Home renovations are becoming more common ever since individuals have started to stay at home more often. In addition to that, home renovations are becoming familiar since everyone is trying to make their living spaces functional.

Because there are so many factors to take into account, estimating the cost of a duplex home renovation might seem like an intimidating task. After gathering costs for various renovations directly from the homeowners, we will break down how much duplex home renovation cost in this post.

Moreover, we will be covering the total and specific costs of renovating a duplex home. If you are thinking of renovating your duplex home, this might be the ideal place for you to start.

Let’s Start with How Much Does Duplex Home Renovation Cost?

Based on a study by Houzz, covering the top 50 metro areas in America,

  • The average cost of remodeling a home is $15,000.

However, this suggested expenditure for renovation may vary depending on the type of property and duplex. With that said, if you are thinking of switching to a new duplex home rather than renovating one, start searching with local MLS listings.

According to the room or update, the National Association of Home Builders (NAHB) recommends investing a specific proportion of the home’s overall worth. Perhaps, the chart will provide better insights –

Renovation type Expected cost based on the home’s overall worth
Living area


Standard Bedroom

1 – 3%

Primary bedroom




Primary bathroom


Secondary bathroom



2 – 4%


3 – 4%


3 – 5%

Backyard or patio

2 – 5%

Basement or attic

10 – 15%

Source: National Association of Home Builders (NAHB)

Cost of the Entire Duplex Home Renovation

A home renovation typically costs between $15,000 and $200,000. The cost might vary significantly depending on the labor and quality of the materials. Generally, there are 3 categories for remodeling a duplex home.

  • High-end renovation – A significant renovation using high-end items and designer resources.
  • Medium renovation – A typical mid-range remodeling using materials and supplies for average homes.
  • Low-end renovation – A minor improvement and remodeling for starter houses. This type of renovation often involves extensive use of cheap, frequently DIY-funded items.

Perhaps, the following chart gathered from Realtor.com might give you an average idea for each type of renovation –

Renovation Type Total Cost
Low-end renovation $25,000 to $45,000
Medium renovation $46,000 to $75,000
High-end renovation $76,000 and above

Source: Realtor.com

Some Influencing Factors for the Cost of Duplex Home Renovations

It is crucial to include all potential factors that can affect the project’s final cost when you acquire quotations from prospective contractors. Here are some mentionable factors that can increase the total cost of remodeling your duplex home –

1) Cost for Materials

Several building supplies are becoming more expensive as well. For instance, the price of timber has been exceptionally unstable recently. Among the commodities whose prices have increased recently is steel. However, if you’re not undertaking a significant renovation, you might not require much steel or timber to finish your job.

2) Cost for Labor

You will have to pay labor fees if you are renovating significantly. The labor cost includes more than simply the salaries of the workers. Here is a breakdown –

Architect fees From $125 to $250/hour
Contractor fees From 10% to 20% of the whole project
Electrician fees From $50 to $100/hour
HVAC service charges From $50 to $150/hour
Plumber fees From $45 to $200/hour
Painter fees From $20 to $50/hour
Park designer fees From $50 to $150/hour
Interior designer fees From $50 to $200/hour
Kitchen designer fees From $65 to $250/per hour

3) Cost for Permits

You can’t escape the permit costs for renovating a duplex house. For small renovations, the cost is around $50 to $300. As for major renovations, the cost can start from $400 to $1,800. Why do you need permits for renovating a duplex home? Yes, a duplex home may require the following permits while renovating –

  • For home additions.
  • For a new assembly.
  • For changing the structure.
  • For plumbing, electrical, or mechanical works.

4) Cost of Home Additions

On average, you may have to spend somewhere between $22,500 and $80,100 to add new segments to your duplex home. But the cost can increase up to $150,000 depending on the number of additives and finishing materials.

5) Cost of Modifying Floor Plans

To change or modify floor plans, you may have to consult a structural engineer. The engineer will charge from $350 to $750 based on his expertise. This is crucial to guarantee that your ideas are carried out properly and safely.

6) Cost of Updating Products

The approximate price of an appliance might range between $100 and $10,000. There are several factors to consider when updating appliances. Even though costs might quickly rise, restricting your alternatives to the bare minimum can be harmful.

7) Cost of Code Regulations

For minor projects, code regulations may not be so important. But for bigger improvements, they may cause delays that increase your labor expenses. For instance, an electrician may need 50% more time to complete work in one city compared to another due to the numerous regulatory standards.

So, how much does duplex home renovation cost? We believe you have got the answer after reading this post. When you are ready, speak with a local contractor to get the precise costs in your region. The price of a home remodeling project will vary depending on the size, floor space, fundamental problems, region, and chosen materials.

It is difficult to remodel and renovate a duplex home. But a joyful household may enhance your well-being. Before starting the project, you should be prepared to take everything into account since the planning and renovation procedures of a duplex home take time.