Frequently Asked Questions

Who is The Mare Island Company?

The Mare Island Company attaches a single name to a focused team. Assigned by the owners of the island’s developable land (Nimitz Group), and its managers and developers (Southern Land), our team is entirely focused on the enduring vision and values that will shape Mare Island for years to come.

What is the Mare Island Company proposing?

The Mare Island Company seeks to revitalize and transform the Island into a mixed-use community with an array of housing choices, entertainment, hospitality, and business opportunities.

When do you expect to break ground? What is the general project timeline?

We are moving forward on multiple fronts and expect development to progress in phases.

Coral Sea Village

Coral Sea Village is anticipated to be our first project to break ground. Because it was approved under the existing Specific Plan, has new infrastructure already in place and has been counted within the available sewer capacity, we can proceed.

Connolly Corridor

We submitted our pre-application for design approval for Connolly Corridor in September 2023. Following review by all City departments, concerns were raised by the Vallejo Flood and Water District (VFWD) regarding sewer capacity. The timing of groundbreaking for this project is contingent on the City and VFWD collaborating to resolve questions surrounding infrastructure responsibility, ownership, and sewer capacity. Once there is alignment on a path forward, Mare Island Company is prepared to begin construction.

Longer-Term Outlook

We originally intended to lead with broader development under a new Specific Plan, but given the time required to complete that process, we pivoted to these near-term activation efforts to maintain momentum. Looking ahead, the new Specific Plan — along with the Environmental Impact Report (EIR), Development Agreement (DA), and Infrastructure Plan — is anticipated to be completed in 2027, setting the stage for larger-scale development across the island.

Is the City supportive of the project?

City officials understand the positive impact this project can have on Vallejo and the greater Bay Area. All concerns that community members raise are discussed with City officials on a regular basis.

What are the differences between the two terms sheet referenced in the (DDA)?

Please refer to the Community Meeting Presentation on 9/29/21 which is available on our website.

How large is the project?

MIC is looking to develop approximately 800 acres of the 5,000-acre island.

Who is the architect?

We are working with several architects, engineering, and urban planning firms. HOK is leading the team that is developing the new Mare Island Specific Plan, with BCV Architects and Einwiller Kuehl on Connolly Street. As the project continues, more specialists will be added to the team.

Will there be height limits? What will the increased density look like?

We will follow the regulations put in place by the City of Vallejo. 

How can you ensure historic preservation?

We place a high priority on maintaining Mare Island’s legacy – while creating an urban space that ensures equity and diversity. Preservation of the island’s significant historic resources is a key priority.

How will you create an environmentally friendly island?

Being environmentally conscious is one of our top priorities. We have a full-time environmental engineer on staff, and, in addition, as part of the Specific Plan and EIR analysis we are looking into sustainable strategies. We are also consulting with transportation engineers on strategies for car-lite options for Mare Island.

What is your streetscape plan?

There will be enhanced pedestrian amenities such as new sidewalks, curbs, lighting, seating, landscaping, and bike lanes at various locations across the Island. The redevelopment goal for Mare Island is to ensure safety and enjoyment for all.

What is the status of the updated plan for Mare Island and EIR?

The draft Specific Plan should be complete by Spring 2027 and we are optimistic the EIR will be completed in Summer 2027.

Will there be surcharging on North Mare Island? And what does that mean?

What is surcharging? Sites made up of soft cohesive or loose mixed soils generally require some form of ground remediation to be viable for development. Simply put, surcharging consists of applying a load on the ground surface that is heavier than the long-term development conditions in order to accelerate consolidation. This ensures that the ground has the strength and stiffness to support the future use.

Surcharging on North Mare Island is necessary and cannot begin until a new Specific Plan is approved and we receive a new certified Environmental Impact Report - a requirement to begin surcharging. North Mare Island will require approximately two million cubic yards of fill to be compacted over a few years. It is anticipated that the surcharging of North Mare Island will not occur until a later phase of Island development.

How many units will be constructed? How many of those units will be affordable?

We are still very early into planning. All our estimates are subject to change based on feedback from city officials, community members, and local policymakers. Our plan is to contribute to meeting regional housing goals.

Will housing be built near transit-friendly areas?

We will include a Transit Oriented Development Plan in our design. 

Can members of the public purchase historic houses/buildings?

We do not currently anticipate selling any of the island’s historic homes or buildings.

