346 Highland St, Weston, MA 02493


HERS Index Score: 19
Living area size:
Lot Size:
Building year:
Number of Floors:
Property Features:
Fireplace, Patio, Gym
Interior Finishes:
Zero VOC Paint, Eco-Friendly Interior Wood Materials, Little to No Off-Gassing Materials, Eco-Friendly Kitchen & Bathroom Cabinets (All), Quartz Countertops, Low VOC Sealant & Adhesives, Pre-Finished Flooring
Indoor LED lights (whole house), Exterior Energy Efficient Lights
Windows, Doors, Roof:
Energy Efficient Windows (whole house), ENERGY STAR Windows, ENERGY STAR Rated Exterior Doors
Insulation & Sealing:
Insulation (R25+), Spray Foam Insulation, Exterior Ridged Foam Sheathing Insulation (EPS) (ISO), Attic Insulation (R50+), Air Sealing (whole house), Attic Insulation with Continuous Air Barrier, Insulation in Foundation Areas (R10+)
Additions: Existing building is preserved, Reused Construction Materials, Responsibly Sourced Lumber (All), Recycled content Siding, Fiber Cement "Hardi Board" Siding
Garages & Hardscape:
Pervious lot
Landscape & Patio:
Drought Tolerant or Native Plants, Water Efficient Irrigation, Storm Water Protections, Timer on Irrigation Systems, Large Shade Trees, Maintained Mature Trees
Solar kW:
Energy Efficiency:
Air Leakage Test (max ACH1 @ 50)
Water Sources:
Rain Water Collection System
Water Efficiency:
Water efficient toilets, Water efficient bathroom faucets, Water efficient kitchen faucets, Water efficient bathroom shower heads, Energy efficient electric heat pump water heater, Hot Water Demand Recirculation, Sump Pump in Basement with Cover
Microwave, Energy Star rated Clothes Washer, Energy Star Rated Appliances, Gas Stove, Induction Stove, Energy Star rated Clothes Dryer:, Energy Star rated Dishwasher, Energy Star rated Refrigerator
Smart Technology:
Smart Security Camera, Smart Smoke and CO2, Smart Lock, Smart Lights, High-Speed Internet, Whole House Home Automation
Ventilation & Air Quality:
Whole House Ventilation System (HRV/ERV), Air Seal (garage)
ACH (Air Changes per Hour):
HVAC ENERGY STAR rated, Energy Efficient Heat Pump (HSPF 9.0+), HVAC Equipment (not over-sized), Energy Efficient Ducted Mini-Splits, Mini-Splits: Ductless 16+ EER, Variable Speed Blower, Air handlers located within conditioned spaces (all units)
Electric Car Charging Station:
Electric Vehicle Charging Station
Walk Score Value:

Sage Features (eco & smart)

LEED Platinum, Energy Star, HERS Rated, DOE Zero Energy Ready, EPA Indoor airPLUS label, Energy Star registered
Home Energy Rating System (HERS):
HERS 11-20
HERS Rated Score:
Eco Property Type:
Zero Energy Ready
Sage Score:
The Sage Score is a measure of a home’s overall features. 100+
Livability Categories:
Cost Savings. Features which reduce the maintenance & utility costs Cost Savings
Comfort. Has features making the overall livability more desirable such as consistent temperatures and improved air quality. Comfort
Eco-friendly. Has a reduced impact on the environment Eco Friendly
Healthy. Reduced contaminants and/or improved ventilation Healthy
Low-maintenance. Has longer lasting features and/or less frequent maintenance required Low Maintenance
Market resale potential. Has features often equated with a premium resale value Market Resale Potential
Quality. Includes certifications, enhanced building techniques and materials. Quality
Technology. Includes smart and automated features Technology
Potential Benefits:
DOE Zero Energy Ready
- Cost Savings due to better energy efficiency of between 40%-50% compared to a typical new home.

Energy Star
- Cost Savings of up to $250/yr from energy savings averaging 20%-30%.
- Health Benefits from improved indoor air quality when using high-performance filters.
- Eco Benefits of reduced greenhouse gases by 3,287 lbs/yr compared to a typical home.

