Home value will be most affected by square footage, acreage, and property type A bigger house will be more expensive than a smaller one A house in an area zoned for farming will be less expensive per acre than a house zoned in a residential area.
Variables Used: ◦ Adjusted sales price ◦ Land size ◦ Effective year built ◦ Living area ◦ Bedrooms ◦ Full bathrooms ◦ Half bathrooms ◦ Zone ◦ Stat Class (Residence Type) ◦ Study Area ◦ Zones Models Tried KNN Regression General Linear Regression CHAID Neural Networks CART SMV
The Auto Numeric node was used to develop the 7 models The RMS Error was used to shortlist the top 3 models:
Stat Class SA_3.0Living Area Land Size Full Bath BedRes. Zone Yr. Built House House Zillow.comRegressionKNNNeural Networks House 1$152,500$153,015$157,550$162,239 House 2$281,506$288,429$271,470$231,136
2 main errors: ◦ Overpriced houses Not of major concern as house prices can be brought down by gauging market interest ◦ Underpriced houses Top 3 models underpriced houses by 5%, 36% of the time
Use the model for different counties Refinement of current model by adding appraised values Make KNN more user-friendly
We recommend the regression model Generally, our hypothesis was accurate ◦ Variables seen as most important were square footage and lot size ◦ Certain property types were also seen as important Half bath was seen as an important variable Zoning was not seen as a very important variable in indicating house prices