Martha Stewart prefab homes are four house designs inspired by her own residences, built with Hapi Homes and Marquee Brands. They start at about $150,000 for ADU kits and $450,000 for full-size kits, but those are kit prices, not move-in totals. Price and availability last verified October 2, 2026.
What Are Martha Stewart Prefab Homes?
They are the Martha Stewart Iconic Estate Housing Collection, a set of four home designs offered by Hapi Homes. Martha Stewart provides design direction and her brand. Marquee Brands is also part of the partnership.
Each design comes in two sizes: a full-size primary residence and a smaller accessory dwelling unit (ADU). The collection drew major media coverage in late 2025 and still appears on Hapi’s website in 2026.
One thing to know early: the homes are not exactly what most people picture when they hear “prefab.” We cover that below.
Martha Stewart’s Four Iconic Home Models
The four models are Bedford, Lily Pond, Skylands, and Perry Street. Each is based on a real home tied to Martha Stewart.
| Model | Inspired by | Look | Best for |
| Bedford | 1925 Katonah, NY farmhouse | Clapboard, fieldstone, metal roof | Traditional, New England style |
| Lily Pond | East Hampton coastal cottage | Cedar shingles, stone, gables | Relaxed coastal living |
| Skylands | Seal Harbor, Maine estate | Masonry, low-hipped roof, pergolas | Formal, heritage-style homes |
| Perry Street | Richard Meier-designed Manhattan residence | White walls, flat roof, large glass | Modern, minimalist living |
Bedford uses oak, limestone, and brass inside. Lily Pond leans on bleached oak, natural stone, and aged brass. Skylands keeps the details restrained, with oak and limestone. Perry Street is bright, open, and minimal.
These are inspired designs. They are not copies of her private homes, so avoid using photos of her real houses to show what a buyer would get.
Who Builds the Homes?
Hapi Homes supplies the design, engineering, building system, and logistics, but it says it does not act as the general contractor. A licensed local general contractor (GC), or a Hapi-certified installer, usually handles the site work and assembly.
Martha Stewart and Marquee Brands bring the brand and design vision. Local architects, engineers, lenders, and building officials also play roles, so the project involves many parties.
Are Martha Stewart Homes Modular or Panelized?
They are panelized and site-built, according to Hapi’s own FAQ. Hapi says they are not modular homes, manufactured homes, or volumetric prefab boxes.
Panelized means the structural panels are made off-site, then shipped flat and assembled on your land. Hapi uses cold-formed (light-gauge) steel, with panels cut by CNC machines and openings planned in advance for wiring and plumbing. The home sits on a permanent foundation.
| Feature | Hapi panelized | Modular | Manufactured | Conventional |
| Factory output | Flat panels | Full room modules | Complete sections | Little |
| On-site work | Assembly and finishing | Connecting modules | Installation | Extensive |
| Foundation | Permanent | Usually permanent | Varies | Permanent |
| Code | Site-built codes | Often modular codes | HUD code | Local codes |
Many websites use “prefab,” “modular,” and “manufactured” as if they mean the same thing. They don’t, and the difference can affect financing and appraisals.
How Much Do Martha Stewart Prefab Homes Cost?
Reported starting prices are about $150,000 for an ADU kit and $450,000 for a full-size kit. Some outlets report slightly different ranges, so confirm current pricing with Hapi directly.
ADU and Full-Size Starting Prices
Hapi’s FAQ says kit pricing typically runs about $90 to $150 or more per square foot, depending on specifications. It puts typical total installed cost at about $210 to $300 per square foot, depending on location and scope.
What the Kit Price Includes
Hapi’s system covers the structural panels, and often envelope components, depending on the package. Hapi also says design services are built into the process. Always get a written scope of supply, because package details vary.
Costs Buyers Should Expect on Top
The kit price usually leaves out many costs. Expect to budget for:
- Land and surveying
- Soil testing and site clearing
- Grading and excavation
- Foundation
- Water, sewer, septic, or well
- Electrical and gas connections
- Permits and local fees
- Local contractor labor
- Freight and possible crane access
- Interior finishes and appliances
- Landscaping, taxes, insurance, and financing costs
Example: Suppose you pick a $450,000 full-size kit. The foundation, utilities, labor, and finishes could add a large amount on top. Ask for a full installed-cost estimate, and keep a contingency reserve for surprises.
What Does the Construction Process Include?
It runs from a site check to final inspections, in roughly this order:
- Feasibility: Review zoning, access, utilities, and budget.
- Design and engineering: Choose a model, then adjust finishes and engineering.
- Permitting: Prepare local plans and get approvals.
- Design freeze: Lock the scope before manufacturing.
- Site preparation: Clear, grade, pour the foundation, and bring in utilities.
- Manufacturing and delivery: Panels are cut and shipped flat in sequence.
- Assembly: Crews raise panels, floors, roof, and envelope.
- Finishing and inspections: Install systems, drywall, cabinets, and fixtures, then pass inspections.
Hapi uses a Digital Build Definition, a 3D plan that coordinates the parts before they ship.
