What tool would I use to group many parcels into its own respective group. For example, if parcels A, B , C have group ID of 1 then I would like to have parcels A, B, and C combined into one larger parcel. Is there a tool that does this without me manually digitizing it?

Also, I have another layer called street center lines, and would like the larger parcel to have the street center line as its boundary if it is lying next to a street center line.

Please refer to the images below


The first photo shows many parcels that have the same ID group.

enter image description here

The second photo shows a close up view of street center lines next to the parcels.

enter image description here

The third photo shows the desired result. Each larger grouped parcel has a boundary that is next to each other.

enter image description here

1 Answer 1


To combine features into one larger feature based on the value of a particular field, use a Dissolve operation.

According to the help,

[Dissolve] creates a new coverage by merging adjacent polygons, lines, or regions that have the same value for a specified item.

enter image description here

  • Because the dissolved polygons aren't touching, there may be a need to incorporate a convex/concave hull on the groupings as well to get something close to the desired output.
    – Fezter
    Commented Dec 21, 2018 at 1:53
  • Ah, I missed that piece. There are some reasonable ideas here: Algorithm to fill the gaps adjacent to parcels.
    – Andy
    Commented Dec 21, 2018 at 14:25

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.