What adds more value, an attached or detached garage?

Author: Juanita Connelly  |  Last update: Tuesday, March 17, 2026

A detached garage will usually cost 10% to 15% more than an attached garage. So, is building a garage worth that investment? The average ROI of a garage addition is 64% to 81%, which equates to an estimated $20,000 to $35,000 addition on your home value.

Is it better to have a detached garage or attached?

Detached garages primarily sacrifice a small amount of convenience for an increase in flexibility and the added safety of not having as easy of an access point into your home. These are the primary factors that make detached garages stand out from attached garages, but otherwise offer most of the same benefits.

Does an attached garage raise insurance?

1. Replacement Cost: Increased Value: More garage spaces often mean a larger home footprint, which can increase the replacement cost of the home. Insurers calculate premiums based on the cost to rebuild your home, so a higher replacement cost can lead to higher premiums.

How does a garage affect the appraisal?

The size of the garage greatly affects its appraisal value. Larger garages typically add more value to a home due to the additional space for vehicles or storage. For instance, a two-car garage will generally be appraised higher than a single-car garage because it offers more space and functionality.

Is it cheaper to have an attached garage?

Attached garages have many benefits to homeowners, including: Convenient to use, especially in bad weather. Less expensive to build.

The Real Estate Value of a Garage Addition

Is it worth adding an attached garage?

According to Forbes, homeowners can see up to a 65% return on investment (ROI) when they add a garage. It not only increases your home's value but also improves its appeal and functionality. A garage provides secure storage for vehicles, tools, and other belongings.

Why are detached garages more expensive?

On the other hand, detached garages provide more design flexibility and privacy, but their standalone structure often results in higher costs due to the need for a separate foundation and utility installation.

What adds the most value to an appraisal?

Use the area around your home to boost its appraisal value
  • Improve your house's curb appeal. ...
  • Mow and clean up your yard. ...
  • Examine the exterior of your home. ...
  • Document all of your home upgrades. ...
  • Give your home a deep cleaning. ...
  • Patch up any imperfections. ...
  • Let the appraiser do their job. ...
  • Be open to the appraiser's questions.

What is the ROI of a detached garage?

Beyond providing additional storage and parking space, a garage can notably increase your home's resale value, with an average return on investment (ROI) ranging from 64% to 81%, depending on factors like location, design, and materials used.

Does an attached garage count as square footage?

Does the garage count in the square footage of a house? The garage does not count towards the square footage of a house, as that is considered an unfinished space. A garage will only count towards the square footage of a home is if it has been legally converted into a living space.

Why do homes have detached garages?

Detached garages are more than just places to park your car—they're versatile storage powerhouses that help keep your home organized and clutter-free. Whether you need extra room for vehicles, tools, or seasonal items, a detached garage provides secure and dedicated storage space that's easily accessible.

Is a detached garage covered under homeowners insurance?

Whether you have a detached garage filled with vehicles and ATVs or have it set up as the ultimate party spot, you'll be happy to know that your garage and belongings are safe under other structures coverage. All garages, whether attached or not, are covered by a homeowners insurance policy.

Does car insurance go down if you have a garage?

However, some insurers may offer discounts for drivers who keep their car in a garage, which is presumably a safer place than parking it on the street or driveway. It's always worth asking. Companies that do offer a “garage discount” can save you about 5% on your premiums.

Can I put a detached garage on my property?

Every local government has a zoning and engineering department that sets rules for how and where you can build structures. Whether you are building the detached garage yourself or using a contractor, you must obtain a permit for the project to be finished and approved by the city.

Should I drywall my detached garage?

Attached garages need drywall applied to the walls between the house and the garage. This is part of the fire resistant construction code. Detached garages do not need drywall UNLESS there is habitable space in the garage.

Are attached garages warmer than outside?

Without air conditioning in your garage, its temperature can be as much as 10-18° F (5-10° C) warmer than the outside temperature.

Does attached garage add value?

Believe it or not, the lowly garage is one of the most valuable assets of a home. You wouldn't necessarily think so, but a garage can increase your home's value by tens of thousands of dollars. According to HomeAdvisor, a garage can add between $12,750 and $33,200 in value to your home.

How much does a detached garage cost?

Building a detached garage costs $26,400 on average, or between $19,200 and $33,600, depending on the size and material.

How much does not having a garage devalue your house?

Having a garage will nearly always help you sell more quickly and likely at a higher value than a home without one. The bottom line, buying a home with a garage won't hurt your investment plans (unless it's a mess and falling down!) and will likely help you sell with a higher future value.

What lowers appraisal value?

Local Market And Location

Consider factors such as the neighborhood's quality, the nearby schools and the area's crime rate. If any of these are unfavorable, your home's value may be lower than expected. The state of the local real estate market can also vary greatly.

What increases house value the most?

10 quick wins for adding value before selling
  1. Redecorate. ...
  2. Fix superficial defects. ...
  3. The front door. ...
  4. Declutter. ...
  5. Heating and lighting. ...
  6. Garden appeal. ...
  7. Create a driveway / off-road parking. ...
  8. Look smart and be energy efficient.

What not to say to an appraiser?

In his post, he lists 10 things as a Realtor (or even homeowner), you should avoid saying to the appraiser:
  • I'll be happy as long as it appraises for at least the sales price.
  • Do your best to get the value as high as possible.
  • The market has been “on fire”. ...
  • Is it going to come in at “value”?

Is it better to have an attached or detached garage?

If you don't want the livable space to have running water and essentially be used as a spare room, it's better for that space to be part of an attached garage with easy access to the rest of the house. A detached, livable garage should be equipped with everything someone needs without having to go to the main house.

What is the disadvantage of a detached garage?

Cost: Building a detached garage can be more expensive than an attached garage, as it requires its own foundation and utilities. Weather: In areas with extreme weather conditions, getting from a detached garage to your home may be less convenient, especially during rain or snow.

What is the most cost effective garage size?

A 20×20 garage is one of the most sought-after sizes for both attached and detached garages. Offering ample space for two vehicles at a budget-friendly price, this size stands out as one of the most cost-efficient AND practical options for everyday homeowners.

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