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What Does a Second Story Addition Over The Storage Price?


My spouse and I’ve two children—and primarily no privateness. Even our bed room is surrounded by the youngsters’ rooms, which just about kills any hope I’ve at evening of… you already know what I imply. 

We longed for an area of our personal—possibly even an whole wing if our genie-in-a-bottle want was granted.

That’s when it hit us. Now we have a second story over our residing space—nevertheless it doesn’t prolong over the storage. 

  • May we construct an over-the-garage addition and switch that right into a master bedroom? 
  • Would that be structurally potential? 
  • What wouldn’t it price?

After an extended course of, we’ve bought all of the above questions answered—and I’m excited to share our findings with you.

Extra articles on actual property:

What Does a Second Story Addition Over the Storage Price?

A second-story addition above a storage will price about $200,000, relying on whether or not you need a full or extra fundamental, partial second-floor addition. Our estimate relies on a 450-square-foot construct at an common price of roughly $450 per sq. foot and features a bed room, toilet, and closet. (It should price extra in the event you dwell in a high-cost space or need a bigger area.)

Right here’s a common breakdown of the price:

  • Permits/insurance coverage/dumpsters/porta-potty: $7,000
  • Framing Construction: $60,000
  • Roof/siding: $42,000
  • Mechanical: $18,000
  • Insulation/drywall/paint/trim/cupboards/flooring: $41,000
  • Finishes: $6,000
  • Builder revenue/overhead: $32,000

This $200,000 estimate was nonetheless legitimate in late-2022 after we checked in with our builder once more.

(If you wish to see the detailed quote, I’ve bought it listed on Etsy as a undertaking construct tracker template. It’s solely $4—low cost sufficient to fulfill curiosity and helpful for estimating the value of your construct too.)

Trying to undertaking handle your construct to save lots of on prices? Use our free house renovation funds template.

What Does It Price to Add a Room Above the Storage?

What if you wish to construct a room over the storage and never a master bedroom? That may be cheaper, proper? Considerably, however not worldly completely different.

You’ll nonetheless have to:

  • Demo the prevailing roofline.
  • Construct the shell and insulate.
  • Add plywood, siding, and shingles.
  • Run HVAC and electrical.
  • Drywall, paint, and add all of the finishes.

So as to add a bonus room above a storage, the common price will probably be round $160,000. (This assumes a 400-square-foot addition at $400 per sq. foot.) This contains the prices of insulating, electrial work, portray, and constructing prices. It’s much less than the $200,000 main bedroom suite price ticket, however not as low as one would initially suppose. 

Price of Constructing an House Over the Storage

Whereas including a room is cheaper than a master bedroom addition, the price of constructing an condominium, visitor home, or in-law suite above the storage could be dearer for the next causes:

  • You’ll want outdoors entry to the condominium, which would require an outer stairwell.
  • The condominium will want a kitchen, which suggests further cabinets, home equipment, and possibly even a gasoline line.
  • In case you embody on-suite laundry, you’ll want particular electrical retailers and a washer and dryer.

Given the extra objects above, I can see the value inflating to $230,000.

Have cash stashed away? Why not make investments it in a CD at 5% curiosity? Listed below are the highest rates of interest accessible at present:


Addition Above Storage Earlier than and After

Under is an image of our second-story home with no residing area above the storage. Beneath that’s a picture of the plans so as to add the second-story master bedroom.

We haven’t pulled the set off on the addition but, however as you may see, the builders intend so as to add a entrance peak to the storage (for a greater, extra up to date look) after which offset the brand new construct again from the prevailing second story to provide the home some added dimension—nice for the aesthetic.


Right here’s the view from the facet— 

No matter you do, don’t do the under—which is solely plunking a field on prime of your storage. Certain, it may be low cost and supply the area you want, however in the event you ever plan on promoting, you’ll have a tough time discovering a purchaser due to your eye-sore of an add-on.

Including a Grasp Suite Above the Storage: Flooring Plans and Prices

This was our intent with the construct—a main bedroom over storage addition, full with a toilet and walk-in closet.

