| Featured Project
|View the case study here.
Julia Place - Seattle, WA
Julia Place Apartments is a new, five-unit apartment building located in the heart of Capitol Hill in Seattle. Designed by David Vandervort Architects and built by Dovetail General Contractors LLC, Julia Place is one of the first multifamily buildings to take advantage of Seattle's newly-revised low-rise multifamily code. Under the new code, this project was allowed additional dwelling unit density and building height, reduced parking requirements and more flexibility for building placement and design considerations.
To work sympathetically with its neighbors, Julia Place was conceived as a large house, using a gabled roof form to tie into the small apartment buildings and townhomes immediately adjacent. The building stretches from east to west, with extensive southern exposure for all dwelling units. We took advantage of the long, narrow configuration by providing cross-ventilation in all dwellings for summer-time cooling.
|Star Level: 5-Star
|Checklist: Multifamily Apartments
|Verifier: Tom Balderston, Conservation Services Group
|Site and Water
|Indoor Air Quality
|House Size Multiplier
|Project Total Score
Our client brought to the project a desire to make the building very resource efficient. While this is not a net-zero project, many measures were taken to improve the energy and water efficiencies of the building well beyond current codes. The owner requested that durability and low maintenance be a priority for the design of the building. Beyond the wish to reduce energy and water use, our client also brought a desire to provide for the under-served in the local community. Three of the five apartment units are available to a lower-income tenant. One of the units is planned as a fully accessible, type A dwelling unit. This project is now complete and fully rented.
During design, we analyzed several different options for envelope improvements and heating systems, investigating both individual and combined HVAC options. During our discussions, it was learned that the owner was very interested in providing radiant floor heat as a feature of the building. As such, the decision was made to use hot water for space heat.
The heating system installed at Julia Place features a highly efficient air-to-water heat pump linked to a set of thermal pre-heating panels. The hot water is used for both space heat and domestic uses. A high-efficiency gas boiler is used to boost heat output on unusually cold days.
In addition to the solar thermal panels, the pitched roof supports a 6kW PV array that partially offsets the power demand by the entire building.
BUILDING ENVELOPE COMPONENTS AND FEATURES:
Roofs: R-49 ceiling (blown cellulose or hybrid)
Walls: R-25 walls (R-21 batt ADV framed w/ R-4 foam exterior sheathing)
Floors: R-45 framed (batt), R-10 slab (fully insulated)
Windows: U=0.32 (fiberglass double glazed, low-e)
Ext. doors: U=0.25 (fiberglass w/ low-e glass)
Infiltration: ACH = 0.32
Lighting: All lighting in the building is Energy Star rated fluorescent or LED
Appliances: All appliances are Energy Star rated
LOW IMPACT DEVELOPMENT AND RAINWATER CATCHMENT:
The street on which Julia Place was built has no storm sewer available. As such, the city initially asked for a storm sewer extension to be installed as a condition of the project. Given the small size of our building, this would have been an onerous requirement. At the same time, the owner was interested in providing a significant quantity of rainwater for re-use. By maximizing rainwater catchment and utilizing intensive LID (low impact development) measures, we were able to reduce storm water flows to such a degree that the city eliminated the requirement for the storm-water sewer extension.
Harvested rainwater for Julia Place is stored in the crawl space under the building's main footprint. Two 60" diameter pipes are used to store rainwater, collected from the roofs only. The tanks provide 5,800 gallons of rainwater storage. The water is filtered at several locations and pumped to the dwelling units for laundry and toilet uses. The water is also used to meet a significant portion of the irrigation demand for the site. If the tanks empty out during the year, an automatic control switches to city water until the tanks are filled up again.
Julia Place Apartments is a fine example of an environmentally forward thinking building that is sensitive to its context.
Photos courtesy of Michael Shopenn Photography, David Vandervort Architects, and Dovetail General Contractors LLC.
To see other previously featured virtual tours, click here.
| BG Member Spotlight
We'd like to recognize our four oldest member companies, who have been with us since 2000! Thanks for your support for our organization and for green buildings!
Are you a member of Built Green and the Master Builders Association? If so, your company is designated with a small, green tree on the Master Builders Association's website, which signifies you as a Built Green member. Your company is also listed on the Built Green website.
| New Certifications
Dovetail Inc. for certifying their new 5-unit multifamily apartments, called Julia Place, in Seattle as 5-Star Built Green. This is the first certified 5-star multifamily project! Please see this month's case study for details!
Chandler Homes LLC for certifying their new single-family home at 235 Lake Ave. W. in Kirkland as 4-Star Built Green.
Pulte Homes for certifying 20 new single-family homes at 9216, 9220, 9224, 9228, 9302, 9310 and 9326 Nye Ave. SE; 9504 and 9508 Elm Ave. SE; 34105, 34101, 34027 and 34023 SE Mahonia St.; and 9327, 9325, 9326, 9330, 9416, 9420 and 9426 Satterlee Ave. SE in Snoqualmie Ridge (Eagle Point) as 3-Star Built Green.
Polygon NW for certifying 13 new single-family homes at Forest Ridge in Issaquah Highlands as 3-Star Built Green.
Greenleaf Construction Inc. for certifying eight new single-family homes at 5011 47th Ave. W. and 2653, 2651, 2649 and 2647 22nd Ave. W. in Seattle as 4-Star Built Green.
YWCA for certifying their new multifamily apartments at 949 NE Ingram Way at Issaquah Highlands as 4-Star Built Green.
King County Housing Authority for certifying their new 65-unit multifamily apartment complex and the community Seola Gardens in Seattle as 3-Star Built Green.
Green Canopy Homes for certifying their remodel project at 6339 51st Ave. S. in Seattle as part of the 20/20 Refit Challenge.
SRM Development for certifying their new 234-unit multifamily project, called The Lyric, at 230 E. Broadway in Seattle as 3-Star Built Green. See this month's case study for more details.
| Member News
Award-Winning Homes by Local Builder Donna Shirey Featured in New Book:
PreFabulous + Almost off the Grid: Your Path to Building an Energy Independent Home
Two new-construction projects from long-time builder and remodeler Donna Shirey are featured in a new book, "PreFabulous + Almost off the Grid: Your Path to Building an Energy Independent Home," by Sheri Koones. The book features Shirey's 5-Star Built Green Zero Energy Idea House at Bass Cove in Bellevue, Wash., and her Rosemary Beach Platinum House in Florida.
Shirey's energy-efficient homes and 28 others from around the U.S. make the case for how high-performance green building can be good for people, the planet and profits. The book, which includes multiple images of the exterior and interior of each home, reveals how homeowners can achieve similar results with efficient floor plans, emerging technologies and planet-friendly materials.
Detailing a variety of proven eco-building strategies appropriate to homeowners' goals, jurisdictional requirements and local climates, Koones' book is targeted to architects, homeowners and the home-construction industry. The book, which includes a forward by actor, environmentalist and philanthropist Robert Redford, is available on Amazon as a hardcover and e-book.
Town Hall with University Bookstore:
We'll be doing a panel discussion with two local architects and a local builder on Jan. 25 at 6 p.m.