Call your local Code Compliance office. Mine did not require a permit if it was under 150sqft. The only requirement was I maintained the minimum set backs from the property line.

I think the biggest obstacle would be a homeowners association Archetectural Review Board if it was required. Fortunately, I didn't have to deal with that.

Here is a link that might be useful: Building Our 10x12 HFGH Greenhouse

>My concern, even with pressure treated wood; the base will rot over time
>Also ... how has it stood the test of time?

dh I don't think the HFGH has been in existence long enough to answer this question. I used Yellow wood for my base though and expect it to last much longer than in a fully exposed-to-the-elements environment. Certainly long enough for us!

Here is a link that might be useful: Our 10X12 HFGH

Hi dhmeiser. I looked at your album of the 12X10' HFGh. Very nice! What did you make those shelves out of? What is the top made from? It looked like some kind of expanded metal.

Thanks for the responses all,

Found out from my townships code department, yes I need a permit. I need to have a pier foundation for the greenhouse and shed attachment, witch means I need to sink a pier below frost line at every corner and every length over 10 feet. So I need a minimum of 8 piers (4 for the greenhouse and 4 for the shed Ugh! Minimum permit price is $500.00 but I get 450 back a after they state the project is finished.
I have to get the piers inspected for proper depth and spacing as well as proper securing of the foundation of the structure to the posts.

OMG I didn't realize that this would involve so much, its not like we live in a earthquake or hurricane location (northeast Pennsylvania)! I would also need permits for electrical and plumbing if I choose to put those in as well.

I am beginning to wonder if it is worth the effort and just to go with some hot beds!

Oh yes Greenhouser, I think you mean Laserfan.

Thanks again

'cough, cough'... plumbing and electrical could always be added at a later time....