Final week, I submitted all the info to get my constructing allow for my workshop that can be constructed behind our carport. The constructing was going to be 18′ x 32′, sitting 14 toes behind the carport. I needed to submit an in depth description of the constructing, plus a number of drawings. I submitted a lot bigger variations of those drawings that I’ve already proven y’all.
I additionally submitted this flooring plan of the constructing…

I additionally needed to submit a drawing exhibiting our property with current buildings and the place the brand new constructing was going to be situated. So I submitted this…

I assumed I had coated all the pieces, however once I checked the standing of my allow yesterday, it stated it was on maintain as a result of I hadn’t submitted a basis plan. There was additionally this word: “New basis over 500 sf shall require engineer sealed design.” And my workshop was deliberate for 576 sq. toes. Ugh.
So there’s excellent news, and there’s dangerous information. The dangerous information is that there’s no approach I’m spending cash for an engineered basis for a workshop that’s being constructed by a neighborhood shed firm. So I’m having to cut back the scale of my workshop to get it as near 500 sq. toes with out going over. My workshop will now be 18′ x 27′. I’ll lose 5 toes of width on the constructing, which is an actual bummer, however I’m okay with it. The workshop will nonetheless be about 86 sq. toes larger than each my studio and the carport, so it’s a really good dimension. I’m okay with it, particularly if I can keep away from the expense and problem of getting to have an engineered basis.
The excellent news is that this. The one factor that was holding me again from feeling assured that I might really act as my very own contractor on the kitchen addition was the inspiration. I stored listening to this time period “engineered basis” and I had no thought what it was. I frolicked for a number of days attempting to google and analysis and discover info and solutions, however I wasn’t discovering something useful. I attempted looking out on my metropolis’s allowing and inspection web site, and couldn’t discover any info. I couldn’t discover any solutions to my questions. What’s an engineered basis? Do I would like an engineered basis? If I would like one, the place do I am going for that? I had so many questions, however might discover no solutions.
After which yesterday, on a totally totally different and unrelated challenge, the knowledge I’ve been trying to find simply occurs to land in my electronic mail inbox coming immediately from a constructing plans examiner for my metropolis! Ha! Excellent! So right here’s what I discovered…
What’s an engineered basis?
Merely said, an engineered basis is a basis that’s designed by an engineer. They take note of many elements, such basis of the prevailing constructing (if there may be one), the situation of the inspiration of the prevailing constructing, the kind of soil that the constructing/addition can be constructed on, and so forth.
This in all probability isn’t the case in each jurisdiction, but it surely’s my understanding that in my metropolis, town doesn’t have to examine engineered foundations as a result of the engineer is the one who indicators off on the engineered basis, and that’s filed with town. However once more, each county/metropolis might have totally different necessities.
When is an engineered basis wanted?
With a view to know whether or not or not you want an engineered basis, you’ll have to test with your personal native allowing and constructing inspection workplace. However to present you a basic thought of when one is perhaps required or not, I’ll share the necessities particular to Waco, Texas.
Present pier and beam home:
If you happen to’re constructing an addition onto a pier and beam home, and the addition may even be pier and beam, the addition basis doesn’t must be engineered so long as the prevailing basis has not failed.
Present slab basis:
This is identical as the prevailing pier and beam necessities. So long as the addition may have a slab basis, and the prevailing slab has not failed, the addition is not going to require an engineered basis.
Circumstances:
An engineered basis is required if the addition may have a special kind of basis from the prevailing construction. If a home has a pier and beam basis, however the addition may have a slab basis, an engineered basis is required. Or if a home has a slab basis, however the addition may have a pier and beam basis, an engineered basis is required. An engineered basis can be required on an addition if the prevailing basis has failed.
New foundations for retailers, storage buildings, and residential additions 500 sq. toes or bigger must be engineered.
So these are the rules particular to Waco, Texas, as of the summer season of 2024. And in the event you’re not in Waco, these tips can provide you a basic thought or a leaping off level as as to if or not you could want an engineered basis on your addition or your accent constructing. However after all, you’ll wish to get the precise with your personal allow and inspection workplace.
Now that I’ve this info, I actually do really feel like I might be my very own contractor. I really feel extra empowered with this info, and I really feel higher geared up to decide. I’m nonetheless undecided if I’ll go together with an engineered basis or not for my kitchen addition, however not less than now, I do know what town requires. And if I select a pier and beam basis for the kitchen addition, it doesn’t require an engineered basis since (1) the prevailing home has a pier and beam basis, (2) the prevailing basis is in nice situation and doesn’t have any factors of failure, and (3) the kitchen addition is underneath 500 sq. toes.

Addicted 2 Adorning is the place I share my DIY and adorning journey as I rework and beautify the 1948 fixer higher that my husband, Matt, and I purchased in 2013. Matt has M.S. and is unable to do bodily work, so I do nearly all of the work on the home on my own. You possibly can be taught extra about me right here.