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maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/1/24 2:04 p.m.

This is going to start with a long story, because just getting to the point of having a permit in hand has been a very long story. It is now November and I started this process in May. TL;DR: I'm building a 22x26 detached garage in my backyard.

I've been dreaming of building my own detached garage workshop for many years now. My first house almost 10 years ago had a 30x40 pole barn, but I gave that up to return to my home state. Since then, it's been rental houses with typical suburban 2-car garages. Just enough to story my beloved El Camino and have not-quite enough space to build project cars. And if you've known me on this forum, I've built some real crazy project cars despite these inadequate, temporary workspaces.

Almost 2 years ago, my then-fiance and I bought a house, and I've been scheming how to add more garage space since. In fact, we bought this specific house with the idea in mind to add a detached garage. It's in a very specific part of town, close to both of our jobs but not too far from the city, non-HOA, and unincorporated. These criteria limited our options to older houses, but it's worked out great so far, and I have an amazing partner who is not only understanding, but borderline enabling, of my ridiculous hobby.

This summer I finally ordered a survey and bought some plans. The house already has an attached 2-car, and I yeah I managed to finish the GRM Free Europa and the Rice Rod in that space. But I could do much better work in a dedicated, detached shop with a lift. I plan to put a 22 ft wide x 26 ft deep shop in that patch of grass between driveway and shed. That leaves 10 ft for the side setback per county code, and enough space for a walkway between the buildings. It's under the 650 sqft limit of accessory buildings for my lot size, so no variance should be needed. It also leaves about 10-12 feet to the shed. Many friends have asked why even keep the shed? Well first of all it's already there, so why tear it down? It's enormous at about 30 x 15, and on a block foundation, and it will keep all the clutter out of both garages. Of course the shed is inside the side and rear setbacks, but it's already existing, so I shouldn't have a problem pulling a permit to build my garage right?

Wrong. The county zoning office took one glance at my original site plan and survey, and informed me that my side and rear setbacks are swapped. Since I have a corner lot, the "front" of the property is the shortest road frontage, no matter which way your house is actually facing. So even though the surveyor and I both thought I had a 10ft setback to work with on the side closest to the driveway, it's actually 35ft there. Which would be the entire proposed garage. So, I needed a variance, which I applied for in July. The next zoning variance hearing would be September. And since the shed is also inside the setbacks, they advised me to add it to the variance paperwork. Even though it's been there for who knows how many decades, and exists on my tax bill...but I guess those are the rules. So I apply for the variance. I also had to put up a stupid sign in my yard the month leading up to the zoning board hearing to publicly inform my neighbors of exactly when and where to come screw me over. Just kidding, all my neighbors are super cool, and I even got their signitures of approval on my variance paperwork. The permit office people even said I should get approved with no issues; they see this all the time.

Despite being told by the zoning and permit office folks that my variance would be the rubber-stamp "consent agenda" part of the meeting, they instead made me take the stand and ask a bunch of invasive questions about why I'm doing this. I survived the gauntlet, and my variance was approved, subject to a few conditions. The relevant one was that since the shed is within a drainage easement, I had to sign a "hold-harmless" agreement with the county in case they ever need to dig in that area and therefore demolish my shed. Okay, whatever, just let me build my shop. This agreement took almost a month to acquire. First, I had to track down a county water engineer that was even willing to listen to me. He was actually very helpful and nice, even found out that these isn't any actual infrastructure within that easement, and due to the topography and development of the area, probably never will be. He even thought it possible for the county to cede the easement back to me, but that process would take forever. So he wrote up an agreement, another notarized form, and I took it to the zoning office.

And finally, almost 4 months after starting this process, I have a permit to build my shop!!!

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/1/24 2:08 p.m.

I call this "mostly" DIY because I am hiring out what I'm not comfortable doing. Namely, the concrete, roof, and probably electrical. Concrete is scheduled to dig and form next week, and pour the foundation and widened driveway the following week.

While 22x26 is not a very wide 2-car garage, it's an enormous space for one car. Which has been my plan this whole time. I am centering a 2-post lift in the middle of the shop, so I can have adequate space on all 3 sides for work benches, tools, welders, shelves, you name it. This is dedicated work space, while the attached garage is for car storage, and the shed is for junk storage.

