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Started By
Message
Building up to base flood elevation?
Posted on 4/24/20 at 12:01 pm
Posted on 4/24/20 at 12:01 pm
I’m currently looking at lots now and plan on building in 3-5 years. I have a lot that’s perfect location, size, price, etc.. but the elevation looks a little low.
Base flood elevation for the area is 8ft. New construction has to be built 2ft above that, so 10ft. Ascension parish only allows a max dirt pad of 3ft.
If the lot elevation comes back around 4-6 ft, what are my options?
I really don’t want to build on pilings or whatever.
Base flood elevation for the area is 8ft. New construction has to be built 2ft above that, so 10ft. Ascension parish only allows a max dirt pad of 3ft.
If the lot elevation comes back around 4-6 ft, what are my options?
I really don’t want to build on pilings or whatever.
Posted on 4/24/20 at 1:34 pm to MaxDraft
I know one house in the area is around 5 1/2 ft on the elevation certificate.
If I’m similar to that, 3ft would get me to 8 1/2 ft. So I would need a 18 in slab.
I don’t have a lot of experience with this stuff, any restrictions on slab thickness? What’s normal? I know concrete is crazy expensive nowadays.
If I’m similar to that, 3ft would get me to 8 1/2 ft. So I would need a 18 in slab.

I don’t have a lot of experience with this stuff, any restrictions on slab thickness? What’s normal? I know concrete is crazy expensive nowadays.
Posted on 4/24/20 at 1:43 pm to CLane33
I thought the ascension restriction was for neighborhood developments and not an individual home, I could have miss understood, check into it
Posted on 4/24/20 at 2:05 pm to CLane33
quote:
I have a lot that’s perfect location, size, price, etc.. but the elevation looks a little low.
get the topo survey done before you even think about making an offer.
your house could be 20’ in the air but if the lot and the lots around you all go under, do you really want to be living there?
Top of dirt elevation of the pad at 3’ above elevation is still going to be expensive and will look goofy (in my opinion). You aren’t reinventing the wheel here but if you buy a lot that floods, it’s going to flood again
Posted on 4/24/20 at 4:10 pm to wickowick
quote:
I thought the ascension restriction was for neighborhood developments and not an individual home, I could have miss understood, check into it
It's for all new construction - subdivision or not. It's 100% bullshite, too. But hey, the parish did something to combat the terrible flooding that occurs every time it rains!

The voters in this parish are just dumb enough to believe that a limit on the home pad will prevent future flooding INSTEAD of actually cleaning out every ditch and river/bayou in the parish to HELP storm water find its natural drainage ways. People here jerk off to the 2016 flood and love to say "never again". What the frick do they think they're going to do, control mother nature? We get 30" of rain in 3 days and the parish is going under water again. No limit on home dirt pads is going to change that.
But by all means, bring government and more regulation into the mix. That'll fix things!
And to the OP -- a home build up a little doesn't look as bad as you think. Raised new construction homes nowadays are beautiful and there are benefits of it too. If you have to raise it high enough, you could make the area beneath your home one hell of an entertainment space. Just make sure the insulation in the floor is done right by qualified individuals. You want it to last but don't want it so thick that it creates further issues down the road.
This post was edited on 4/24/20 at 4:14 pm
Posted on 4/24/20 at 4:28 pm to CLane33
Drop ledge for brick, if you are doing brick house. That is what my subdivision does to keep the house from appearing on a hill.
Posted on 4/24/20 at 4:38 pm to CLane33
quote:There is a reason for this.
perfect location, size, price, etc.
Posted on 4/24/20 at 6:34 pm to CLane33
Build the house 10 - 12 ft in the air, slab everything underneath, and have a giant entertaining area on the ground level. 

Posted on 4/24/20 at 8:58 pm to TDsngumbo
I think they have something in there about having to dig retention ponds too
Posted on 4/24/20 at 10:57 pm to Mr Fusion
quote:
perfect location, size, price, etc.
There is a reason for this.
Price is good in comparison to other properties in the area with similar elevations.
quote:
Drop ledge for brick, if you are doing brick house. That is what my subdivision does to keep the house from appearing on a hill.
I need to look into this! Looks like other houses must be doing this to solve the problem,
Posted on 4/24/20 at 11:01 pm to StealthCalais11
quote:
Build the house 10 - 12 ft in the air, slab everything underneath, and have a giant entertaining area on the ground level.
Like this baw??

Posted on 4/25/20 at 6:43 am to CLane33
1. You need to hire a surveyor to determine the ground elevation near the center of where the house will be constructed. Have him/her set a bench mark at the BFE plus freeboard required by the parish somewhere on the property. Add about 4"-6" to the numbers for removing vegetation. Now you have the correct height above ground you need to build up.
2. Armed with the information above, meet with the parish planning and zoning director to make sure what you have been told is correct. The director may offer suggestions or advice about construction. Ask if any variances are ever granted for the dirt height.
3. read up on slab on stem wall construction.
to start with look here. LINK /
2. Armed with the information above, meet with the parish planning and zoning director to make sure what you have been told is correct. The director may offer suggestions or advice about construction. Ask if any variances are ever granted for the dirt height.
3. read up on slab on stem wall construction.
to start with look here. LINK /
Posted on 4/25/20 at 10:54 am to StealthCalais11
quote:
Build the house 10 - 12 ft in the air, slab everything underneath, and have a giant entertaining area on the ground level.
This what we’re doing in St Tammany. Should almost be a requirement nowadays. Flooding sucks.
Posted on 4/25/20 at 9:25 pm to rodnreel
Thanks!
Is stem wall foundation the same as chain wall ?
Will most builders be able to do this type of construction?
Appreciate the help
Is stem wall foundation the same as chain wall ?
Will most builders be able to do this type of construction?
Appreciate the help
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