onshore

Industrial & flex space in San Carlos.

Industrial leasing guide

Compare San Carlos industrial and flex options for engineering, assembly, storage, and testing. Use the map to compare Industrial Road and Old County Road, then check the actual suite requirements.

1121 Industrial Rd view 1
San Carlos

1121 Industrial Rd

2,907 SF · $11,483/mo + NNN · computed

San Carlos / Peninsula

299 Old County Rd view 1
San Carlos · 2 spaces

299 Old County Rd

6,480 SF · $16,070/mo · computed

San Carlos / Peninsula

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2 public properties to compare

Listings come from Onshore’s public industrial inventory. Published availability and specifications require reconfirmation for the unit and intended operation. A collection update is not an individual broker verification.

Industrial Road: separate base rent from NNN

The 1121 Industrial Road record uses a NNN rent structure and publishes three-phase, 200-amp power. Request the current additional-expense estimate and the voltage and capacity allocated to the unit. Do not compare its base rent with a gross quote until the expense responsibilities are aligned.

Old County Road: compare available units

299 Old County Road has multiple unit records. Compare the actual suite size and monthly price rather than multiplying a whole-property area by one unit’s rate. Confirm any combined-unit option, demising work, common access, and how equipment moves through the chosen premises.

A Peninsula search around the process

Include neighboring Belmont and Redwood City options if the team’s commute and delivery patterns allow it. Compare usable work area, power, loading, and required improvements before choosing a city. Belmont / San Carlos is a combined research submarket; the published benchmark is not a small-suite price guarantee.

Industrial asking-rent context

Kidder Mathews reported $2.39/SF/month NNN average direct industrial asking rent for Belmont / San Carlos in Q2 2026. This is a broad research benchmark, not the rent for a particular small unit; quoted suites differ in condition, size, included space, and expense structure.

Source: Peninsula industrial market report, Q2 2026 · checked September 20, 2026.

Compare the actual monthly asking rents above, then add expenses, utilities, and improvements. Calculations are marked computed. For an annual rate, multiply by suite area and divide by 12; for a monthly rate, multiply by suite area.

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Unit details to check before a tour

1121 Industrial Rd
Unit / areaMonthly asking rentPublished powerLoadingClear heightAvailability
Unit H · 2,907 SF$11,483/mo + NNN · computedBuilding: 3-phase · 200 amp; suite allocation unconfirmedNot confirmedNot confirmedNow
299 Old County Rd
Unit / areaMonthly asking rentPublished powerLoadingClear heightAvailability
Unit 4 · 3,240 SF$8,035/mo · computedNot confirmedNot confirmedNot confirmedNow
Unit 5 · 3,240 SF$8,035/mo · computedNot confirmedNot confirmedNot confirmedNow

Building-level specifications may not describe the chosen suite. Confirm voltage, phase, allocated capacity, loading rights, measured clear height, floor loads, ventilation, and permitted operation.

Build the shortlist around the work

Bring your equipment list, layout, delivery needs, monthly budget, and operating date. Sam can compare the units and coordinate the questions that need an answer before a lease.