Municipal Tree Inventory and Instructions for Use

Identification of all trees in the municipal right-of-way.
Phone NumberEmail Address

Municipal Tree Inventory


A Basic Introduction to Using the Municipal Tree Inventory

1.   Go to the tree inventory website:

 Do not be concerned if you see the message:  “Your browser is not Microsoft's Internet Explorer. There is some functionality in this site that will not work outside of Internet Explorer.” The website works with other browsers.


3.   QUICK LOOKUP will appear in the center of the screen with a Princeton map below.

4.   The FROM and TO fields are used to find a range of addresses or a single address. For a range – enter the start and end of the range for example, in FROM enter 100, in TO enter 150. For a specific street address, such as 232, enter the number 232 in both the FROM and TO fields.

5.   Tab or move cursor to the STREET field. Type in the street name. A pop-up window will appear showing street name(s).

6.   Click on the street name then click on LOOK UP ADDRESS.

7.   A new window will appear listing the SITE MATCHES for the address(es) you requested. The list will contain all trees associated with the address(es) in your request.

 For an address with more than one tree, the location of each tree is identified first by HOUSE NUMBER, then by STREET NAME (corner properties may have trees on two streets), then by SIDE (the location on the property  - Front, Side, Rear), and lastly by the SITE # (position on the property). The table and text below provide an illustration and explanation. A key to remember is that the SITE # is assigned in relation to the direction of the flow of traffic alongside the property (see below).

The table below indicates that the property at 116 Moore Street has 7 trees associated with it:  3 in front and 4 on the side (this house is on a corner). Even though 4 trees are on the side of the property on Hawthorne Avenue, they have the same property address as the trees in front of the house so their site location is attributed to the Moore Street address.

The traffic moves south on Moore Street in front of this property (toward Nassau), so SITE #1 is the first tree you pass walking south in front of the property. The tree closest to the street corner is labeled Front 2. On the side of the property (Hawthorne Avenue) the first tree closest to the corner is labeled Side 1 and the tree furthest from the corner is labeled Side 3 (indicating that the direction of the traffic is moving away from the street corner).

8.   Below the MATCHING SITES data is a map of Princeton. To zoom in on the property and the trees, click on the YELLOW CIRCLE located on the MAP TOOL BAR directly above the map. The 7 trees associated with 116 Moore Street appear as yellow dots on the map. The + and – magnifying glasses and the hand tools enable you to zoom in and out and move the map.

9.   For each tree in the list, you can switch to the VIEW SITE window to see the Latin name of the tree species and its size (diameter at shoulder height - DSH) by clicking VIEW at the right of the listing.

10. The VIEW SITE window also contains 3 icons at the top of the page that provide additional information: National Tree Benefit Calculator (current and projected estimated annual benefit to the community); Google Maps (street view of the property and the tree(s)); and Bing Maps (topographically shaded map).

11. When you are finished looking at the database, click LOG OFF (left side of window).

12. To go to another address, click on SITES at the far left of the screen.

13. In the FIND window that opens, click FIND and in the new window that opens (a variation of the first FIND window) type in the address or range of addresses in the FROM and TO fields as before. In the STREET box select street name, then click on FIND SITE button at top of window.

14. In the SITE WINDOW that opens, the trees associated with the newly selected address(es) appears. BUT – the map below does not change until you click on the YELLOW CIRCLE located on the MAP TOOL BAR directly above the map. The new map will then appear.

15. We hope you find the information provided useful. The database is a work-in-progress so please contact the Princeton Shade Tree Commission at with questions or concerns.

Additional Resources

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Relevant Documents

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2018 Annual Police Report22

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