So buckle up, let's build a garage!

wheelsmithy (Joe-with-an-L)
wheelsmithy (Joe-with-an-L) GRM+ Memberand PowerDork
11/1/24 2:22 p.m.

WOOT! WOOT!

CrustyRedXpress
CrustyRedXpress GRM+ Memberand Dork
11/1/24 2:50 p.m.

You're gonna love it =)

If you really want to stretch a penny I bet you could find a sparky that would help you design the electrical system but let you do the work of buying the stuff, running the wire, etc. OTOH, sometimes signing a check feels pretty good. 

 

golfduke
golfduke Dork
11/1/24 2:59 p.m.
CrustyRedXpress said:

You're gonna love it =)

If you really want to stretch a penny I bet you could find a sparky that would help you design the electrical system but let you do the work of buying the stuff, running the wire, etc. OTOH, sometimes signing a check feels pretty good. 

 

This is what we did for our solar and 220v garage additions-  Electrician laid wires, and I did all of the grunt work.  It ended up saving me close to $3500 from the original estimate, and all told, it took a weekend off and on of work. 

 

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/1/24 3:06 p.m.

I have wired a detached shop before, but if the price is right, I might just pay the man. When we moved in, I had subpanel installed in the attached garage for welder and air compressor outlets (or future EV charging I suppose). That electrician said he could feed a detached garage subpanel off that new sub, and I would just need a short 4ft or so trench between the two garages. This county will allow me to do my own electrical work since I am an owner/occupier and they have a special permit for that.

https://grassrootsmotorsports.com/forum/build-projects-and-project-cars/bought-a-garage-it-came-with-an-old-house/108396/page3/

This is basically what I did with my old house's 30x40 pole barn, including digging a 100ft long trench by hand because I kept hitting unmarked stuff.

 

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/1/24 4:09 p.m.

I'm also shopping 2-post lifts. Right now I'm drawn to wider, asymmetric lifts, since I am not width limited. Is Bendpak still a good brand? Atlas and Titan seem too cheap.

Norma66-Brent
Norma66-Brent HalfDork
11/1/24 8:30 p.m.

In reply to maschinenbau :

Bendpak is a ok lift. When i was pricing them out i was about to find a Rotary for the same price and the fit finish and everything was much better. Glad to see you getting your own space!

Lof8 - Andy
Lof8 - Andy GRM+ Memberand UltraDork
11/1/24 9:46 p.m.

I love garage builds.  And I hate the permitting hassle.  

preach
preach GRM+ Memberand UberDork
11/2/24 8:02 a.m.
Lof8 - Andy said:

I love garage builds.  

Me too, a lot. Congrats OP!

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/7/24 10:56 a.m.

Broke ground today!

Still haven't decided on a lift, but leaning towards the latest Bendpak 10AP or the outgoing XPR-10S. The 10AP has some really cool triple-telescoping arms with a novel restraint mechanism.

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/7/24 4:24 p.m.

Day 1 progress. Their skid-steer was in the shop so they had to rent this little baby machine.

The sides closest to my shed and the neighbors will be poured walls on footers up past grade, while the front and right side will be turn-down footers, which is perfect because those two walls will have doors. J-bolts going in the concrete when it's time. I'm learning a lot, rapidly.

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/15/24 12:24 p.m.

4 or 5 dump trucks of dirt later, we have a footing dug. Passed inspection Tuesday, rained overnight, they dug it back out yesterday and poured the footing today.

Check out the little bridge they built out of my demo'd shed stairs. Some of the dirt went to fill the ground in front of the shed so I can have a small ramp instead of 3 stairs. Perfect for lawnmower and bikes.

Stem walls next. The left, rear, and part of the right sides will have stem walls due to the grade. Then pad and driveway after that.

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/15/24 2:19 p.m.

So I thought something looked funny. The footing trench, which was like 30" deep, was filled all the way when according to the boss man it was only supposed to be filled like 12". This means the garage pad is no longer floating between the stem walls with the front/right side turn downs. The slab will be about 6", but that's probably not enough to install anchor bolts for the sill plates. So after the pad, they are going to drill thru slab and into footing and install extra-long threaded rod epoxied anchors. Normal L-bolt anchors will go in the stem walls as planned. They also plan to go as overkill as possible on the gravel/compaction under the slab, since the slab will no longer be floating and subject to ground settling in the future. So, kind of a bummer but also this foundation is going to be hecking thick at 6" and fiber reinforced, plusthat's a solid 30" deep, 24" wide, reinforced perimeter. I could go multistory on this bad boy.

