“Whole House” Remodeling Completion

Photo: Right Corner.

Photo: Completed exterior.

We are pleased to announce the completion of the “whole house” remodel that we began last year in the Palisades area of Northwest Washington DC. This has been a successful collaboration of our team, including architect, owner, our preconstruction, construction and project managers, our carpenters, subs and vendors. As you can see from our “before” and “after” photos below, this was a challenging job that involved removing the back half and one corner of an older existing masonry house and seamlessly extending and modernizing the home entirely under the careful direction of the architect and our site managers. O’Neill Development has done numerous complex remodeling jobs; as well as large and small new construction projects over our 40 year history. The Owners and Architect have expressed their complete satisfaction with our careful and efficient stewardship in bringing this project to completion, from pre-construction planning to move-in.

Photo: Ground floor construction. 

Photo: Completed exterior. 


O’Neill Development’s Passive House/Zero Energy Initiative Completion

O’Neill Development, along with architect David Peabody, have continued our commitment to “sustainable green” building with the completion of the first “modular” passive house in the Metro area and construction of a “net zero” house in Northern Virginia. These after successfully completing passive homes in Bethesda and Rockville, MD. The modular passive house was built under an “affordable house” program for the Housing Initiative Partnership” in Prince Georges County. The Net Zero home is being constructed in Northern Virginia. Photographs illustrate the modular house setting and the Net Zero contemporary style.

Pictures show our modular passive setting and completed house for Housing Initiative Partnership.

Photo: Foundation 

Photo: Transferring the modular unit 

Photo: lowering the unit 

Photo: Modular Unit in place 

Photo: The Completed Home 

Photo: Interior view Photo: Interior view from above

Photo: Passive House Completed.

“Whole House” Remodeling

Photo: Full View.One of the most difficult jobs in the building business is “whole house” remodeling. At O’Neill Development (OD) we call it “graduate work” because of the degree of difficulty and the knowledge required to manage such a complex job. OD is currently involved in a whole house remodel in the Palisades area of Northwest Washington, DC. The work actually started with demolition of the entire rear of the house including one corner and half of the existing roof. The difficulty was in holding up multiple floors and the front gable of the 3 story roof while the extension was added. This involved inserting large intersecting steel beams to support the upper floors in place of the rear walls and the corner of the house that was removed. It should be noted that removing the corner of an existing house creates huge risk in potential “racking” of the entire structure because it removes 1/4 of the support of the house. Our crews successfully completed this difficult maneuver with speed and efficiency.

Of course when a new extension is added, it must be accomplished in such a way to create a seamless addition to the original house.

In the images below one can see the original gable shape of the house and the sequence of pictures showing the side of the house with the rear corner and roof removed and the beams in place to hold the upper floors to accommodate the extended first floor.

O’Neill Development has accomplished many of these complex jobs over the years. This particular renovation was designed by the North Carolina architectural firm of Meyer Greeson Paullin Benson for a couple from North Carolina, both of whom hold down demanding jobs. So the additional difficulty of sometimes long distance communication and coordination to make sure all details and owner/architect wishes were executed precisely was an additional challenge. But OD field and site staff have brought this complex project to the finishing stage and are scheduling completion late this Spring. Hats off to Rob, Kerri of OD and their respective teams.

Photo: Right corner.

Photo: Left corner.

Photo: Interior.

O’Neill Development’s Passive House/Zero Energy Initiative

The Chelsea House in Bethesda.

O’Neill Development recognizes the sound principles of sustainability and the importance of “Green Building” and is committed to best practices in this area. Back in 2010 O’Neill Development, along with green architect David Peabody, were the first to design and build a “Passive House” in the Washington Metropolitan area and the 22nd in the United States… The “passive” method of construction originated in Germany and involves creating a super insulated structure with constantly re-circulating fresh air and even temperatures throughout. A PH home uses roughly 90% less heating and cooling energy than the average home. It is designed as an integrated system, with site, energy, ventilation, air quality, humidity, health and comfort all taken into account.

Since that first Passive House in Bethesda, MD, O’Neill and Peabody have built their second and third passive houses in Rockville, MD and Prince Georges County, MD areas respectively. The latter is a modular passive house completed for the Housing Initiatives Partnership for sale to a low/moderate income buyer. This PH is the first modular passive house in the Metro region. O’Neill and Peabody are currently building under contract a net zero house built with Passive House principles but not certified as PH in Arlington VA. For further information on this Passive House initiative, visit: passivehouse.greenhaus.org.