We went by means of the method I simply outlined above—

  • We interviewed builders and located two that might deal with our job.
  • Primarily based on the quotes and the interviews, we chosen our builder.
  • After he understood what we wished, he had a few flooring plans drawn up for us.

Master suite above storage flooring plans

400 sq ft master bedroom addition

This was the smaller, extra inexpensive possibility of the 2—almost 400 sq. ft.

450 sq ft master bedroom

Then there was the marginally extra luxurious and seemingly a lot bigger area—almost 450 sq. ft.


Can You Do an Over The Storage Addition?

As soon as we bought the thought of including a second flooring to the storage, we wasted no time in contacting a builder. It seems it’s completely potential to construct an addition over the storage. You simply want to verify the storage construction is robust sufficient to assist the second story.

To ensure the construction was sound, the crew—

  • Checked our basement block partitions to see if there was any seen cracking.
  • Dug into the bottom on the outer facet of the storage to verify the depth and integrity of the footings.
  • Seen the studs and rafters within the storage to verify if the construction was sound.

(Builders can sometimes repair the structural points—however for a further price.)

What About Including a Second Story to a Indifferent Storage?

Your setup might differ from ours. Maybe you’ve gotten a indifferent storage and need to construct a room or condominium above it. That is potential as nicely.

In truth, it’s simpler (which additionally means cheaper) than including a room over an hooked up storage because you don’t have to tie into any of the prevailing second-story building, HVAC, plumbing, or electrical energy.

If you wish to add a room above a indifferent storage, you simply want to fret about the muse’s integrity. That’s it.

Advantages of Including a Second Story to Your Storage

You need more room in your own home, however must you construct out, up, or assemble a separate constructing within the yard?

Under are the primary advantages of constructing on prime of the storage—

You want an at-home workplace

I work at home. My “workplace” remains to be in our upstairs bed room. It really works, nevertheless it’s not superb. We thought-about ending a portion of the basement for an workplace, however being below the primary degree means noise—foot thumping and the occasional shrills from the kids. Being upstairs is right for an workplace area. We would unlock a bed room that might simply grow to be a devoted workplace by constructing above the storage.

Keep away from utilizing up yard area

Only a few individuals dwell in a rural setting lately—which suggests restricted side-to-side area for increasing your house. Chances are high, you may’t construct out—so the following superb possibility is to construct up.

Soundproofed area

Constructing above the storage is interesting as a result of it’s often the quietest area in your complete home. There’s no noise touring up into your new construct space—simply the occasional storage door hum. And, if any noise (ahem…) comes from the room above the storage, the chances of your kids being scarred for all times are significantly decreased.

Elevated visible enchantment

If performed proper, including a residing area above the storage can enhance the look of your own home. You’re giving your self room to roam, and your own home appears higher. That’s a win for you now and sooner or later, must you ever determine to promote.

Elevated worth of your house

You most likely noticed this coming. If your own home appears higher and has more room, will probably be value extra. It’s not the finest factor you are able to do so as to add worth to your house, nevertheless it actually does nonetheless assist.

May save on prices

You’re working overtop an unfinished area once you construct above the storage. The builders gained’t have to be as cautious about what they’re doing, and ending the storage area will price lower than reconstructing the kitchen after ripping off the ceiling to construct above it. In case you’re going to construct up, plan to construct over the storage if potential.

May produce a further earnings

Leases are powerful to come back by—so prices are up. Possibly you’re contemplating constructing an condominium above the storage for added earnings. It’s actually not a nasty concept. In case you might construct an above-garage condominium for $100,000 and earn your self $20,000 a 12 months in hire, the undertaking would pay for itself in simply 5 years (plus, you’ve nonetheless bought the added worth of that area that you simply’d earn once you promote the home).

What Are The Challenges of Constructing a Room Over a Storage?

It may possibly sound like a dream, however including a room above the storage isn’t all sunshine and rainbows. Some challenges can current themselves alongside the way in which—

Basis Points

We already mentioned the significance of the muse above the storage construct. In case your basis has points, however you continue to need to transfer ahead with the addition, it would price you extra. And because the basis isn’t straightforward to get to, it might price tens of hundreds of {dollars} to treatment.