Keep in mind I know nothing about concrete or civil engineering, so if you have insight I'm open to input while the pour is still wet.

OHSCrifle
OHSCrifle GRM+ Memberand PowerDork
11/16/24 2:45 p.m.

That's gonna make a lot of heat!

Is that 30" deep footing only reinforced only at the bottom?

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/16/24 3:11 p.m.

In reply to OHSCrifle :

Yes only the two tracks at the bottom unfortunately.

OHSCrifle
OHSCrifle GRM+ Memberand PowerDork
11/16/24 3:15 p.m.

I'm not sure how much harm that could do, if any for a garage. Hopefully one of the GRM concrete experts can advise better. 

If you ever need an extra set of hands, message me. I'm in Roswell and weekends are sometimes pretty free. Not always but sometimes. 

AngryCorvair (Forum Supporter)
AngryCorvair (Forum Supporter) GRM+ Memberand MegaDork
11/16/24 3:33 p.m.

In reply to maschinenbau :

Do you have the option to say "hey berkeleyers, do it right or I'm not writing the check!"

AngryCorvair (Forum Supporter)
AngryCorvair (Forum Supporter) GRM+ Memberand MegaDork
11/16/24 3:33 p.m.

In reply to maschinenbau :

Do you have the option to say "hey berkeleyers, do it right or I'm not writing the check!"

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/16/24 4:39 p.m.

In reply to AngryCorvair (Forum Supporter) :

Yes I could make them tear it out and repour, but if it's not a major issue for a garage then I'm okay with it.

Antihero
Antihero GRM+ Memberand PowerDork
11/16/24 6:22 p.m.

That is a ridiculous amount of concrete, like many thousands of dollars of extra cost for no reason. Holy crap

 

For starters, yes that's a lot of concrete but its gonna be weaker than a stem wall because there isnt any reinforcement in the extra 2 feet or so of "wall" that they poured. For example depending on what you are putting on it and local codes, you are looking at uprights every 2 feet and at least 2 rows of steel horizontally. You basically have a decent footing steel schedule and a foundation with zero reinforcement. Id be very unhappy with it.

 

The slab will need steel too, especially with a lift. Do not let them just use fiber mesh in it. Fiber makes concrete stronger but it doesnt reinforce it.

 

There's other issues but there's 2 big ones to start with.

 

TL;DR .......id make them start over 

Antihero
Antihero GRM+ Memberand PowerDork
11/16/24 6:31 p.m.

I see steel in the back at least but we're they planning on monopouring the front? You'd still have steel in the monopour section.

 

It's an odd way of doing this, they should have just done a low wall in front with higher in the back. Bank pouring ( when you just fill the trench) is cheesy IMO but a viable technique.

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/16/24 7:01 p.m.

In reply to Antihero :

Correct, they were going to do a turndown front and right side, presumably with more rebar. I'm not sure how bad this is. Kinda frustrating.

Antihero
Antihero GRM+ Memberand PowerDork
11/16/24 7:15 p.m.
maschinenbau said:

In reply to Antihero :

Correct, they were going to do a turndown front and right side, presumably with more rebar. I'm not sure how bad this is. Kinda frustrating.

In my opinion?

 

Bad. Chunks of concrete have strength but it's much less than you think. Plus still no wall rebar and you've opened up a world of water intrusion and I guarantee the slab cracks if it's connected to a heavy sinking object. Huge gaping cracks without heavy steel in the slab.

 

It's just .....all wrong and you shouldn't pay to be the guinea pig on How The berkeley Does This Idea Work??? When it's a butt simple job with very time tested methods to do it.

 

I mean are you getting a huge ass discount?

 

It's like .....doing an engine swap in a car but instead of using an engine swapped in it before you chain together 7 lawn mowers that are fueled on mayonnaise and boosted on oxygen tanks. And they run backwards and upside down. Could it work? Sure, but why???

maschinenbau
maschinenbau GRM+ Memberand PowerDork
11/17/24 8:33 a.m.

Isn't this basically a normal basement foundation footing but with a mega huge block underneath it all?

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