Builder Lookup · Alexandria, Arlington and Fairfax permit record
Design by Co
Virginia contractor license 2705147197, Class A (no limit on contract size), specialties Residential building, Commercial building, Plumbing, Natural gas fitting provider contracting, Concrete contracting, Commercial improvement contracting, Home improvement contracting, Gas fitting contracting and Highway/heavy. Licensed since September 5, 2012; expires September 30, 2028. Per the DPOR regulant list retrieved September 11, 2026.
Vienna, VA
City of Alexandria
Design by Co has 38 jobs on City of Alexandria permit records issued September 1, 2022 to September 15, 2026 (39 permits), mostly plumbing work. Retrieved September 15, 2026.
Jobs by year
Peer groups
In Plumbing: Not enough record to compare. 3 jobs since September 1, 2022.
Works for
Worked for individual homeowners on 97% of jobs; the rest were company-owned properties (builders, investors, LLCs).
Crew
No electrical, plumbing or mechanical firm shares 3 or more permitted sites with this firm on record.
Where they work
Jobs by zip code
- 2230416 jobs
- 223147 jobs
- 223115 jobs
- 223024 jobs
- 223013 jobs
Zip codes and map cells with fewer than 3 jobs are not shown.
Map of City of Alexandria showing where Design by Co has submitted permits, as shaded cells; the zip code list gives the same information.
Each shaded cell is about 0.7 km²; darker means more jobs there. No addresses are shown.
Arlington County
Design by Co has 16 jobs on Arlington County permit records issued September 1, 2022 to September 10, 2026 (17 permits), mostly plumbing work. Retrieved September 11, 2026.
Jobs by year
Peer groups
In Plumbing: 7 jobs, median declared value $3,000 (group median $3,000).
Not enough record to compare. 7 jobs since September 1, 2022.
Works for
Worked for individual homeowners on 100% of jobs; the rest were company-owned properties (builders, investors, LLCs).
Crew
No electrical, plumbing or mechanical firm shares 3 or more permitted sites with this firm on record.
Where they work
Jobs by zip code
- 222064 jobs
- 222013 jobs
- 222023 jobs
- 222043 jobs
Zip codes and map cells with fewer than 3 jobs are not shown.
Fewer than 3 jobs in any one map cell, so no map is shown.
Fairfax County
Design by Co has 7 jobs on Fairfax County permit records issued September 1, 2022 to September 12, 2026 (7 permits), mostly plumbing work. Retrieved September 12, 2026.
Jobs by year
Peer groups
In Plumbing: 7 jobs.
Not enough record to compare. 7 jobs since September 1, 2022.
Works for
Worked for individual homeowners on 100% of jobs; the rest were company-owned properties (builders, investors, LLCs).
Crew
No electrical, plumbing or mechanical firm shares 3 or more permitted sites with this firm on record.
Where they work
Jobs by zip code
Fewer than 3 jobs in any one zip code.
Zip codes and map cells with fewer than 3 jobs are not shown.
Fewer than 3 jobs in any one map cell, so no map is shown.
Sources and notes
- Arlington County permit records (open data API), retrieved September 11, 2026
- Arlington County permit portal, retrieved September 11, 2026
- City of Alexandria APEX permit portal (public search and permit details), retrieved September 15, 2026
- Fairfax County PLUS permit portal, "Building Records Issued" report, retrieved September 12, 2026
- Virginia DPOR regulant lists (contractor and tradesman licenses), retrieved September 11, 2026
- City of Alexandria: permits issued September 1, 2022 to September 15, 2026. First permit in window September 14, 2022; most recent August 25, 2026. 39 permits, 38 jobs.
- Arlington County: permits issued September 1, 2022 to September 10, 2026. First permit in window September 9, 2022; most recent July 21, 2026. 17 permits, 16 jobs.
- Fairfax County: permits issued September 1, 2022 to September 12, 2026. First permit in window December 8, 2022; most recent May 22, 2026. 7 permits, 7 jobs.
- Jobs are distinct permitted sites; a site with several permits counts once.
Permit records show what was permitted, when, and by whom. They do not show workmanship, price fairness, or unpermitted work. Declared values are entered by applicants and are commonly understated. Completion figures reflect the county's closing process and are shown only relative to peers in the same window. City of Alexandria, Arlington County and Fairfax County disclaim the accuracy of their data; so does this site.
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Name as written on county permits:DESIGN BY CO. DPOR license number 2705147197.