Heating, Cooling, Electrical, and Plumbing

That is one I didn’t totally take into account. Certain, you’re going to want to have warmth, air-con, plumbing, and electrical into the brand new addition, and that’s going to price cash, however there are two different elements I didn’t take into consideration—

1) The way to route the whole lot to the brand new room above the storage

You might need an ordinary furnace with ductwork. 

  • The place are you going to route the brand new ductwork on your addition? 
  • Can you utilize the prevailing chase? 
  • Or will you should create a brand new one? 

The identical query is related for plumbing. You probably have a toilet in your new area, you’ll have to route some new piping by means of your house. In case you’re creating new chases, meaning extra building, extra drywall, and extra end work. That every one takes time and prices further {dollars}.

2) Can the present techniques assist the elevated load?

How previous is your current breaker field? Will you’ve gotten sufficient further amperage in that field to energy a complete master bedroom or condominium? 

  • What about your furnace or boiler? 
  • Your A/C unit? 
  • What about your water heater? 

Updating simply one of those techniques could possibly be a five-figure price.

Working round earlier remodels

Have you ever performed remodels earlier than? In the event that they’re close to the storage, your addition may grow to be a bit more difficult. Additionally, in the event you’re working any venting, electrical, or plumbing over your storage, these possible have to be moved earlier than building begins.

Architectural options/types

Every home is distinctive—they’ve their very own fashion and options. And in the event you do an addition, you need that addition to match and seem pure to the home. The very last thing you need is to place a ton of cash, time, and vitality into an addition solely to have somebody level at it from the curb and say, “Yikes, that’s an apparent add-on!” The better the fashion of your own home, the more difficult it may be to match.

Will the addition match naturally together with your current construction?

Including a construction above the storage could seem straightforward, however how do you intend to entry it from inside the home? Will you add new stairs—or can you utilize the previous ones?

This was a troublesome one for us. Our stairs lined the wall adjoining the storage and made a flip on the prime earlier than attending to the second-floor degree. If we made a master bedroom in the other way, the hallway from the prevailing bedrooms would step down—after which again up into the grasp. 

There wasn’t a straightforward answer to appropriate this. You might need an identical structural concern that makes the home quirky or prices you a bunch extra money to make it extra seamless.

Further prices to maintain the above storage addition protected from fireplace

The constructing code is fairly relaxed when there’s nothing above the storage. Nonetheless, in the event you add residing area over the storage, you’ll want at the very least ⅝” Kind X gypsum board on the ceiling and ½” drywall on the partitions. Our storage partitions and ceiling have been principally paper-thin paneling—which clearly wasn’t compliant with the minimal drywall code.

Trying to do different renovations? Take a look at these initiatives, plans, and prices:

What’s the Course of for an Addition Above the Storage?

In case you’re simply dipping your toes into this above storage constructing undertaking, you’re most likely questioning what all of it entails—the place do you begin, and the way do you get your building undertaking underway?

Interview builders

First, you’ve bought to discover a builder that can deal with your second-story storage addition (which isn’t as straightforward as you may suppose). The simple cash for a builder is in developing full homes—not engaged on rework initiatives right here and there. And one of the crucial advanced remodels is including a second story over the storage—so be able to hit some roadblocks right here. We needed to undergo almost ten builders to get one or two that might take into account taking up our undertaking.

Once you discover a couple of builders that can take into account your undertaking, take the time to interview them and see if they’re the very best particular person for the job. (The very last thing you need is for a contractor to tear a gap in your roof solely to search out out they’re incompetent in all of the remaining steps of the construct.)

Get high-level quotes

To get a ballpark quote, let your potential builders know what number of sq. ft you’d like so as to add. They could not prefer it—however in the event you press them, they need to be capable to offer you a tough price of your addition based mostly solely on a per-square-foot price.

Get plans drawn up—determine on one

The subsequent step is to hold your imprecise imaginative and prescient into precise design plans. Between your contractor and their architect, they’ll put your imaginative and prescient into a couple of completely different CAD drawings so you may see varied flooring plans and sizes (at various prices). Both you’ll fall in love with considered one of them and choose it, or use the drafts to create new plans.

