Barnstable County Registry of Deeds is the official keeper of all deeds and plans for Barnstable County which includes the Town of Dennis. If you wish to view it online please visit the Barnstable County website. You can either get a hard copy of your Deed or Plot Plan directly from them or you can request a copy from the Assessing Office. If you have questions you can also call the Barnstable County Registry of Deeds at 508-362-7733.
A plot plan generally only shows the dimensions of your plot of land. Plans often do not show the location of the home on the property. An "As Built" plan may show more details of your property including where your septic tank is located.