Private Development Services

Our Development Services group provides services from processing entitlements to providing map and plan review to ensure smooth progress throughout the development cycle to project completion.


  • Tentative Map and Development Entitlement Review and Conditioning
  • Environmental Document Reviews
  • City Surveyor services – Final Map, Legal Descriptions, Lot Line and Certificate of Compliance Reviews
  • Transportation, Utilities and Improvement Plan Check and Review Services
  • Stormwater Quality Compliance Reviews
  • Project Inspections and Construction Management Services
  • Development Agreement and Subdivision Agreement Drafting / Negotiations and Implementation
  • Interim City Engineer and Development Staff Augmentation Services

Key Contact

Michael Kashiwagi, PE
(916) 273-4685

Featured Projects

Goodman Commerce Center & Amazon Warehouse

Client: City of Eastvale

The Goodman Commerce Center in the City of Eastvale is one of the largest, mixed-use developments in Southern California. This 200-acre development includes a business park, retail, and (2) 1 million-square-foot Amazon warehouses, expected to employ 4,000+ people. The actual square footage under the roof of Building #1 is 3 million, as it contains multiple levels of platforms inside. Building #1 also contains 12 miles of conveyor system and 120,000 cubic yards of concrete. Our team at Interwest performed a rough and precise grading plan review for the project site, including drainage and erosion reports and hydrology and hydraulics calculations. Our team also provided building and a MEP plan check for all project components, a structural review of the warehouse foundation, as well as, structural and electrical reviews of the warehouse’s roof-mounted Solar PV System. This impactful project was a complex undertaking that required considerable resources from the City of Eastvale and the Interwest Consulting Group team.

River Oaks Subdivision

Client: City of Galt

Galt is a small, full-service city in the County of Sacramento. Interwest had the exciting opportunity of providing the improvement plan review for 2 of the 3 phases of development bounded by a creek, railroad and county lands. In all cases, plan review timelines of 10 or fewer days were met and during implementation, no more than 3 reviews were required for each phase. The Final Map Reviews for all 3 phases were more challenging due to the railroad and the lack of recorded monumentation along the adjacent county road. However, through close work with the developer’s surveyors, all reviews were completed on time and processing was limited to only 2-3 submittals. One Final Map Certificate of Correction was required when the City and developer changed one street name in order to clarify addressing.

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