Merge close but non-contiguous polygons in the same feature layer

Question

I would like to merge polygons that are close to one another but do not share a common boundary (see screen capture). I have tried 'dissolve' with and without multipart features checked, and 'dissolve boundaries', and using merge in the edit toolbar but nothing has worked.

I am looking for something like 'dissolve if not further than 100 feet' or something like that. The aggregate polygons tool looks promising but it creates all these additional shapes. You can see from the attribute table that there is only one entry for all of the polygons which is confusing to me - is this a multipart shape? Thank you for any ideas.

Capture.PNG

ChristopherCounsell_0-1719983333678.png

JayantaPoddar · Accepted Answer

Let's see if these steps work for you.

1. Start with Aggregate Polygons. Aggregation Distance = 100 feet (as per your example).

2. Execute a Spatial Join.

Target Features = Parcel layer

Join Features = Aggregate Polygons Output layer

Match Option = Largest overlap (or) Intersect

*Consider adding an "ID" field to capture the value of Join_Features' OBJECTID (if required).

3. Dissolve the output layer of the spatial join, using the "ID" field.