Case studies

Certified in the real world.

Not renderings — finished, inspected, occupied buildings. A home that produces more energy than it uses. Forty-eight units of certified affordable housing. All-electric apartments thriving through Michigan winters. Here's what the standard looks like built.

HERS −10
The lowest score here — a net-positive Silver home
60+ homes & units
From custom builds to affordable housing at scale
3 project types
New construction, renovations, and multifamily
Empire House exterior with rooftop solar array
GreenStar Silver New construction Single-family

Empire House

Empire, Michigan

HERS 14 vs ~100 for a typical new home

An all-electric 2,600 sq ft home by Endura Performance Homes with continuous exterior insulation, a 4.86 kW solar array with battery backup, and ducted energy-recovery ventilation — airtight at 0.69 air changes per hour.

Badges DOE Zero Energy Ready EPA Indoor airPLUS ENERGY STAR
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Vastu Shastra Sanctum modern two-story exterior with heat pump
GreenStar Silver New construction Single-family

Vastu Shastra Sanctum

Grand Rapids, Michigan

HERS −10 produces more energy than it uses

Built by R-Value Homes with insulated concrete form walls and one of the first air-to-water heat pumps in the nation for radiant heating and cooling. Rooftop solar plus 27 kWh of battery storage send roughly 3,000 kWh back to the grid each year.

Badges GHI Zero Energy Electrified Living Peak Load Shaver
R-Value Homes logoImage Design logo
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Capitol Park apartment unit kitchen with ENERGY STAR appliances
GreenStar Silver New construction Multifamily Affordable housing

Capitol Park Apartments

Lansing, Michigan

48 units certified affordable housing

A two-building, 48-unit low-income housing tax credit development by Rockford Construction. All-electric units with right-sized heat pumps, eight fully accessible voucher-reserved units, and mixed-use space near the State Capitol.

Rockford Construction logoConcept Design Studio logo
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Homeowner beside the cold-climate heat pump in falling snow
Certification in progress Renovation Single-family

Little Residence

West Michigan

10/10 DOE Home Energy Score, pursuing Zero Carbon

A 2002 home retrofitted to net-zero carbon by GHI's own Brett Little — heat pump HVAC and water heating, 9.72 kW of solar, and battery storage — financed through an ordinary mortgage refinance where roughly $50/month in utility savings offset the $40/month payment increase.

Badges Electrified Living
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The Gross family holding their GreenStar Certified plaque at their front porch
GreenStar Certified New construction Single-family

Gross Residence

Hamilton, Michigan

HERS 11 with aging-in-place design

An all-electric R-Value Homes build needing under 3,000 kWh a year, met by a 5.92 kW solar array. Insulated concrete forms, battery backup, and zero-step entrances make it as resilient and age-friendly as it is efficient.

Badges Zero Energy Ready Electrified Living Peak Load Shaver
R-Value Homes logoImage Design logo
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Bradford Station three-story multifamily building exterior
GreenStar Certified New construction Multifamily

Bradford Station

Grand Rapids, Michigan

$60/mo average all-electric utility bill

Michigan's first GreenStar multifamily certification, by Bazzani Building Company. Ductless heat pumps carry the building through Michigan winters with average utility bills around $60 a month — retiring the myth that cold climates need gas.

Badges Electrified Living
Cella Building Company (formerly Bazzani) logo
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Bright condo bathroom with wide windows over the Chicago skyline
GreenStar Certified New construction Multifamily

1533 W Superior Street

Chicago, Illinois

First ever GreenStar multifamily certification

The first GreenStar certified multifamily building anywhere — condos by Point B Properties roughly twice as efficient as a typical new build, with fresh-air ventilation, air-cleaning drywall, and every detail third-party inspected and documented.

Point B Properties logo
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Before-and-after collage of an ICCF renovated home
GreenStar Certified Renovation Single-family Affordable housing

ICCF Community Homes

Grand Rapids, Michigan

12 homes certified renovations for affordable housing

The Inner City Christian Federation certified a dozen renovated homes from a 213-unit affordable housing acquisition — each assessed before and after with a Home Energy Score and GreenHome Inspection to verify real improvement, preserving affordability block by block.

ICCF Community Homes logo
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Prickly Pear Sanctuary single-story teal home exterior
GreenStar Platinum New construction Single-family

Prickly Pear Sanctuary

Grand Rapids, Michigan

HERS 7 Platinum, net-zero expected

An all-electric home expected to produce as much energy as it consumes, with ground-mounted solar, passive solar design, CO2-controlled fresh-air ventilation, and a frost-protected shallow foundation that minimized site disruption.

R-Value Homes logoImage Design logo
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What these projects prove

Three lessons from the built record.

Cold climates aren't a barrier

Nearly every project here is all-electric in Michigan. Bradford Station's heat pumps carry residents through winter on roughly $60 a month — the performance argument is settled in the field, not the brochure.

Affordable housing can certify

Capitol Park certified 48 tax-credit units; ICCF certified a dozen renovated affordable homes. Certification isn't a luxury finish — it's a quality floor that residents feel in their health and their bills.

Existing homes count

The Little Residence took a 2002 house to net-zero carbon through a plain mortgage refinance, with utility savings covering the payment. The standard is a path for the homes we already have.

Your project could be next.

Every project above started with the same published checklist. Register with the GreenHome Institute, or size up your own home first with the scorecard.

Register your project Take the scorecard