Below are estimators provided to assist with calculations frequently utilized during the development process. Some are self-explanatory, and others have instructions for use. In all cases, the estimators are based on the Gorham Land Use and Development Code. It is suggested that prior to the preparation of engineered plans you or your representative read the Land Use and Development Code to familiarize yourself with requirements set forth in the Ordinance for development.
Chapter 1, Section V - Definitions defines ‘Net Acreage’ and ‘Net Residential Density’. It is important that you realize the method for subtraction of land areas from the gross lot area differs from zone to zone. For example the Density Estimator for a Standard Subdivision for All Zones Other Than Rural provides a cell for the deduction of land area to be utilized for ‘streets and rights-of-way’. You must manually enter the gross lot area (GLA) of your parcel and area(s) to be deducted in the appropriate cells. This estimator will then calculate the total number of dwelling units allowed based on the Net Lot Area.
The Density Estimator for a Standard Subdivision for the Rural Zone requires less data entry since the Land Use and Development Code requirement for the Rural zone is ‘15% of the gross lot area for roads and parking’. In this instance, the square footage is automatically calculated once the GLA of the parcel is entered into the appropriate cell. More detailed instructions are provided with the particular estimators.