Mammoth site plan: 10,400 sq ft workshop/warehouse in Umatilla
- Proposed
- Approved
- Building
- Done
Site plan for Phase I of an expansion of Mammoth Constructors: a 10,400 sq ft workshop/warehouse with stormwater, parking and buffers on 2.24 acres north of Lake Gem Road and south of Roberts Street, zoned Industrial PUD. Owner: DRT, LLC. Staff recommends approval with conditions. It was on the City Council agenda on Sep 15, 2026.
Outcome confirmed: The Umatilla City Council approved Resolution 2026-24 (Mammoth site plan) on September 15, 2026 by unanimous voice vote, per the September 15, 2026 minutes placed for approval in the October 20, 2026 agenda packet (not yet formally approved).
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Outline shows the parcel(s) named in the record. Zoom in for 2025 county aerials.
Key facts
- Type
- site plan
- Status
- approved (September 15, 2026)
- Government
- Umatilla
- Near
- Umatilla
- Location
- North of Lake Gem Road and south of Roberts Street
- Size
- 2.24 acres
- Building area
- 10,400 sq ft
- Applicant
- DRT, LLC
- Case / record
- 2026-24
What this means
A site plan is the detailed layout of a project: buildings, parking, drainage and landscaping. Staff or a board checks it against the code before construction permits. How this process works →
Timeline & official records
- September 15, 2026Umatilla Regular City Council Meeting Agenda, Sep 15, 2026
- September 15, 2026Umatilla City Council minutes, Sep 15, 2026 (draft, in Oct 20, 2026 agenda packet)
How we placed this on the map
- Alternate key(s) 1125219, 3388984, 3826246 named in the record
Property appraiser: Alt Key 1125219, Alt Key 3388984, Alt Key 3826246
Compiled by RLW Realty from public records; summary written from the staff report. Status can change between our weekly updates; confirm with the agency before relying on it.
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