Concord building committee reviews $171 million middle-school estimate; debates solar, soils and cuts

Concord School District building committee members on Sept. 10 reviewed a reconciled cost estimate of $171,000,000 for a proposed new middle school at the Runlet site and discussed options — including geothermal, rooftop solar and a long list of value‑engineering items — to reduce taxpayer impact and schedule risk.

Barb, an architect with HMFH, told the committee that the reconciled total includes the building, site work and soft costs and warned the group that the site’s soils were worse than expected. “It's a $171,000,000,” Barb said, listing the roughly $123,000,000 building cost and about $20,000,000 in site work as the primary components of that total.

The estimate and follow‑up discussion matter to taxpayers because the district’s finance staff presented scenarios showing how borrowing and rebates could change property tax bills. Jack, the district’s finance presenter, said one financing scenario would result in an initial increase of about $228 a year for an owner of a $350,000 home, and noted that net reductions are possible in subsequent years if the district uses trust funds and anticipated rebates.

Why it matters: committee members said the project’s cost, timeline and the district’s ability to capture federal tax credits could determine whether the district proceeds now or delays, which would increase escalation and risk. Architects and estimators also said site conditions require ground improvements that add time and expense and make renovating the existing school on its current footprint infeasible without moving students off site.

Most important findings and options

• Soils and site work: HMFH and the geotechnical report found problematic soils on parts of the Runlet site that would require ground improvements such as rammed aggregate piers and additional lateral bracing. Barb and other presenters said the geotech results added millions to the site budget and that abatement and demolition of the existing building are about $2,800,000; combined site premiums and phased‑construction needs contributed to the estimate’s increase compared with earlier scenarios.

• Energy systems and federal credits: architects recommended a net‑zero target with geothermal and rooftop solar; they said recent federal tax provisions (described in the presentation as extended tax credits) materially improve the economics of geothermal and can make a full solar program pay back sooner. The team estimated adding a 100% solar build‑out raised the base estimate by about $5,600,000, but flagged that buying a portion of the solar equipment early could lock in tax credits. Jack and the architects advised the committee that the timing of purchases affects eligibility for the credits.

• Reconciliation and contingency: the design team reconciled two independent cost estimates from Harvey Construction and an HMFH estimator to within roughly 3%, then used Harvey’s numbers for value‑engineering work because Harvey will be the GMP contractor. Presenters explained that owner‑held contingency, construction manager contingency and soft costs are included in the total and that reducing scope lowers contingency because the contingency percentage is calculated on total project cost.

• Schedule and early start: the team recommended an “early bid package” strategy (releasing foundations and long‑lead items at about 60% drawings) to save escalation; they estimated an early start could save roughly $2,000,000 and shorten schedule midpoints, making an April 2026 ground start possible and occupancy in fall 2028 if the board and community process allow.

Value‑engineering choices discussed

Committee members walked through a long list of potential cuts and add‑alternates intended to preserve core program elements while lowering price. Items discussed at length included deleting or reducing an auditorium in favor of a cafetorium; moving the dedicated band room onto the stage; reducing maker‑space footprint in the media center; changing sloped metal roofs to architectural shingles; deleting the extended entry canopy; and site‑level decisions such as retaining three high‑quality grass fields, converting one field to synthetic turf as an add‑alternate, irrigation choices, and whether to include solar canopies over parking. Presenters emphasized that some cuts (for example, removing a permanent auditorium) would be difficult to reverse later and that others (trees, some playground elements) could be staged or fundraised for later.

Quotes and cautions from the meeting

• On soils and renovation feasibility, Barb said the geotechnical results mean a renovation of the existing building would require extensive underpinning and likely displace students for the duration: “you would have to essentially move every kid out of Runlet for the entirety of the renovation,” she said.

• On the program and classroom sizing, Tina, a design presenter, summarized why the new building is larger than the existing school: “the building was designed to support kind of the team teaching model that the middle school uses,” and classrooms were increased to meet recommended square‑foot targets.

• On taxes and financing, Jack said one funding scenario that uses facility trust balances and assumes anticipated rebates would translate to a modest, one‑time increase for homeowners in year one and then decline in following years: “that impact is a 65, cents per thousand, where the first year, a $228 increase,” he said in the presentation.

What the committee decided and next steps

The committee did not take a final vote on scope or financing at the Sept. 10 meeting. Members asked staff and the design team to carry most of the items as add‑alternates (so they can be omitted from the base bid and added later if funds allow), to continue to pursue federal and utility rebates, and to provide a refined cost estimate and schedule updates for the school board meeting on Sept. 24. Presenters also said they will refine the tax‑impact scenarios and early‑bid packaging assumptions before the board’s next meeting.

Bottom line: the team presented a reconciled, fully loaded estimate of $171 million for the Runlet middle school, flagged site‑specific soil remediation and schedule risk, and offered a menu of value‑engineering and phasing choices. The building committee moved to retain most core program elements while carrying a long list of possible alternates and asked staff to return with updated cost, rebate and tax‑impact analyses at upcoming meetings.

Ending: The committee paused formal decisions to allow more public engagement and to give staff time to refine numbers; the board will consider the updated estimate and the committee’s recommendations at a Sept. 24 meeting.