 30X40 can be hired on an hourly basis to develop and customize the lighting plan as needed to suit your design.



This will vary based on your location.  Here in Maine, I typically tell clients to expect the construction costs between $250-350/square foot (this excludes site costs + land acquisition).  It’s also highly dependent on the builder involved and how much of the work you perform yourself.  I constructed The Longhouse for my own family finishing it in 2008 and was able to build it for $113/square foot by doing much of the work myself.  So, there’s definitely some variability in the actual price range.  The Longhouse was designed with efficiency in mind.  The simple plan layout makes for efficient framing and the detailing is intentionally simple.  Cabinetry is modularized and as such some of the construction can be phased.


Yes, and no. You can freely distribute the plans, say for example to Contractors + Subcontractors, so that they’re able to price and build your home, but you can’t freely distribute it to others to construct their homes too.  The plans are licensed for use in constructing only one home. Purchasing the plans means you're bound to the licensing terms, which spell reproduction rights out in more detail. I retain the copyrights for the plans but allow you to use them for the duration of the project.


Absolutely.  I’d be happy to consult with you - at my current hourly rate - and guide any remaining decisions you might need to make or walk you through some of the details.  Contact me via email to schedule a time to talk.


Inspired by the Native American building type and rooted in historical precedent, the Longhouse assimilates the ideas of this simple communal shelter and reinterprets them in a modern design context.  The Longhouse make sensible use of minimal square footage and it does so with bold architectural purpose at 82’ feet in length.  And, while its length is impressive, the footprint weighs in at a mere 1680 square feet.

By elongating the house and preserving a 20’ width, the modest floor area appears much larger.  The central open space with its taller ceiling unifies the kitchen, dining and living functions while allowing for the separation of private sleeping spaces at either end of the plan.  Dividing the ‘public’ and ‘private’ spaces in this way is a hallmark of an architecturally designed home. The hallway ringing the private ‘service’ spaces – the bath, mudroom, pantry, laundry + storage; enhances the perceived sense of space while maintaining a compact layout.  This isn’t a traditional house it feels custom and modern in every way.

The simple forms and humble materials ensure the Longhouse is an economical home to construct.  It’s the perfect home for someone looking to live within a smaller footprint, fits easily on almost any small lot and is particularly well suited to narrow sites.

The home is structured to allow for renovation and modification along the way with exterior bearing walls and a trussed roof renovating to accommodate future needs is baked in to the design.

Need more convincing?  Watch my video where I explain how the design for The Longhouse came to be.


RAD STUDIO charges $100.00 to review plan changes and prepare an estimate for your modifications. This fee can be applied to your plan purchase once you move forward with the modifications. Please call if you would like to order a Plan Modification quote from RAD STUDIO.

Cover Sheet, Index & Site Plan: The cover sheet features an elevation of the exterior of the house that shows approximately how the home will look when built. The index lists the order of the drawings included, with page numbers for easy reference. The site plan is a scaled footprint of the house to help determine how the home will be placed on the building site. 

Wall Sections & Notes: This section shows section cuts of the exterior wall from the roof down through the foundation. These wall sections specify the home’s construction and building materials. They also show the number of stories, type of foundation and the construction of the walls. Roofing materials, insulation, floor framing, wall finishes and elevation heights are all shown and referenced. 

Typical Details & Notes: This section addresses all the facets and typical details you will want to include in your home, with the exception of local building code requirements. Architectural and structural elements are detailed, including: window and door components, railings, balusters, wood stairs and headers, interior walls, interior partitions, concrete steps and footings (if applicable). 

Foundation layout Plan: This sheet provides a fully dimensioned and noted foundation layout, including references to footings, pads, and support walls. For plans with a basement, additional walls and columns may be shown. Basement plans come with a floor framing layout which may be included in this section or the floor framing section, depending on the plan. *Actual structural information should be obtained by a locally licensed engineer for your specific site location. 

Detailed Floor Plan: This section provides detailed floor plan drawings and descriptions of all the elements that will be included on each floor of the home. The home’s exterior footprint, openings and interior rooms are carefully dimensioned. Important features are noted including built-ins, niches and appliances. All doors and windows are identified. Typically this section also includes the square footage information. 

Floor Framing Plans: Homes with a basement or crawl space will have a floor framing plan for the first floor. Multi-story homes will have floor framing plans for upper floors as well. The floor framing plans provide structural information such as the joist location, spacing and direction, as well as the floor heights and stair openings. 

Roof Layout: The overall layout and necessary details for roof design are provided in this section. If trusses are used, we suggest using a local truss manufacturer to design your roof trusses to comply with your local codes and regulations. 

Exterior Elevations: Exterior elevations are drawings that show how the finished home will approximately look. In this section, elevations of the front, rear and left and right sides of the home are shown. Exterior materials, details and heights are noted on these drawings. 

Building Section & Details: This section will illustrate the important changes in the floor, ceiling and roof heights or the relationship of different floors to one another. Interior elements of rooms and areas, such as columns, arches, headers and soffits, are also discernible and easier to visualize in a cross section. 

Electrical Plan: This section shows an electrical plan that will enhance functionality and highlight the unique architectural features of the home.


Reflected Ceiling Plan: One of Sater home’s most distinguishable features is the highly detailed ceiling treatments. This section shows ceiling heights and treatments. It also shows the details, profiles and finishes of the ceiling treatments. Arches and soffits are also specified in this section. 

Interior Elevations: These interior elevations show the specific details and design of the kitchen, bathrooms, utility rooms, fireplaces, bookcases, built-in units and other special interior features. The interior elevations vary based on the complexity of the home. 

» See important information before purchasing.