415 Mathilda in Sunnyvale at dusk. Glass entry, wood screen, the lights on inside.

Net zero energy. More profitable than building to code.

We develop carbon neutral, zero net energy buildings with a strong emphasis on the health and wellness of the people inside them, at a price point that is quantifiably more profitable than building to conventional standards.

Sustainability and profitability are not mutually exclusive.

We weave time-tested passive methodologies together with current technology into a fabric of sustainability that is cost effective. Insulation, thermal mass, daylight, and natural ventilation do most of the work. The building's systems harvest what nature gives us for free: light, fresh air, power, and comfort.

What zero net energy means.

Zero net energy

A building that generates all of the power it uses, on site, from renewable sources. Solar, wind, geothermal.

Operationally carbon neutral

An all-electric building. No carbon-based fuel is burned to run it, whether the power is made on the roof or bought from off-site renewables.

A net zero energy bill

The economic goal. On an annual billing cycle, the electric bill at the end of the year is $0. Our buildings generate about 80 percent of what they use and the utility's rate structure does the rest.

Why don't developers renovate existing buildings to zero net energy, with health and wellness in mind?

  1. It's too expensive.
  2. It may not work. It's too risky.
  3. Development is hard enough as it is. Why add another level of complexity?
  4. I've done fine doing things the way I've always done them.

Every one of those is an economic objection, so the answer has to be economic.

The payback.

At 435 Indio Way, renovating to our goals instead of to code added $49.84 a square foot to the cost. Had the building been sold the day after occupancy, at a 6.5 percent market capitalization rate, that work had added this much to its value:

Actual operating expense savings, $0.45 a square foot a month
$89.78
Above-market rent achieved, $0.20 a square foot a month
$36.92
Rent from leasing in 3 months instead of the market's 18
$22.81
Leasable area gained from six inches of exterior insulation
$7.32
Additional value the day after occupancy, per square foot
$100.29
Not counted above: lower reserve requirements for HVAC and tenant improvements
$29.85

A 21 percent quantifiable real estate return on the $49.84 investment, 2.01 times the money. Counting what the tenant gains from a healthier building, 58 percent and 7.59 times. How the finance pencils →

Why zero net energy.

For building ownership

  • Significantly more profitable than building to code
  • Less maintenance and property management
  • A new class of building stock, which reduces leasing risk
  • More adaptable to changes in use
  • Long-term financial stability

For tenants

  • Insulated from rate increases; expenses stabilized
  • Healthier, more productive employees
  • A recruiting tool for sought-after talent
  • Operational differentiation from competitors
  • A more resilient, adaptable workplace
  • Progress on ESG goals, and the image of a good corporate citizen

Six buildings in California, all of them zero net energy.

Every one is an existing building, renovated rather than replaced. Together they are about 245,000 square feet that produce as much energy as they use.

435 Indio Way, Sunnyvale.47951 Westinghouse Drive, Fremont.640 Clyde Court, Mountain View.380 N. Pastoria, Sunnyvale.117 Easy Street, Mountain View.415 Mathilda, Sunnyvale.

435 Indio Way

Sunnyvale. 31,759 square feet, 2014. A commercial building renovated to zero net energy in 2014, and the proof project. South-facing skylights and electrochromic glass light it every day of the year; the exposed concrete, operable windows, and fans keep it comfortable. ASHRAE named it the most innovative sustainable building of the year in the United States.

More on this building →

47951 Westinghouse Drive

Fremont. 82,408 square feet, 2017. A manufacturing building renovated to zero net energy while the tenant ran two shifts, sixteen hours a day. The load came down first: LED lighting, a tuned HVAC system, insulation, window film, a reflective insulated roof. Then a 1.02 megawatt system on the roof and over the parking lot took the bill to zero.

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640 Clyde Court

Mountain View. 36,982 square feet, 2019. A fully renovated envelope and a 200 kilowatt solar system gave the building a new face and a net zero energy bill, at a price point more profitable than renovating to minimum code.

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380 N. Pastoria

Sunnyvale. 45,383 square feet, 2016. Every light, fan, window, and skylight actuator is powered over Ethernet, and the lights are tuned to the color of the sun through the day. A watertight bifacial solar canopy makes a protected outdoor workspace with filtered light and about a third of the building's power.

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117 Easy Street

Mountain View. 14,852 square feet, 2015. The smallest of the six. The scale made the roof and the ceiling the whole design: skylights, solar, solar thermal, and HVAC above; lights, fans, ducts, and cable trays below. Walls that open all the way.

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415 Mathilda

Sunnyvale. 33,750 square feet, 2015. A forty-year-old racquetball court with almost no glass; eighty-six windows were cut in. A 660 square foot living wall, accordion doors to the patio, and dynamic glass keep the occupant connected to outside. The tenant chose where to sit by the light.

More on this building →

$49.84added to the cost, per square foot, over a standard renovation

$100.29added to the value, per square foot, the day after occupancy

91 → 22.5energy use intensity before and after, kBtu per square foot per year

93%of the demolition reused

4.67 yearssimple payback for the owner

21.4%return on a net cost of $1,966,453 after incentives

$0the tenant's cost of power, set for the next twenty years

$6.15Mincrease in building value

200 kWof solar on a renovated envelope

$0energy bill

2019the most recent of the six

1/3of the building's power from the solar canopy over the patio

100%of the covered patio leased at full rental rate

98.5%of the demolition reused

92.5%of the demolition reused

14,852square feet, the smallest building to reach zero

86windows cut into a building that had almost none

660 sfliving wall, two stories tall

2016Silicon Valley Business Journal Structures Award, best green project