HD Squared Architects

Custom ResidentialResidential renovation interior kitchen for home addition

HD Squared Architects has been designing quality custom residential projects since 1999. These projects range from new custom waterfront homes to renovations and additions large and small, including both interior design and exterior design.   Our designers collaborate closely with the homeowners to determine their needs and expectations while meeting their budget and lifestyle. Our designs reflect a sensitivity to both the natural and built environments by creating beautiful spaces for livability, durability, and sustainability.




Rendering of hospitality redesign for commercial interior redesignCommercial Interiors

Our team at HD Squared Architects has combined decades of experience in Commercial Interior Design including Commercial test fits, Office Interiors, Hospitality and Retail. Projects include Comfort Inn Conference Center, Chessie’s Restaurant and Bar, RHG Office and Facility Build-Out, CTC Office Expansion, AAFB Law Office Renovation (with BWH Architects) and various other retail and service industry build-outs.  Our role is to develop an in-depth understanding of your company and your goals in order to create space/s that will enhance your team’s productivity and engage your clients.






Historic Perkins Chapel exterior renovationHistoric Preservation / Adaptive Reuse

At HD Squared Architects, we believe making the most of our built resources in which our communities have already invested is a paramount aspect of sustainability. At the same time, Historic Preservation and Adaptive Re-Use maximizes the investment and benefit to the local economy. HD Squared has secured hundreds of thousands of dollars in grant funding to assist our clients in these projects.



Melanie Hartwig-Davis at Washington Suburban Sanitary Commission Discussion SpeakingConsulting / Project Managment

After two decades in the architectural field, HD Squared has gained expertise in a variety of areas that can benefit your project or potential project.

FEASIBILITY STUDIES and CONSULTATIONS – We perform Residential Feasibility Studies for new home sites and for potential renovations and additions.

PERMIT EXPEDITING and NEGOTIATIONS- HD2 has collaborative relationships with permitting offices in several Maryland counties. If the permitting process is, or is expected to be, a challenge for your project, Melanie Hartwig-Davis has a proven track record for successful negotiations with county officials.

STORM WATER MANAGEMENT and SITE DESIGN – Our passion for marrying the built and the natural environments often has us mistaken as Landscape Architects.   It would be our pleasure to assist you in designing your site to maximize your investment and enjoyment of your property. Many municipalities have tax credits and rebates for implementation of storm water management best management practices. HD2 can provide the documentation needed for this process. When beneficial, we work closely with Civil Engineers to ensure our client’s visions are met in a holistic manner.

OWNERS AGENT – Contact us for assistance and representation if your project requires representation at County or State hearings for procedures such as Variances and Bond Bill applications.


Additional Capabilities



  • Universal Design
  • Smart Homes
  • Renewable Energies
  • Custom Built-Ins
  • Sustainable Design
  • Waterfront Homes



  • Storm Water Management
  • Landscape
  • Hardscape
  • Permit Expediting
  • Kitchen and Bath Design


Contact us today to get started on your next architecture or design project!