Thank you for your question. I look forward to working with you to provide you the information you are seeking for educational purposes only.
The problem with all HOAs is that even though city and state laws may allow for something, the HOA by their declarations and covenants are allowed to make it more restrictive than the state or local law and residents who buy in these areas are bound by those more restrictive covenants
in contract to the HOA. What this means is that if you begin to build contrary to what the HOA says and contrary to the covenants the HOA can sue you for breach of the covenants and make you stop and can even make you take down what is in violation.
You do have recourse though. If the HOA denied your request, you are entitled to an appeal and to present your evidence to the board as to why it should be allowed by presenting photographs of every other property in the HOA with the similar construction you propose and argue to the board that by their failure to enforce this on others they waived their continued right to enforce this restriction or ask for a waiver based on them allowing others to have the same type construction.
If the board denies your appeal without good cause and because there are others with the same or similar structures, then you have a right to go to court against the HOA and seek a "declaratory judgment" that the HOA denial was arbitrary and capricious and without any good cause and ask the court to declare you have a right to construct this drive and wall as you proposed.
The case law is not as specific as you may think and each of these cases is determined on a case by case basis and usually never reach the appeals court which is where decisions are written and published, so that would not do you as much good.
Furthermore, if this needs to go to court for declaratory judgment you will need an HOA attorney to represent you on the matter in court.
I truly aim to please you as a customer, but please keep in mind that I do not know what you already know or don't know, or with what you need help, unless you tell me. Please consider that I am answering the question or question that is posed in your posting based upon my reading of your post and sometimes misunderstandings can occur. If I did not answer the question you thought you were asking, please respond with the specific question you wanted answered.
Kindly remember the ONLY WAY experts receive any credit at all for spending time with customers is if you click on OK, GOOD or EXCELLENT SERVICE even though you have made a deposit or are a subscription customer. YOU MUST COMPLETE THE RATING FOR THE EXPERT TO RECEIVE ANY CREDIT, if not the site keeps your money on deposit.
Also remember, sometimes the law does not support what we want it to support, but that is not the fault of the person answering the question, so please be courteous.
This is NOT the practice of law nor is it legal advice to you, it is merely educational information for you to use to seek out a licensed attorney in your state to get actual legal advice from them. Please use sites such as http://www.martindale.com or http://www.lexmundi.com or http://www.hg.org to find a local attorney to get actual legal advice in all matters.