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 if you have a friendly comune and a technical officer there would go along and ask him/her for help.. presume you have an existing drive that needs upgrading... if not could be slightly more difficult.. depending on what type of road you have the drive exiting into... if its comunal...it will be the same person...provincial another place ..etc etc...providing your comune officer is willing to talk with you and be reasonable.. accepting plans drawn by you and measurements you could do it yourself.. especialley if you have an existing poor driveway...if not.. then this isnt the place to be asking... you need to find a local geomtra..try and get a friend to suggest one and then pay him/her for drawing up plans and submitting them to the comune.. the DIA is a light form of planning permission... if they accept what you have put forwrd its basically given permison and is usually say for maintenance or slight changes.... main problems i would think are with the measurements.. if anywhere close to a boundary a geometra will need to be involved to take accurate measurements so that you will not have disputes with neighbours..    

As usual - Adriatica is correct. Get a local geometra [ask around for recommendations] - he will be able to give you a rough guide as to what it will cost, and how long it will take [assuming it can be done].  If that's OK - then get him to do the plans, submissions to the Commune, and get the estimates for the work. Don't fall into the trap of getting an outsider as the geometra, [even if he does speak English] - a local geometra knows how to work the system - a priceless asset. Good Luck! 

As Alan says, try and use a local Geometra in your Comune as his advice will be invaluable re; who to see, what the local situation is on such matters and also any special requirements the local Technical Officer may require re materials and standard. Ask a neighbour or friend locally to recomend one if your struggling.