Buying a modular home in Delaware can be an exciting way to build a new home without following the traditional stick-built construction process from start to finish. But before choosing a floor plan, homeowners need to understand how to legally place a modular home on their property.
Seems like an easy answer but it can actually depend on several factors including your property’s zoning, whether the land is inside an incorporated town or city, local setback requirements, building permits, and utility availability.
The good news is that modular homes are recognized as residential housing in Delaware! However, approval for a specific home on a specific property is determined locally. That means a homeowner in Sussex County may face different zoning or building requirements than someone in Kent or New Castle County.
Zook Cabins has been guiding homeowners for over two decades from initial vision to settling into their beautiful new home. Our guide walks you through the major regulations homeowners should understand before planning a modular home project in Delaware.
Modular Home Requirements by County
| Kent County | County Zoning |
| New Castle County | ADU RequirementsNew Castle County Housing Initiatives2021 International Residential Code (IRC)Land Use Department |
| Sussex County | Permit Office |
Does Kent County, DE Allow Modular Homes?
It sure does! Kent County generally allows modular homes, though whether one can be placed on a particular property depends on the parcel’s zoning and building permit requirements. For a modular home intended as a permanent single-family residence, the first step is determining the property’s zoning district and whether the proposed home is permitted as a principal residential structure.
Kent County is actually more specific than some counties when it comes to setbacks. For principal residential structures outside the Growth Zone Overlay District, the AC, AR, RS1, RS5, RMH, and RM zoning districts currently require a 30-foot front setback on a subdivision street (40 feet on a nonsubdivision street), a 15-foot side setback, and a 30-foot rear setback, with a maximum building height of 35 feet in most of these districts and 50 feet in RM.
Minimum frontage and lot-width requirements apply too. AC and AR properties generally need 200 feet of frontage and 150 feet of lot width, while RS1, RS5, RMH, and RM properties generally need 150 feet of frontage and 100 feet of lot width. Separate minimum lot size and density requirements may apply under the county’s subdivision regulations.
A permanent modular home project should expect county review and permitting before construction or installation begins, with applications available online through the county’s My Government Online system; the county specifically directs homeowners to verify setbacks before submitting a project.
To move ahead, confirm zoning requirements with Kent County Zoning then work with your local departments for exact details.
Does New Castle County, DE Allow Modular Homes?
Yes, New Castle County does allow modular homes, but classification matters more here than in some other counties. The county defines a modular home as a single- or multi-sectional home built to approved building-code provisions, and it also publishes separate requirements for manufactured/modular homes that aren’t defined as single-family dwellings under the County Code. Because not every structure marketed as “modular” is regulated the same way, it’s worth verifying with the county how a specific model will be classified before ordering a home.
Zoning in New Castle County runs through Chapter 40, its Unified Development Code, which includes residential districts like Traditional Neighborhood, Suburban Transition, Manufactured Mobile Home, Suburban, Suburban Estate, Suburban Reserve, and Neighborhood Conservation. The county updated its online zoning information to reference a UDC amended August 4, 2026, so it’s important to reference the current code rather than an older zoning table when determining what’s permitted on a given parcel.
The county also offers zoning certification, which can confirm a parcel’s zoning district and whether an intended use is permitted, and this can be especially useful for anyone considering vacant land for a modular home. Depending on the site, additional approvals may be needed, such as a sewer agreement from the county’s Department of Public Works, DNREC septic approval for an on-site system, or DNREC well approval for a private well. Larger projects, like those involving subdivision of land, may also require a land development plan, and a Certificate of Occupancy is required before the home can be inhabited.
Take the next step by contacting the New Castle Zoning and Planning Department.
Does Sussex County, DE Allow Modular Homes?
Yes! Sussex County does allow modular homes, particularly on appropriately zoned residential or agricultural-residential land, with the AR-1 and AR-2 Agricultural-Residential districts being the most common fit for homeowners looking to build or place a home on an individual lot. A modular home built to standard building codes is generally permitted and reviewed as a permanent structure.
Setbacks, however, vary quite a bit depending on the parcel. There’s no single countywide number that applies to every property. You may also come across a 100-foot setback referenced in the county code, but that applies only to a specific development program, not to a typical homeowner building a single modular home on an individual lot. The actual setback requirements need to be checked against the parcel’s real zoning district and any recorded development approvals.
Permits are also required for single-family dwellings. Beyond the core zoning and building permits, homeowners should expect potential site approvals related to septic systems, private wells, public utilities, driveway or entrance access, stormwater requirements, floodplain development, and survey or site-plan requirements.
Given all this, it’s worth confirming your parcel’s zoning district, verifying the actual setback and permit requirements for that specific lot, and checking in with Sussex County Planning & Zoning early.
Looking for a Modular Home Builder Serving Delaware?
Building a new home involves much more than choosing a floor plan.
At Zook Cabins, we help homeowners explore modular home designs for the way they actually want to live, from compact homes for a smaller property to larger multi-bedroom floor plans for growing families and long-term living.