What are the plans for maintenance of the existing officers’ mansions?

There are many historic buildings on Mare Island that require regular maintenance and periodic repairs. Repairing these buildings requires significant capital and resources and will take time to assess, oversee and complete. We have a maintenance and restoration plan that prioritizes buildings based on their current uses and market needs.

How are you going to mitigate the expected influx of traffic onto the island?

We have hired Fehr & Peers as our transportation consultant and will work with their team, community members, and Vallejo officials and the City’s EIR consultant to address the expected traffic impacts.

Has your team conducted a traffic study? When will it be available to the public?

We are still in the planning and outreach phase of the project, and a traffic study will be done as part of the CEQA process. When complete, it will be available to the public.

How will parking change – more, less, shifts from one place to another?

Parking will evolve in support of new uses on the island and will be reviewed as part of the Specific Plan and EIR process and will be included as part of the new Specific Plan.

Are you going to offer shuttles on and off the island?

We understand the need to couple transportation planning with land planning. We will be exploring all options for enhancing transportation.

Will there be a new bridge or bridges?

No new bridge or bridges are planned at this time. The new specific plan will address future transportation needs.

Are you going to offer enhanced ferry services?

The Water Emergency Transit Authority (WETA) provides the existing ferry service, and we will work with them on strategies for boosting ferry service to and from the Island and meshing it with other transit providers to offer the most effective system possible.

How will you ensure pedestrian safety?

One of our top priorities will be pedestrian safety. We will work with our transportation engineer, Fehr & Peers, a leader in the field of pedestrian safety, and they will play a lead role in this area.

What will the island look like for bicyclists?

Consistent with our goal of making Mare Island as transit-friendly as possible, we intend for the island to have biking infrastructure including bike lanes, biking docks, and bikeshare programs.

What is the plan for open green space on the island?

We recognize the rich natural environment we enjoy on Mare Island, and our plan will seek to strengthen easy trail and sidewalk connectivity among the open spaces on Mare Island – while looking to create new open space opportunities, as well as enhance existing parks and open spaces.

What are you doing to make sure you’ve adequately studied and addressed sea-level rise? Have you made any project changes based on considering this concern?

Our team continues to work with experts to conduct site reviews to assure our project plans will protect Mare Island from climate change. Our team has included climate induced challenges into our planning.

What are you planning to do about potential flooding? Will you be constructing a seawall?

Our team will work with environmental experts to engineer Mare Island to be resilient, combatting anticipated sea-level rise and other climate change outcomes.

Has the project undergone environmental review?

The prior owner spent 20 years working with multiple Federal, State, and local environmental agencies on the remediation that helped prepare large areas of the land for the island’s future development.

Are there still toxic cleanup issues on Mare Island?

There is more environmental clean-up to be done. For detailed information see the posted presentation on our website from 3/31/21 Townhall.

Will the Mare Island San Pablo Bay Hiking Trail be affected?

The San Pablo Bay Hiking Trail will not be affected by development. We will work with the California State Lands Commission to help arrange for maintenance of the trail. 

How will you maintain the Preserve?

The Preserve is owned by the City of Vallejo and so decisions about the maintenance of the Preserve are not ours to make. We look forward to collaborating with the City and the local community on any plans developed for the Preserve.

How will the energy on the island be generated?

We have been exploring the evolving innovations in energy and anticipate the inclusion of smart city practices for energy efficiency.

Will trees be removed?

Some island trees may be removed due to environmental or health-related reasons;  new trees will be planted, as well. But we do not anticipate a significant removal of existing trees.

What are you doing about Community Facility District (CFD) fees?

The current CFD taxes are managed and collected by the City of Vallejo. Under the terms of the City’s recently executed North Mare Island DDA, MIC is to cooperate with the city on the formation of new CFDs as part of the new Specific Plan.

What are the benefits of the project for residents of Vallejo?

It is our desire to revitalize a historic place that will provide interim and long-term recreation, employment, and housing opportunities to residents of Vallejo. Additionally, as part of the Specific Plan, our team will conduct a fiscal impact study, which will be made public once complete.

Have you contemplated what the project’s community benefits package will be? If so, what elements will be included, what specific groups have you negotiated it with, and can you share monetary valuations of those elements?

We are currently working on the community benefits package. We are having conversations with key stakeholders, community members, and elected officials to ensure that the surrounding community’s needs are addressed.