EPA Indoor airPLUS label
- Cost Savings with a minimum 10% more energy efficiency, and on average 20% more energy efficiency, resulting in lower utility bills as compared to average homes.
- Health Benefits with improved air quality by reducing contaminants like mold, moisture, radon, carbon monoxide, and toxic chemicals.
- Eco Benefits of Indoor airPLUS certified homes as they are ENERGY STAR certified and are typically 20% more energy efficient on average than a typical home.

LEED Platinum
- Cost Savings using approximately 20% less energy, with typical annual energy savings between $645 -$1288.
- Health Benefits of improved air quality with minimal toxins, pollutants, by using high-efficiency air filters.

Zero Energy Ready
- Cost Savings vary, but it's so energy efficiently built that it can be coupled with a renewable energy system which can offset all or most of its annual energy consumption.

Responsibly Sourced Lumber (All)
- Eco Benefits of responsibly managed forest products certified and labeled by FSC.

Reused Construction Materials
- Eco Benefits include reduced waste and production of new materials; essential for sustainable management.

Recycled content Siding
- Eco Benefits include a reduced need for more raw materials.

Fiber Cement "Hardi Board" Siding
- Eco Benefits include fewer dioxins emissions during manufacturing.

Additions: Existing building is preserved
- Eco Benefits include a reduced need for more building materials.

Energy Efficient Windows (whole house)
- Cost Savings of 12% in energy, or $100-$274/yr.
- Eco Benefits include reduced energy usage which reduces greenhouse gas emissions.

- Cost Savings of up to $583/yr compared to single-pane windows & up to $197/yr compared to double-pane, clear glass windows.
- Eco Benefits include reduced energy usage which reduces greenhouse gas emissions.

ENERGY STAR Rated Exterior Doors
- Eco Benefits include reducing heat loss in the winter and keeping cool air inside when it’s warm outside, for reduced energy usage.

Insulation (R25+)
- Cost Savings of as much as $300/yr.
- Eco Benefits include reduced significant heat loss through exterior walls.

Insulation in Foundation Areas (R10+)
- Cost Savings vary, but energy costs are reduced.
- Eco Benefits include saved energy, protected basement walls from environmental damage, and providing a drainage plane for water.

Spray Foam Insulation
- Cost Savings include reduced air leakage and its associated heating and cooling costs.
- Health Benefits inlude limiting the infiltration of allergens and pollutants.

Exterior Ridged Foam Sheathing Insulation (EPS) (ISO)
- Eco Benefits include improved air tightness, addeds R-value, reduced chance of condensation in wall cavities, and greatly reduced thermal bridging through studs.

Attic Insulation (R50+)
- Cost Savings of up to 5% in energy usage.

Attic Insulation with Continuous Air Barrier
- Eco Benefits include reduced moisture problems and ice dams, and controlling heat gain or loss.

Indoor LED lights (whole house)
- Cost Savings of up to $75/yr in energy costs when replacing 5 incadescent bulbs with ENERGY STAR light bulbs.

Water efficient bathroom faucets
- Eco Benefits include savings of approximately 20% water use. WaterSense bathroom sink faucets save 30%+ water use.

Water efficient toilets
- Cost Savings averaging $110/yr.
- Eco Benefits like saving between 20%-60% in water use.

Energy efficient electric heat pump water heater
- Cost Savings of 33% to 50% in energy, or up to $330/yr and $3470 lifetime.
- -

Hot Water Demand Recirculation
- Cost Savings of up to $122/yr.

Rain Water Collection System
- Cost Savings of up to 40% in water consumption.
- Eco Benefits include reduced streambank erosion from stormwater runoff.

Sump Pump in Basement with Cover
- Health Benefits include a reduction in moisture and odors, and help in keeping out radon gas in basements.

- Cost Savings of $36/yr for southern climates, $94/yr for northern climates.

Energy Efficient Ducted Mini-Splits
- Cost Savings of 30%-40% in energy.
- Health Benefits include improved air quality & humidity control, reducing allergy symptoms, asthma, and other health problems.

Mini-Splits: Ductless 16+ EER
- Cost Savings up to 60% in heating and 30% in cooling.
- Health Benefits include less dust, since forced air is not traveling throughout the space via ducts where dust can collect.

