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How Much Does It Cost To Build A Duplex?

By: ROS Team

Building a duplex can be one of the best decisions you can make, or is it?

Determining the cost of building a duplex can be complex. It depends on multiple factors like the property’s size, the construction type, and your location.

Let’s try and find out how much it costs to build a duplex and the various factors affecting costs.

What is a Duplex Home?

A duplex is a house with two units that share one common wall. A top floor is a separate unit from the bottom, and it can be a two or three-story building, with one or two units on each floor. It is typically designed with two entrances and kitchens.

Duplexes are often used as rental properties and can be found in suburban and rural areas as well as urban areas. They are typically more affordable than single-family homes because they have lower land costs and they use lesser building materials.

Average Cost to Build a Duplex

Lowest Cost – $150,500

Average Cost – $390,000

High Cost – $1,200,000

What Factors Affect The Cost Of Build A Duplex?

Several factors affect the cost of building a duplex. The land’s size, location, and condition can all impact the cost. Some other factors such as; earthquake-proofing, unique architectural features, and if it is built from scratch or as an extension also add to the cost.

Factors Affect the Cost of Build a Duplex
Photo Credit: Canva

 

1. Location

Your lot’s location impacts how much it will cost to build your duplex. If your lot is near public transportation like buses or trains, it will facilitate easy transportation for visitors and workers. The location also impacts the cost and availability of labor.

2. Lot Size

The size of the lot plays a vital role in determining how much it will cost to build a duplex. Smaller lots will be cheaper because they require fewer materials and labor than larger ones.

3. Design and Style

Design and style are the two most important factors that affect cost.

The design and style can also depend on the region where it is being built. Some prefer modern styles like open floor plans, while others prefer traditional two-story homes with garages.

If you are looking to build affordably, go for a simple design, as it won’t cost much to build.

4. Building Materials

The materials used determine the quality and durability of the construction. For example, wood is cheaper than steel or concrete. However, it is not as durable and takes more time to install than steel and concrete.

The type of roofing material will also affect the overall cost; roofing materials like slate or metal are more expensive than asphalt shingles.

5. Construction Costs (Labor and Materials)

The cost of construction in the US varies in different states. However, they are a major factor that affects the overall cost of building a duplex in the USA.

For example, construction labor rates in California are higher than in other parts of the country. In addition, there are also differences in construction costs depending on whether you hire union or non-union workers.

Materials prices vary depending on the quality and type. For example, if you want to use steel instead of wood, a higher quality wood or steel can make the price go up.

Some Other Factors Affecting the Duplex Price?

Factors Affecting the Duplex Price
Photo Credit: Canva

 

1. Site Preparation Costs

Site preparation costs are the expenses incurred before construction begins. These include surveys and studies, demolition of existing structures, and removal of trees along with other vegetation that might interfere with construction.

2. Architect Fees

The architect fee will depend on their experience, the size of their company, their location, and how much work they want to do for you. Typically an architect’s fee is a percentage of the total construction cost.

3. Financing

Financing is a factor that affects the cost of building a duplex. There are two types of financing: home equity and mortgage loans.

Home-equity loans are great for people with equity in their homes or who have already paid off their home mortgages.

Mortgage loans are better for people who don’t own their homes and want to purchase them outright.

4. Furniture, Fixtures, and Equipment (FF&E)

To build a duplex- furniture, fixtures, and equipment are essential. The cost of these will depend on the quality of the material and its price.

Pros and Cons of Building a Duplex

Pros:

Cons:

  • The construction process takes time and money.
  • You will need to pay for utilities like water and electricity during construction and after that.
  • It may take longer for the house to sell than it would if it was a single-family home.

 

Choosing a Duplex Home
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Choosing a Duplex Home

Many factors affect the cost of building a duplex.

The total amount of money spent on construction depends on multiple factors, and to know more about the costs associated with building a new home, it would be best to consult your local builder.

They will be able to provide you with current market prices and help you decide what type of construction would work best for you.

FAQs: Cost of Building A Duplex

How much is the cheapest duplex to build?

Many variables go into calculating the cost of building a duplex. However, the lowest cost to build a duplex can be $150,500.

How much is the average cost to build a duplex?

The average cost to build a duplex is $390,000. Depending on the project’s location, size, and complexity, it can go higher or lower.

Does a duplex home go up in value?

A duplex home, where two units are attached, can be worth more than a single-family home. This is because the duplex has a greater potential for rental income.

What does a duplex home look like?

A typical duplex has two units, each with its entrance and living space or kitchen. The units share walls but have roofs, which means they don’t share a common exterior wall.

Related Article:

Duplex House: Everything You Must Know
Duplex VS Apartments