We know it isn’t easy to find a builder you can trust, but we want to make it easy for you.
Our team can help you explore available modular home designs and discuss the vision for your new home then we handle the heavy lifting. From design to installation we walk with you every step of the way.
Frequently Asked Questions about Modular Homes in Delaware:
What Kind of Foundation Does A Modular Home Need in Delaware?
A modular home requires a permanent foundation designed and approved for the specific home and site.
The most common residential foundation options are crawl space and basement foundations. Crawlspaces offer more affordable pricing while basements are popular for the additional living space.
Before purchasing your home, ask the local building department what foundation plans and engineering documentation must be submitted with your permit application.
If you want to learn more, don’t miss our ultimate foundations guide or our clear comparison article between crawlspaces and basements.
Can Modular Homes Be Used As ADUs?
Yes.
Accessory dwelling units are technically just smaller modular homes, making a smaller modular model an ideal choice for an ADU. Local zoning dictates how and where ADUs can be placed.
In New Castle County, for example, only one ADU is permitted per single-family residential detached lot. The property owner must occupy either the principal dwelling or the ADU as a principal legal residence, and the ADU requires an additional off-street parking space. On lots of one-half acre or more, a freestanding accessory structure may be used as an ADU if it meets the applicable setbacks for a principal dwelling.
New Castle County has also reduced the acreage requirement for detached ADUs from 2 acres to 0.5 acres and expanded opportunities for small single-family homes to be used as ADUs.
Kent County also permits ADUs in residential zones subject to applicable regulations, although its ordinance specifically states that manufactured homes may not be used as ADUs. That does not automatically answer whether every type of code-compliant modular home qualifies, so homeowners should obtain confirmation from the county before proceeding.
We’ve put together an ADU regulations guide for Delaware that you might find helpful.
Curious what an ADU actually is? Check out our compilation of helpful resources, from ADU foundations to financing an ADU and more!
Does Delaware Require Land to Already Be Owned Before Buying a Modular Home?
No, Delaware does not generally require you to own land before purchasing a modular home.
However, purchasing a modular home before confirming where it can legally be placed can create serious problems.
You’ll want to verify things like zoning and setbacks, utility availability, property access and more.
In New Castle County, homeowners are specifically reminded that deed restrictions may exist and that it is the property owner’s responsibility to review them before submitting permit applications.
You do not necessarily need to own the land before choosing a modular home, but you should know that your chosen home can legally fit and be permitted on the property before moving too far into the purchase process.
What Utility Hookups Are Required for a Modular Home in Delaware?
A modular home needs access to the utility connections required for a traditional single-family dwelling. This includes:
- Electricity
- Water
- Wastewater disposal
- Heating fuel or gas service, when applicable
Properties without public water and sewer may require a private well and onsite wastewater system. In Delaware, DNREC oversees residential water wells and onsite wastewater systems.
For a new septic system, DNREC describes a three-step approval process:
- Site evaluation
- System design and permitting
- Installation
Homeowners who need a new modular home septic system will need to budget accordingly and get started early for a smooth installation process.
Modular homes from Zook Cabins come with all utility rough ins ready to go so all that’s left is hooking them up on installation day.
What Are Modular Homes and Are They Allowed in Delaware?
A modular home is a home built in sections in a controlled factory environment and then transported to the building site for installation and completion. A modular home is also constructed to the building-code requirements applicable to the location where it will be installed.
The good news is that modular homes are allowed in Delaware and regulated like a site-built home. However, there aren’t state-wide regulations for modular homes; instead, Delaware’s counties and municipalities control local land use, zoning, permits, and many site-development requirements.
Modular homes offer faster build times without compromising on quality or affordability. If you’re curious how the construction process works, we break it all down in this clear article.
What Is the Difference Between a Modular Home and a HUD Manufactured Home?
“But aren’t modular homes and manufactured homes the same thing?” We hear this a lot and we understand why people might think this. Both houses are built in off-site facilities and installed on site. However, these homes have different construction standards and a few other critical differences.
A modular home is built in a factory to the local building codes and is installed on a site as a permanent residence. Modular homes are permanent and often indistinguishable from site-built homes.
In contrast, a manufactured home is built to the federal Manufactured Home Construction and Safety Standards administered by the U.S. Department of Housing and Urban Development. HUD-certified homes are built on a permanent steel chassis and securely installed, but technically still moveable if needed.
Because modular and manufactured homes are regulated differently, homeowners should always use the correct classification when discussing their project with local zoning and building officials.
How Close Can a Modular Home Be to Property Lines?
While we all love straightforward numbers, there is no single statewide setback distance for every modular home in Delaware.
Instead, setbacks depend on the county or municipal jurisdiction and the zoning district. Generally, side setbacks are 5-15 feet with rear and front setbacks about 20-30 feet.
The safest next step is to provide the zoning office with your parcel number and a site plan showing the proposed home’s dimensions and location.
Do You Need A Permit For A Modular Home in Delaware?
