Builder Lookup ยท Loudoun, Fairfax, Arlington and Alexandria permit record
Prospect Solar LLC
Virginia contractor license 2705146949, Class A (no limit on contract size), specialties Alternative energy system contracting and Commercial improvement contracting. Licensed since August 23, 2012; expires August 31, 2028. Per the DPOR regulant list retrieved September 11, 2026.
Sterling, VA
Loudoun County
Prospect Solar LLC has 25 jobs on Loudoun County permit records issued July 1, 2023 to August 31, 2026 (25 permits), mostly solar installations. Retrieved September 11, 2026.
Jobs by year
Peer groups
In Solar: 22 jobs, median declared value $28,500 (group median $19,868).
In Additions and second stories: Not enough record to compare. 1 job since July 1, 2023.
Loudoun County's reports carry no closing dates, so no timing or completion labels are shown for Loudoun County.
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
- 201485 jobs
- 201755 jobs
- 201763 jobs
- 201803 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
Prospect Solar LLC has 12 jobs on Fairfax County permit records issued September 1, 2022 to September 12, 2026 (12 permits), mostly solar installations. Retrieved September 12, 2026.
Jobs by year
Peer groups
In Solar: 12 jobs.
About typical for this group, based on 12 closed permits in this group. County review cycles, owner decisions and final-inspection scheduling are all inside this number.
Completion above the group median, based on 12 permits in this group. County review cycles, owner decisions and final-inspection scheduling are all inside this number.
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.
Arlington County
Prospect Solar LLC has 8 jobs on Arlington County permit records issued September 1, 2022 to September 10, 2026 (9 permits), mostly solar installations. Retrieved September 11, 2026.
Jobs by year
Peer groups
In Solar: Not enough record to compare. 2 jobs since September 1, 2022.
In Commercial: Not enough record to compare. 2 jobs since September 1, 2022.
In Electrical: Not enough record to compare. 1 job since September 1, 2022.
Works for
Worked for individual homeowners on 25% 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
- 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.
City of Alexandria
Prospect Solar LLC has 3 jobs on City of Alexandria permit records issued September 1, 2022 to September 15, 2026 (6 permits), mostly solar installations. Retrieved September 15, 2026.
Jobs by year
Peer groups
In Solar: Not enough record to compare. 3 jobs since September 1, 2022.
In Electrical: Not enough record to compare. 1 job 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
- 223143 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.
Sources and notes
- Arlington County permit records (open data API), retrieved September 11, 2026
- Arlington County permit portal, retrieved September 11, 2026
- Loudoun County issued building permit reports (monthly), 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
- Loudoun County: permits issued July 1, 2023 to August 31, 2026. First permit in window October 16, 2023; most recent November 7, 2025. 25 permits, 25 jobs.
- Fairfax County: permits issued September 1, 2022 to September 12, 2026. First permit in window November 9, 2022; most recent August 14, 2025. 12 permits, 12 jobs.
- Arlington County: permits issued September 1, 2022 to September 10, 2026. First permit in window December 5, 2022; most recent November 10, 2025. 9 permits, 8 jobs.
- City of Alexandria: permits issued September 1, 2022 to September 15, 2026. First permit in window September 27, 2022; most recent August 4, 2023. 6 permits, 3 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. Loudoun County, Fairfax County, Arlington County and City of Alexandria disclaim the accuracy of their data; so does this site.
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Name as written on county permits:PROSPECT SOLAR LLC; PROSPECT SOLAR, LLC. DPOR license number 2705146949.
Work by category (jobs): solar installations 44; electrical work 3; additions 2.