Will there be a community/recreation center?

Our team is exploring how the island operates from a holistic perspective. While gaining an understanding of the ways in which the island works, our goal is to include a range of services that will enrich the operations of this diverse community and bring new amenities to Vallejo.

What is happening with the Mare Island Sports Center?

Multiple structural engineers have confirmed that Building 523 (Sports Center) is seismically unsafe and it was closed in 2020. We understand and appreciate the value the Sports Center brought to the local community over the many years it was active and a new and improved sports facility is an integral part of our plan for the island.

What are you going to do about current business tenants of Mare Island?

Mare Island is a vibrant, dynamic community, and our goal is to grow its business community even further. We're focused on attracting new businesses while continuing to support the ones already here.

Will there be office space?

Yes. The amount of office space will be determined based on demand, and we also have potential commercial space for an incoming institutional partner, healthcare, industrial/flex, or office campus. We are working to determine what that space will look like. We will outline that program in the Specific Plan.

What kind of businesses do you expect to attract?

Our vision for a successful mixed-use community on Mare Island includes all real estate classes: office, residential, industrial, retail, and hospitality. We are continuously talking to potential tenants that are interested in bringing their business to Mare Island.

What amenities will the project provide?

The best amenities are already here, of course. The expansive natural beauty and our outstanding collection of historic structures best define what is unique and special about Mare Island. Having said that, we are exploring how the island operates from a holistic perspective. While gaining an understanding of the ways in which the island works, our goal is to include a range of services that will enrich the operation of this diverse community and bring new amenities to Vallejo.

Are you going to preserve the golf course?

It is unlikely that the golf course will be restored to its prior layout. We are exploring other options as part of our commitment to open space development and preservation and are in discussions with the City and community members.

Do you plan on bringing in a casino?

There are no casinos under consideration at this time.

Will there be live events on the Island?

Yes. We will continue to offer and curate diverse events and experiences on Mare Island — from live music and historic walking tours to cultural community celebrations — with the goal of making the Island a true gathering place for everyone.

How are you handling security during construction and once the project is complete?

During construction, all contractors will be required to have a safety plan in place to address site access and any construction impacts. There will be a designated site safety contact who can be reached at any time, and that information will be publicly accessible. Our focus on public safety will be ongoing, and be planned and executed in conjunction with the City of Vallejo & Vallejo PD.

Will there be a police and fire station on the island?

There is currently police and fire presence on the island in building 127, and Vallejo Police officers and Fire Personnel currently patrol the island. Our plans will address any increased safety concerns as Mare Island begins to expand in size. We will work with the City of Vallejo to develop a plan for public safety for all businesses and residents on the island.

Will there be a hospital on the island?

The Veterans clinic currently operates on the island, and we would like to see medical services expand. We do not have current plans for a hospital but would welcome one on the island. 

Does Vallejo PD patrol Mare Island?

Vallejo PD officers do periodically patrol the island.

Will Mare Island Co. be providing additional security?

During development, the need for additional security will be evaluated and addressed.

How many temporary and permanent jobs will the project create?

Job creation is one of our top priorities. While exact numbers are difficult to predict at this stage, development of this scale will generate a significant number of both temporary and permanent jobs. A comprehensive fiscal impact report will be completed alongside the final Specific Plan. This report will outline the full economic impact of the proposed development, including a detailed analysis of projected temporary and permanent job creation. We look forward to sharing those findings when the plan is released.

Will Southern Land Company commit to the construction being a union project?

We plan on working with local trade unions to come up with the best agreement to benefit the local economy and to gain the full support of local Trade Unions.

Do the local unions support this project?

We intend to gain the full support of the Solano/Contra Costa Trade Unions.

Are you considering jobs training programs? What will they look like? How can I apply? Will Vallejo residents get priority?

We plan to work with local job-training programs to hire and train local workers.

Who will be constructing the project?

Mare Island Co. will be developing many projects going forward, and the contractors will vary from project to project. Additionally, we will continue to strongly encourage all our contractors to hire locally.

What will you do to control noise, dust, and vibration during construction?

All contractors will be required to follow City- mandated protocols for noise, dust, and vibration – all of which will be monitored during construction through a construction management plan, the details of which will be included with each phase of the project.

What will you do to mitigate traffic and parking on and off the island during construction?

All contractors will follow City requirements to minimize negative impacts to parking and traffic flow.