Get an in depth quote out of your builder—then add or subtract objects

With the blueprints of your new second-story storage addition, your builder will put collectively an in depth quote on your whole construct. It will embody objects from the porta-potty in your yard to the $20,000 siding prices of re-wrapping your whole higher degree (I should still be bitter about this one).

Do the pre-work

It’s time to tear off the storage roof and construct, proper? Fallacious. Now could be the time to get all of the pre-work performed.

 This was our to-do listing:

  • Tear down and cap the unused chimney (it was that or construct it up above the brand new addition, which might have price greater than $15,000).
  • Get the skin electrical line buried and off the roof.
  • Have electricians replace our breaker field—from 100 amps to 200 amps.
  • Change our boiler system (it was 50 years previous and wouldn’t deal with a brand new zone).
  • Tear off the storage paneling to show the studs and ceiling joists.

Your listing will differ—however relaxation assured, you’ll have a listing.

Schedule the construct

Time to schedule the beginning date. That is tremendous thrilling, however put together your self for building life.

Dwell in chaos for months

I can image it now—

  • A gaping gap in your storage ceiling.
  • Rainwater one way or the other leaking into your own home.
  • And the sound of nail weapons 24/7 for months to come back.

Dwelling in a building zone isn’t for the faint of coronary heart. Stress ranges will probably be up (together with petty arguments), and tears will probably be shed. Simply count on it. Oh, and that projected finish date that your contractor gave you? Plan on it taking a month longer than that. (It at all times does.)

And, maybe plan a getaway journey every week or two earlier than the undertaking even begins. You’re going to want it.

The way to Finance an Above Storage Addition

You’re set on it. You need to put a 2nd-floor addition over your storage. Now what?

Since most individuals don’t have $200,000 chilling within the financial institution, you’ll most likely have to finance a portion of the construct. What are your choices?

Money-out refinance mortgage

In case you’ve lived in your own home a couple of years, you possible have some fairness in it—resulting from its elevated worth and since you’ve paid down the precept. With a cash-out refinance mortgage, you’re primarily taking out a brand new mortgage that’s bigger than your present one and pocketing the distinction.


2% to five% closing prices, and a brand new mortgage payoff price (which is probably going increased than your present price).

Renovation mortgage

A renovation mortgage can imply many issues, however in the event you’re wanting so as to add a main bedroom above the storage, likelihood is you’ve been residing in your house for some time. If that’s the case, a renovation mortgage will probably be very like a private mortgage. To get a private mortgage, a lender gained’t ask you about your home—they’ll as a substitute take into account your credentials, like your credit score rating, earnings, and another debt you could have.


Charges are sometimes between 8% and 24%, relying in your credit score.

Residence fairness mortgage

Generally known as a second mortgage, the house fairness mortgage permits you to take out a second mortgage on your own home. It is a separate mortgage out of your first one—and comes with its personal month-to-month cost.

To safe a house fairness mortgage, you’ll want:

  • Sufficient fairness in your house to assist the mortgage.
  • A low debt-to-income ratio (common rule of thumb is that your debt is lower than 43% of your complete month-to-month earnings).
  • A great credit score historical past (~700 or above)


Closing prices—2% to five% of the mortgage quantity, plus the second mortgage mortgage price.

Residence fairness line of credit score

A house fairness line of credit score (HELOC) works in a different way than a house fairness mortgage. As a substitute of the financial institution loaning you a lump sum amount of cash, the HELOC is an open line of credit score—and it’s your selection of when and the way a lot to borrow towards it.

Let’s say your house is value $300,000. You owe $150,000 on it—so your fairness is $150,000. Maybe you’re contemplating a rework or the brand new construct above your storage, however you’re simply unsure.

To arrange for a building undertaking, you head to the financial institution and join a $100,000 HELOC. You’ll possible pay 2% to five% in closing prices to arrange the HELOC ($2,000 to $5,000 utilizing our instance), and then you definately’ll owe curiosity on any mortgage you withdraw out of your HELOC.


Closing prices—2% to five% of the HELOC, then the mortgage price of the quantity you borrow.

(Take a look at our free mortgage payoff calculator and different private finance merchandise for extra.)

What’s the finest choice to finance a second-story addition?