How Long Do Martha Stewart Prefab Homes Take to Build?
Hapi says the delivery or installation window is about four to twelve weeks, depending on scope. That is not the full time from purchase to move-in.
Design, permitting, site work, foundation, finishing, and inspections each add time. Permitting alone can take months in some areas. Hapi also claims construction can be up to 40% faster, which is a company claim, not an independent measurement. Ask Hapi exactly what the four-to-twelve-week window covers.
Can Buyers Customize the Designs?
Yes, within limits. Hapi says buyers can change layouts, exterior details, finishes, fixtures, appliances, and systems. Options include solar, batteries, EV charging, and smart-home features.
Major structural changes need extra engineering and can raise costs or delay the schedule. Once you reach design freeze, changes go through change orders. Set the freeze date and the change-order process in writing before you commit.
Where Can These Homes Be Built?
Hapi says it delivers nationwide, but that depends on zoning, building codes, site access, soil, utilities, shipping, and installer availability. “Nationwide delivery” does not mean approval everywhere.
Check these before you buy land or order a kit:
- Truck access and panel storage space
- Soil conditions and slope
- Utility availability
- Local installer and GC availability
Can a Martha Stewart Home Be Used as an ADU?
Yes. Each design is offered in a smaller ADU format. Your city or county still controls whether an ADU is allowed on your lot.
Look up setbacks, height limits, lot coverage, parking, utility rules, and occupancy requirements. Rules in places like California and New York can differ a lot from town to town.
What Are the Advantages of Panelized Steel Construction?
Hapi highlights speed, precision, and lower waste. These figures are Hapi’s claims, not independently audited:
- Up to 40% faster construction
- About 50% lower embodied carbon
- Construction waste under 2%
- About 20% more affordable than comparable conventional builds
- Up to 10% more usable space
Hapi says typical structural steel is 18 to 20 gauge, in 33 to 50 ksi strength grades. Steel can also resist fire well when the wall assemblies are designed properly. Treat the numbers above as a starting point for questions, not proof.
What Are the Main Drawbacks?
The biggest drawback is that the advertised price does not cover the full project. Other risks include:
- Site costs: Foundations and utilities can be expensive.
- Local permitting: Approval timing varies widely.
- Contractor responsibility: You may need to hire and manage a GC.
- Customization limits: Big changes cost more.
- Timeline uncertainty: The 4–12 week window is only one stage.
Steel also needs careful detailing. Ask Hapi how it handles thermal bridging, corrosion protection, fire ratings, and sound control.
How Are These Homes Financed?
Hapi says panelized site-built homes can qualify for standard construction financing and conventional mortgages. That depends on a permanent foundation, code compliance, inspections, and proper documents.
Your lender, appraiser, and insurer make the final call. Talk to them early and get their requirements in writing. A construction-to-permanent loan is a common route for this type of build.
What Warranties Are Included?
Warranty responsibility is split. Hapi’s FAQ separates design and engineering responsibility, component warranties, and the contractor’s workmanship warranty. Ask who handles repairs for each part before you sign.
Martha Stewart Homes vs. the Earlier KB Home Partnership
The current Hapi collection is not the same as her older KB Home communities. Martha Stewart Living Omnimedia and KB Home partnered in 2005. The first community opened near Raleigh, North Carolina, in early 2006, and more followed through 2008.
The new collection is a separate 2025–2026 project with Hapi Homes and Marquee Brands. Old KB Home info will not apply to it.
Questions Buyers Should Ask Before Ordering
Bring these to Hapi and your local contractor:
- What exactly is in the kit, in writing?
- What is the full installed price?
- Who handles permits and engineering?
- What does “four to twelve weeks” cover?
- When is the design freeze, and how do change orders work?
- Are finishes and appliances included?
- How is thermal bridging handled?
- Will my lender treat this as a site-built home?
Conclusion
Martha Stewart prefab homes are a design-led housing collection, not a typical manufactured-home line. The key issue is the gap between the kit price and the total installed cost. Before you commit, confirm current pricing, local approval, site feasibility, contractor responsibility, financing, and delivery timing directly with Hapi Homes.
FAQs
Are Martha Stewart prefab homes available now?
Hapi’s website still promotes the collection in 2026. The process looks more like early access and consultation than a simple online checkout, so confirm availability with Hapi.
Are the advertised prices all-inclusive?
No. The $150,000 and $450,000 figures are starting kit prices. Land, foundation, utilities, permits, labor, and finishes are extra.
Can buyers place one on any land?
Not necessarily. Zoning, building codes, site access, soil, and utilities all affect whether a lot works.
Does Hapi Homes provide the general contractor?
No. Hapi says it is not the general contractor. You may need a licensed local GC or a Hapi-certified installer.
Can buyers get a conventional mortgage?
Hapi says it is possible when the home has a permanent foundation, meets code, and is properly inspected and documented. Your lender makes the final decision.
How much customization is possible?
Layouts, finishes, fixtures, and systems can be customized. Major structural changes cost more and can slow the project.