Basement Finishing & ADU Construction — Washington, DC and Maryland
Basement Finishing & ADU Construction — Washington, DC and Maryland
Your basement is the most under-used square footage in your home — and one of the highest-return investments you can make. A and E Construction LLC turns unfinished basements into legal rental units, in-law suites, home theaters, gyms, and offices throughout Washington, DC and Maryland. We handle the zoning research, the permit set, the egress engineering, the MEP rough-in, and every layer of finish work. You meet with one project manager, sign one contract, and receive one keys-in-hand turnover.
Services We Provide
From simple basement finishing to fully permitted ADU construction, we coordinate design, permitting, trade work, inspections, and turnover under one managed construction process.
Full Basement Finishing
Accessory Dwelling Units (ADU)
In-Law Suites and Multi-Generational Living
Waterproofing & Moisture Control
Egress, Electrical, Plumbing, and HVAC
DC vs. Maryland: Knowing the Difference
ADU regulations differ significantly between the District of Columbia and Maryland's various jurisdictions, and they continue to evolve. In DC, ADUs are permitted as a matter of right in many residential zones, subject to lot-area, owner-occupancy, and parking requirements established under the Zoning Regulations of 2016 and subsequent amendments. In Maryland, regulations vary by county — Montgomery County, Prince George's County, and Howard County each maintain their own ADU and accessory-apartment frameworks.
A and E Construction begins every basement-ADU engagement with a zoning review for your specific address. We confirm whether a basement apartment is permitted as-of-right or requires a special exception, what setbacks and egress dimensions apply, and what the permit pathway looks like. You receive a clear answer before you commit to construction — not after.
Our Process
Free Consultation
Eric Persaud or Yodie Narain meets you on site, walks the basement, listens to your goals, and gives you a candid read on feasibility and budget range — no obligation.
Zoning & Permit Research
Before design begins, we research the zoning rules that apply to your address and confirm what is permitted. Where the project is complex, we engage Shelton Group CS for permit expediting. For ADUs requiring special exception or BZA review, we coordinate with land-use counsel.
Design
We engage D3 Architecture for the architectural set, A&A Structures for any structural work such as egress cuts, beam pockets, and post relocations, and AEK Engineering for MEP design. Drawings are coordinated before they are submitted for permit.
Construction
Yodie Narain leads construction. Typical basement-finishing projects run six to ten weeks; full ADU build-outs run twelve to twenty weeks depending on scope and inspection cadence.
Final Inspection & Turnover
We coordinate every required inspection — framing, insulation, MEP rough, MEP final, building final, and certificate of occupancy where applicable. You receive a complete turnover package: as-built drawings, MEP equipment manuals, and warranty documentation.
Ready to convert your basement into a real asset?
Schedule a free, no-obligation consultation. We will give you a candid read on what your address allows and what your project will cost — before you commit a dollar.
Schedule a Free Consultation Call (202) 746-0659Basement Finishing & ADU Work
Code-compliant basement conversions, legal ADUs, in-law suites, and finished living spaces across DC and Maryland.
Testimonials
Hear It From Our Clients - And Read It on Google Reviews
Gene Kuleta
The guys at A and E Construction are the best. They are responsive, creative and thorough. I hired them to build floating bookshelves, put up wallpaper in two rooms, create a niche for storage covered by a barn door and build furniture to contain filing cabinets. They exceeded my expectations. I had lots that I wanted done, and Eric and Chambers thought creatively about how to accomplish it.
Paul Looker Provenza
I hired A and E Construction for a small bathroom renovation, and I cannot recommend them highly enough. The communication from bidding to punch list was outstanding. Eric kept me updated every step of the way and helped work through material selection. The craftsmanship and quality of work from the crew was also excellent.
Christopher Ahn
A and E Construction is highly recommended. Would recommend 10/10. Extremely professional, knowledgeable, and thorough. We replaced our windows with A and E Construction and it was a very smooth and easy process. Eric explained every step of the process and answered all of our questions. Nothing but great things to say about Eric and his team!
R. James
Had the pleasure of working with A and E multiple times.. They are true professionals. Second to none in my opinion. If you want an honest company that will do good business from start to finish, call A and E!
Greg Carter-Hewitt
As a realtor in the DMV, A and E Construction is the company that I refer new homeowners and clients that need upgrading/remodeling or total renovation. Everyone that I have referred to A and E Construction have been extremely satisfied. There is no job they can’t do!!
Our Licenses & Registrations
Certified to Build. Registered to Deliver. Trusted to Transform.