I’m a giant fan of simplicity. It’s higher for my mind and stress degree—and it often prices me much less cash down the street (since there are fewer balls to maintain within the air).

If it have been me, I’d select one of many choices under:

  1. Save up money for your complete construct (I do know, I do know—nevertheless it typically is the most suitable choice).
  2. Save up sufficient cash to construct the shell of the construction—then, maintain saving till you’ve gotten sufficient to buy the following part of the undertaking. (Comply with this course of till it’s full.)
  3. Save up a good amount of money (50% or extra), after which fund the remainder of it with a private mortgage—one that you simply’re positive you may repay in only a 12 months or two.

Alternate options to an Over the Storage Addition

What in the event you determine that an addition above the storage simply gained’t work? What might you do as a substitute?

Yard house

Technically referred to as accent dwelling items (ADUs), the yard house may be an important various to constructing over the storage. Primarily, it’s a step above a tiny home—full with a sleeping space, kitchen, and loo.

Since including room above the storage can run $200,000+, this may be an important possibility so as to add more room that prices the identical quantity or much less. In case you’re in search of secluded workplace area, it’s a particular risk.

Storage revamp

How a lot do you utilize your precise storage? Do you park your vehicles in it, or has it grow to be a giant storage unit on your junk? What in the event you reworked it right into a livable area? It will be far less complicated than including above it—and means cheaper in addition.

Basement condominium

Is your basement unfinished? What in the event you added partitions and carpet down there as a substitute? Once more, this will probably be simpler and cheaper than tearing your roof off and residing in a building zone for a complete summer season.

Attic condominium

You probably have unused attic area, maybe you would flip it right into a completed room.

Home bump-out

If the numbers aren’t working together with your above storage addition, get the main-level bump-out quoted. Generally it’s simpler to put flat concrete than tackle previous footings beneath the storage.


To sum all of it up—

It is potential to place an addition over the storage so long as the footings and storage framing are nonetheless structurally sound.

  • Advantages embody:
    • You don’t want to make use of up valuable yard area.
    • It’s an important soundproof space above the storage.
    • Can add to your house’s aesthetic.
    • Provides worth to your house.
    • More cost effective than constructing over a completed area.
    • It could possibly be a money-maker in the event you hire the area out.
  • Challenges embody:
    • Potential basis points.
    • Working round earlier remodels.
    • Determining the right way to route HVAC, electrical, and plumbing.
    • Architectural look—inside and outside.
    • Further prices to make the area fire-resistant from the storage.
  • The method is sort of a home construct because it’s a serious renovation.
  • The above storage addition price is roughly $200,000, give or take—relying on what you need to put within the area.
  • There are a number of methods to finance the undertaking—together with a renovation mortgage, a private mortgage, a house fairness mortgage, or a HELOC.
  • If it simply isn’t understanding, there are various choices—like a yard home, a storage renovation, an attic rework, a basement rework, or constructing out as a substitute of up.


What does an ADU above the storage price?

An extra dwelling unit (ADU) above the storage is principally an above-garage condominium. On common, the price is between $200,000 and $250,000.

Estimate price to complete room over storage

If you have already got a construction above your storage that you just want to complete, the price is considerably lower than constructing a brand new area. The worth tag is much like ending a basement—roughly $20,000.

What’s the price of a ranch home addition over the storage?

The price of an addition over a ranch home storage is round $200,000. This assumes an area of 450 sq. ft at $450 a sq. foot.


See all

Henderson, M. (2018, August 9). Execs and Cons of Renting a Storage House. The Hire. Weblog : A Renter’s Information for Ideas & Recommendation. 

Residence Fairness Mortgage vs. Residence Fairness Line of Credit score (HELOC) | Equifax. (n.d.). Retrieved March 20, 2023, from 

How A lot Does It Price to End a Basement? (2015, April 30). Angi. 

The way to Select a Residence Builder. (n.d.). Retrieved March 20, 2023, from 

inspectiongeek. (2021, March 12). Ought to I Drywall My Storage. Residence Inspection Geeks. 

What It’s Actually Prefer to Dwell By a Transform. (n.d.). Houzz. Retrieved March 20, 2023, from




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