View Photo Gallery: These “before” photos show the colonial home selected to be redecorated by 20 designers. It will be open to the public from April 14 to May 13.

The organizers of the 2012 DC Design House have selected 23 designers to participate in the makeover of 4951 Rockwood Parkway NW. There were 60 proposals submitted for the annual showcase of local design talent that opens to the public on April 14, according to DC Design House spokeswoman Sherry Moeller.

The event, which raises money for the Children’s National Medical Center, will transform the Spring Valley house, with its 10,000 square feet of seven bedrooms, seven bathrooms, four fireplaces and beautiful azalea gardens.

Saturday, February 25 will be the annual Bare Bones Day when the house will be open for viewing from 10 a.m. to 3 p.m. before the designers begin their renovations and decorating. The cost is $5, which can be applied to the $20 ticket for the DC Design House main tour, April 14 to May 13.

You might catch us taking a sneak peak that day ourselves (dying to see the “befores” so we can fully appreciate the “afters”) so check back to this blog and see what we thought. Meanwhile, here’s a list of who was chosen this year. Have you worked with any of them?

Following is the list of designers chosen and the spaces they will redo.

D&A Dunlevy Landscaping from Barnesville, Md. - Outside Entry

Matthew Moore of John Matthew Moore Fine Art in McLean - Foyer and Staircase

Annette Hannon of Annette Hannon Interior Design from Burke, Va. - Parlor

Kelley Proxmire of Kelley Interior Design in Bethesda, Md. - Ballroom/L’Orangerie

Marika Meyer of Marika Meyer Interiors in Bethesda - Music Room

Botanical Decorators Landscape Architecture in Olney - Back Terrace

Shazalynn Cavin-Winfrey of SCW Interiors in Alexandria - Dining Room

Dan Proctor of Kirk Designs in Baltimore - Family Room

Elizabeth Krial of Elizabeth Krial Design in Reston - Bedroom/Modern Nursery

Allie Mann of Case Design/Remodeling, Inc. in Bethesda and Falls Church - Bath

Sharon Kleinman of Transitions in Potomac - Master Bedroom

Shanon Munn of Ambi Design Studio in McLean - Master Deck

Tricia Huntley of Huntley & Co. Interior Design in Washington, D.C. - Master Sitting Room

Carolyn Wilson and Elizabeth Boland of Design in a Day in Bethesda - Hallway

Wendy Danziger of Wendy Danziger Interior Design in Bethesda - Bedroom

Lorna Gross of Savant Interior Design in Bethesda - Bedroom

Susan Nelson of Susan Nelson Interiors in Great Falls - Bedroom

Christopher Patrick of Christopher Patrick Interiors in Washington, D.C. - Bath

Nancy Twomey of Finnian’s Moon Interiors in Alexandria - Bedroom

Nadia Subaran of Aidan Design in Bethesda - Kitchen

Victoria Sanchez of Victoria Sanchez Interiors in Alexandria - Media Room

Brian VanFleet of BVF Design Consulting in Washington, D.C. - Guest Bath

Christopher Boutlier of Christopher Boutlier, Inc. in Washington, D.C. - Back Hallway

View Photo Gallery: Get the details on how nine designers put together their showcase spaces for this ultimate open house benefiting the Children’s National Medical Center.