Lot research is a great “sweat equity” item right at the beginning. EquityQuest will complete this research for a fee (fee amount based on location), but most folks find they enjoy the experience and learn a lot about the place they will live.
This is the checklist we use when starting lot research for ourselves or as a paid service for a client.
Find out what you can on-line.
You can find links to zoning and overlay information including ADU regulations), setback requirements, legal descriptions, tax maps, historical surveys and some utility information on city and county map sites like those below:
Portlandmaps.com https://www.portlandmaps.com/
Cmap (Clackamas County) http://cmap.clackamas.us/
Washington County Intermap http://washims.co.washington.or.us/InterMap/
Marion County Survey Graphic Index https://gis-marioncounty.opendata.arcgis.com/
Use Tax Maps or historical surveys and create a scaled plot plan which includes:
Location and size of existing structures
Proposed ADU location
Distances to ADU from all propert lines and all existing structures
Existing utilities and plans/path to connect ADU to them
Construction Access
Final Access - driveways, sidewalks, porches/decks
Take the above information to the building/planning department of the city or county that has jurisdiction. These offices are open to the public. We have found these department staff members friendly and helpful. They are there to help everyone - not just builders and developers. Let the receptionist know you are buying a lot and need to know what is required for building a home on it - they will route you to the right people.
Items to verify:
Zoning:
Is an ADU allowed on your lot
If not, what alternatives are allowed
Planning: are there any restrictions or special requirements you need to be aware of
FEES: what fees will be charged to build other than the building, mechanical, electrical and plumbing permits. These are sometimes called SDC fees. Examples:
Sewer
Water
Storm Water
Parks
Transportation
School Tax
Sewer
Can you connect to existing sewer connection?
If septic, is your septic system rated for an additional bedroom(s)
Water
Can you connect to existing water meter?
Storm Water Requirements:
Can you connect to an existing storm water system?
Will you need to retain storm water on property? If so what are design requirements?
Access
Are there any restrictions on road access and/or driveway requirements?
Talk to the power company serving your area to see what requirements they may have to extend current service to your ADU.
Talk to the gas company in your area (if gas is desired) to see what requirements they may have to extend current service to your ADU.
Obtain and review any CC and R’s for the subdivision. What are restrictions on accessory structures?