Yes, you definitely will. Delaware law authorizes county governments to regulate building construction and issue building permits, and county permitting departments administer their local requirements.
Depending on your project, approvals may include:
- Zoning approval
- Building permit
- Site plan or plot plan review
- Foundation approval
- Electrical permit
- Plumbing permit
- Septic approval
- Well approval
- Sewer connection approval
- Driveway or entrance approval
- Certificate of occupancy
To learn more about required permits, we recommend you visit your local building department and find out what your municipality requires.
What Size Modular Homes Does Zook Cabins Have to Offer?
Every homeowner has different needs. Some are looking for a compact home for a smaller household, while others need enough space for children, guests, home offices, or multigenerational living.
Zook Cabins offers modular home designs ranging from 656 square feet to nearly 3,000 square feet among the models below.
Check out a sampling of the wide range of sizes we offer:
| Zook Cabins model | Finished size |
| The Spruce | 656 sq. ft. |
| The Lariat | 768 sq. ft. |
| The Two Pines | 935–1,269 sq. ft. |
| The Woodland | 738–1,442 sq. ft. |
| The Glacier | 1,039–1,971 sq. ft. |
| The Timberline | 1,451–1,780 sq. ft. |
| The A-Frame Lodge | 1,650–2,135 sq. ft. |
| The Canyon Lodge | 1,790–2,926 sq. ft. |
| The Homestead | 936–2,979 sq. ft. |
What Features are Included in a Modular Home from Zook Cabins?
It’s the finishing touches that truly make a house feel like a home, right? We think so too.
That’s why Zook Cabins offers a variety of floor plans with features that take the homes to the next level. Features like:
- Open-concept living areas
- Multiple bedrooms
- Spacious kitchens with modern design
- Dining areas
- Loft or additional living space
- Primary bedroom suites
- Porches and outdoor living areas
- Modern farmhouse, cabin, lodge, and other architectural styles
Request a free quote today to learn more about the special features included in your model.
Does Zook Cabins Have Modular Homes with Multiple Bedrooms and Bathrooms?
Absolutely. Here’s a breakdown of our models and the number of bathrooms and bedrooms they each include.
One-Bedroom Modular Homes
| Model | Bathrooms |
| The Wrangler | 1 |
| The Spruce | 1 |
| The A-Frame Retreat | 1 |
| The Mountaineer | 1–2 |
| The Mountaineer Deluxe | 1–2 |
| The Musketeer | 1–2.5 |
| The Chalet | 1–2 |
| The Glacier | 1–2 |
| The Canyon Lodge | 2–2.5 |
| The Homestead | 1–3 |
Two-Bedroom Modular Homes
| Model | Bathrooms |
| The Lariat | 1 |
| The Juniper | 1 |
| The Timberline | 2 |
| The Mountaineer | 1–2 |
| The Mountaineer Deluxe | 1–2 |
| The Musketeer | 1–2.5 |
| The Chalet | 1–2 |
| The Glacier | 1–2 |
| The Alpine | 1–2 |
| The Frontier | 1–2 |
Three-Bedroom Modular Homes
| Model | Bathrooms |
| The Alpine | 1-2 |
| The Chalet | 1-2 |
| The Frontier | 1-2 |
| The Glacier | 1-2 |
| The Homestead | 1-3 |
| The Mountaineer | 1-2 |
| The Mountaineer Deluxe | 1-2 |
| The Pioneer | 1-2.5 |
| The Settler | 1-2 |
| The Sunset Ridge | 1-2 |
| The Two Pines | 2 |
| The Woodland | 1-2 |
| The A-Frame Lodge | 2-3 |
| The Walden Stack | 3 |
Four-Bedroom Modular Homes
| Model | Bathrooms |
| The Canyon Lodge | 2–2.5 |
| The Homestead | 1–3 |
Can A Modular Home from Zook Cabins be Customized?
One of the advantages of choosing a modular home from Zook Cabins is the ability to start with the basic floor plan and then finalize options that fit your unique news.
Depending on the model, customization options may include changes to finishes, layouts, features, and other design selections.
Contact our team today to learn how you can make your new modular home feel like your own.
Do Modular Homes Have Good Resale in Delaware?
They sure do. Contrary to old belief, factory built doesn’t equal low quality. The truth is, Fannie Mae doesn’t differentiate between modular homes and traditional site-built homes in terms of resale value and comparable sales. That’s great news for interested homeowners!
As with any home, resale value ultimately depends on factors such as location, quality of the home and land ownership.
Learn more about the truth of modular home resale value or answer your financing questions in our modular home financing guide.
Conclusion
Building a modular home in Delaware is absolutely possible but success starts long before the home arrives on your property.
Before choosing your final floor plan, take the time to confirm zoning, setbacks, permits, foundation, and utilities.
Then you can choose a home knowing that it is designed not only for your family, but also for the property where you plan to build.
If you want an experienced team to walk alongside you, call Zook Cabins today! We’d love to help you dwell beyond the ordinary.