Variable Speed Blower
- Health Benefits of improved air quality.

Air handlers located within conditioned spaces (all units)
- Cost Savings of up to 15% on air-conditioning costs.

Smart Lights
- Cost Savings of up to six times more energy efficiency than incandescent lighting.
- Eco Benefits include not containing mercury compared to compact fluorescent bulbs.

Electric Vehicle Charging Station
- Cost Savings of roughly $860/yr in fuel costs.
- Health Benefits include improved air quality with less health problems and costs caused by air pollution. EVs are also quieter than petrol/diesel vehicles, which means less noise pollution.
- Eco Benefits include reducing the emissions that contribute to climate change and smog and allowing greater diversity of fuel choices available for transportation.

Whole House Ventilation System (HRV/ERV)
- Cost Savings with reduced heating and cooling costs.
- Health Benefits include minimizing outdoor pollutants, back drafting of combustion gases from fireplaces or appliances, and removing moisture and pollutants.

Little to No Off-Gassing Materials
- Health Benefits include deterring associated health issues such as sore throats, headaches, allergy symptoms, respiratory problems, heart disease and cancer.

Eco-Friendly Interior Wood Materials
- Eco Benefits are that responsibly sourced hardwood comes from well-managed, sustainable forests, and recycled finishes reclaim waste materials.

Low VOC Sealant & Adhesives
- Health Benefits include reducing potential harm to the kidneys, liver and nervous system, reducing respiratory irritants, reproductive issues, nausea and headaches .

Zero VOC Paint
- Health Benefits include improved air quality by reducing off-gassing and associated harmful effects.

Pre-Finished Flooring
- Eco Benefits are that far less solid hardwood is used than typical wood floors.

Quartz Countertops
- Health Benefits include reduced odor, bacteria, mold and mildew growth.

Gas Stove
- Cost Savings of 10% to 30% to operate compared to electric.

Induction Stove
- Eco Benefits include a reduction in energy used for cooking with a 90% efficiency.

Energy Star rated Refrigerator
- Cost Savings of up to 15% in energy that can save $270 over 5 years.
- Eco Benefits include a reduction in greenhouse gas emissions, equivalent to that of 870,000 vehicles.

Energy Star rated Dishwasher
- Cost Savings of 12% in energy and 30% in water.
- Eco Benefits include reduced air pollution, that combats climate change and aids in water resource conservation.

Energy Star rated Clothes Dryer:
- Cost Savings of $200 lifetime.

Energy Star rated Clothes Washer
- Cost Savings of 25% in energy and 33% in water that can save $35/yr in utility costs.
- Eco Benefits include a reduction in greenhouse gas emissions.

Pervious lot
- Eco Benefits include supplemented ground water, and reduced stormwater runoff, pollutant concentrations, urban heat island affect, and need for de-icing salt.

Drought Tolerant or Native Plants
- Eco Benefits as little to no supplemental watering is needed.

Large Shade Trees
- Cost Savings as summer shade and winter sunlight reduce air conditioning and heat usage.

Maintained Mature Trees
- Eco Benefits of reducing the potential to harm, or even kill the tree, include that mature trees provide an abundance of eco-friendly benefits from shade, to storm-water run off reduction, to wildlife habits...

Water Efficient Irrigation
- Eco Benefits like reduced water usage by 30% to 70%, compared to a conventional sprinkler system.

Timer on Irrigation Systems
- Eco Benefits include avoiding over-watering, maintaining plant health, and reducing runoff.

Storm Water Protections
- Eco Benefits include protecting city sewers from being overwhelmed by stormwater runoff, and protecting nearby streams and rivers from damage through erosion.

Air Seal (garage)
- Health Benefits include improved indoor air quality.

Air Sealing (whole house)
- Cost Savings of $83-$166/yr in energy costs.


LEED Version: LEED v4.1 BD+C:Residential Single Family
Level: Platinum
Score: 92.0
Date: 2019-05-08
Home Energy Rating System (HERS) Index Score: 19
Date:: March 21, 2019
How does the HERS index work?: This home is 81% more efficient than a standard new home.


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