Posted July 2026 | By Eric Engelbert | Updated as the project progresses.
Two Office Sites, One Vision: 668 Apartments at Business Center Drive and Michelson Drive
The proposal at 2021 Business Center Drive and 2151 Michelson Drive takes a two-parcel approach to IBC redevelopment. Rather than converting a single office building, the project joins two adjacent or nearby sites under a single Master Plan application filed December 9, 2025, proposing two separate multi-family residential buildings totaling 668 units. An Environmental Review and a Park Plan were filed simultaneously, indicating that the applicant has assembled the full entitlement package for a coordinated review rather than staggering the applications.
The 2151 Michelson Drive building is a 93,000-square-foot two-story office structure that was renovated as recently as 2020, making this an unusual case where a recently upgraded office property has been redirected toward residential conversion. The 2021 Business Center Drive parcel is a separately addressed companion site within the same Planning Area 36 geography. Together, the two sites support a residential program that would be one of the larger individual projects in the IBC pipeline, behind only the Centerpointe campus at 830 units.
Two Parcels in Planning Area 36: Business Center Drive and Michelson Drive
Business Center Drive and Michelson Drive are both internal streets in the Irvine Business Complex. Michelson Drive, named for Nobel Prize-winning physicist Albert A. Michelson, is one of the primary east-west connectors through the IBC, running between the 405 Freeway corridor and the Jamboree Road employment spine. Business Center Drive is a shorter connector that links parcels within the internal IBC street grid.
The 2151 Michelson building has the characteristics of a quality suburban office product from the IBC's development era. At 93,000 square feet across two stories, it is a low-rise building with substantial surface parking, which is typical for IBC office buildings developed before structured parking became standard. The 2020 renovation suggests the building was maintained in competitive condition for office leasing in the years immediately before the residential conversion application was filed. Whether the renovation reflected a tenant improvement for a major occupant or a speculative upgrade for new office tenants is not clear from public records, but the investment was relatively recent.
The 2021 Business Center Drive parcel provides the second piece of the project's two-building structure. Developing both sites under a single Master Plan allows the applicant to present a unified community plan, with shared design standards, a common architectural vocabulary, and potentially coordinated site amenities between the two buildings. This type of multi-parcel Master Plan approach is common in Irvine's planning process, which was designed from the outset to address planned communities rather than individual parcel-by-parcel development.
Two Buildings, 668 Units: The Project at a Glance
The 668-unit total is divided between two multifamily residential buildings, one at each address. The specific split between the two buildings, along with unit type breakdown, floor plan sizes, and proposed amenities, will be established through the Master Plan review process. The December 2025 application package represents the entry point for that review, not the final approved program.
At 668 units total, this is a large residential community by any standard. The scale puts it in a category typically associated with well-capitalized institutional apartment investors with the equity and debt capacity to finance a $200 million or larger development. The developer entity has not been publicly confirmed in city filings reviewed at time of writing. City planner Eric Martin is the assigned contact for the project.
The Environmental Review filing that accompanied the Master Plan and Park Plan applications in December 2025 indicates the applicant intends to address CEQA concurrently with the land use entitlements rather than deferring the environmental process. This parallel approach is consistent with a developer who has done the preliminary environmental analysis and believes the project can be reviewed and cleared under one of CEQA's available exemptions or negative declaration pathways, rather than anticipating a full EIR.
Two buildings
Two parcels
Single Master Plan
Planning Area 36
Irvine, CA 92612
IBC location
93,000 SF existing office
2020 renovation
Planning Area 36
Park Plan Dec 9, 2025
Environmental Review Dec 9, 2025
Planning Commission review
| Project Addresses | 2021 Business Center Drive and 2151 Michelson Drive, Irvine, CA 92612 |
|---|---|
| Total Units | 668 multifamily residential units (two buildings) |
| Planning Area | PA 36 (Irvine Business Complex) |
| Existing Building (2151 Michelson) | 93,000 SF, two-story office, renovated 2020 |
| Master Plan Filed | December 9, 2025 |
| Park Plan Filed | December 9, 2025 |
| Environmental Review Filed | December 9, 2025 |
| City Planner | Eric Martin |
| Developer | Not publicly confirmed at time of writing |
| Project Status | Entitlements under review |
The December 2025 Application Package: What a Simultaneous Filing Signals
Filing the Master Plan, Park Plan, and Environmental Review applications on the same date is a deliberate strategy that signals a high level of pre-application preparation. In Irvine's entitlement system, each of these documents supports and cross-references the others: the Environmental Review evaluates the impacts of the program established in the Master Plan, the Park Plan is calculated from the unit counts in the Master Plan, and the Master Plan cannot be deemed complete without the environmental analysis underway. Submitting all three on December 9, 2025 tells city staff and the Planning Commission that the applicant has done substantial pre-application work and is ready for concurrent review.
For a 668-unit project on two parcels, the Environmental Review is likely to be an Initial Study leading to a Mitigated Negative Declaration or a Notice of Exemption for urban infill, depending on the specific environmental conditions of the sites. A project of this scale in the IBC, an urbanized commercial area with existing infrastructure, would typically qualify for one of CEQA's infill exemptions if the project meets the applicable criteria, including consistency with the applicable general plan, location within an urbanized area with existing utilities, and no significant effects on traffic, noise, or air quality beyond what would be expected from the proposed density.
The Park Plan is a required submission for any residential project in Irvine. The city's park dedication requirement is calculated on a per-unit basis, and a 668-unit project generates a substantial parkland obligation. This is typically satisfied through a combination of on-site recreational amenity space and an in-lieu fee payment into Irvine's park fund, structured to meet the specific formulas established in the city's park dedication ordinance.
668 Apartments and the IBC's Transformation into an Irvine Neighborhood
The office-to-residential conversion wave in Irvine's IBC is not a marginal phenomenon. Adding up the projects currently in the entitlement pipeline in Planning Area 36, the total new residential supply proposed ranges from the 58 condos at 3400 Michelson to the 830 units at Centerpointe, with the Business Center Drive / Michelson Drive project contributing 668 units to what is becoming a concentrated residential community in an area that was purely commercial a decade ago.
That transformation changes the character of the IBC in ways that matter to future residents, to nearby employers, and to property owners throughout the airport area. A corridor with thousands of new residents needs restaurants, coffee shops, dry cleaners, pharmacies, and the other retail and service businesses that serve a residential population. The office parks that were built as single-use employment centers are becoming genuinely mixed neighborhoods, which attracts the commercial tenants and street-level activity that makes urban areas livable.
For prospective renters interested in the Business Center Drive and Michelson Drive project, the two-building structure means the eventual community will have two distinct addresses and potentially two distinct building identities, even if managed under a single brand. This can be an advantage for large communities: residents in one building have access to amenities in both, the total community has a larger pool of neighbors, but each building operates at a human scale that fosters more connection among residents than a single thousand-unit tower could achieve.
Interested in Irvine IBC Apartments or New Residential Development?
The 2021 Business Center Drive and 2151 Michelson Drive project is in the early entitlement stage and has not yet received Planning Commission approval. We follow all active IBC development and can notify you as this project advances. We also work with clients looking for rental or purchase options in the IBC corridor right now.
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