Updated: Jun 18, 2026
Location and Projects
Address
13536 JARRETSVILLE PIKE, Phoenix, MD, 21131
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Lothorian Construction
Serving clients throughout Maryland, Lothorian, LLC specializes in swimming pool construction and maintenance. Based in Phoenix, the company is family owned and operated, and has grown into one of the state’s largest pool construction and service providers. Over the course of more than 40 years, Lothorian has built a team of over 60 professionals, including architects, swimming pool and interior designers, and construction experts. The company manages new pool construction as well as ongoing pool service, transforming residential backyards into functional and inviting spaces. Lothorian’s team is widely recognized by their signature "Lothorian Blue" uniforms. The company invests in internal training programs to support skilled development within its staff, aiming to deliver pool projects that enhance outdoor living for homeowners across the region.
Lothorian, LLC Services
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Lothorian, LLC Contact Information
Phone Number: (410) 667-7665
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Address: 13536 JARRETSVILLE PIKE, Phoenix, MD 21131
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Lothorian, LLC Phoenix
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Lothorian, LLC has a BuildZoom score of 103, which places them above 90% of 58,058 contractors in Maryland.
Activity
|
7 projects
|
2025 |
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Lothorian, LLC has worked on at least
9.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
3 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $6,000. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Construct a lap pool on site. this work is in conjunction with building permit com2024-02040. as per plans and as per code
Valuation:
N/A
Permit #:
BRCM-25-008092
Status:
complete
Fee:
$104
Permit Type:
Exterior work only
Building Type:
N/A
Replacement of existing interactive water fountain. project include demolition of existing water structure and filtration equipment new construction of an interactive water fountain underground surge tank and above ground filtration equipment enclosure. existing connections to electric fresh water storm and sanitary drainage are to be utilized. in-ground concrete construction of inter... see more
Valuation:
$528,000
Permit #:
POOL-23936-2021
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Scope of work: -------- pool ------- construct a koi pond in rear yard only lap pool on separate application brcm-25-008092. as per plans and as per code
Valuation:
N/A
Permit #:
BRCM-25-008095
Status:
complete
Fee:
$104
Permit Type:
Exterior work only
Building Type:
N/A
Demolish existing and construct swimming pool *pat02050712*
Valuation:
$550,000
Permit #:
B02420401
Status:
complete
Fee:
$4,340
Permit Type:
N/A
Building Type:
N/A
Install a prefabricated concrete spa in rear yard (dwgs attached). scope of work will include natural gas hook up to pool heater equipment plumbing & electrical for pool equipment
Valuation:
N/A
Permit #:
BRCM-25-014604
Status:
complete
Fee:
$299
Permit Type:
Exterior work only
Building Type:
N/A
Construct inground irregular shaped pool
Valuation:
$95,000
Permit #:
B02420453
Status:
canceled
Fee:
$655
Permit Type:
N/A
Building Type:
N/A
Replacement of existing interactive water fountain. project include demolition of existing water structure and filtration equipment new construction of an interactive water fountain underground surge tank and above ground filtration equipment enclosure. existing connections to electric fresh water storm and sanitary drainage are to be utilized. in-ground concrete construction of inter... see more
Valuation:
$528,000
Permit #:
POOL-23936-2021
Status:
issued
Fee:
N/A
Permit Type:
Commercial - reno...
Building Type:
N/A
Single family dwelling install (2) lengths of retaining wall 1 @ 66’ long & 1@ 52’ long. both walls to be 5’+/- high from finished grade maximum height. wall to be cmu block & brick façade construction on adequate footer per engineered construction dwgs.**guardrails are required around walkways
Valuation:
N/A
Permit #:
B22003404
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install 8 x 8 concrete spa and renovate existing 20 x 40 in ground pool to include surrounding patio coping plaster diving board pool equipment lighting filled by truck fence to code
Valuation:
N/A
Permit #:
B22003405
Status:
complete
Fee:
$275
Permit Type:
N/A
Building Type:
N/A
******* related permit: com2024-02040 plan 2024-1797 ********** scope of work: -------- grading --------- 24 deep ornamental lily pond. as per plan and code
Valuation:
N/A
Permit #:
BRCM-25-012933
Status:
triage
Fee:
N/A
Permit Type:
Exterior work only
Building Type:
N/A
Construct pool w auto cover
Valuation:
$175,000
Permit #:
B02436508
Status:
filed
Fee:
$2,320
Permit Type:
N/A
Building Type:
N/A
Construct inground pool
Valuation:
$200,000
Permit #:
B02415216
Status:
filed
Fee:
$3,332
Permit Type:
N/A
Building Type:
N/A
Demolish and rebuild in-ground pool 40x43
Valuation:
$125,000
Permit #:
PI-22-1933
Status:
issued
Fee:
$120
Permit Type:
N/A
Building Type:
N/A
Gas to inground pool - install new gas line fro fire pit replace existing line to house replace 400 000 btu pool heater - revised 2/27/2023 to addition gas line for fire bowl at 65 000 btu
Valuation:
N/A
Permit #:
GAR-22-0128
Status:
approved
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Const 40'x40 wedge shaped in ground concrete swimming pool w/7'd spa
Valuation:
$150,000
Permit #:
B02378290
Status:
issued
Fee:
$1,040
Permit Type:
Addition
Building Type:
Residential swimm...
Nov single family dwelling construct 18 x 40 in-ground concrete pool rectangle with 3 surrounding patio depth 3 - 10 fence to code (see cb191005)
Valuation:
N/A
Permit #:
B19004131
Status:
complete
Fee:
$275
Permit Type:
N/A
Building Type:
N/A
Addition - retaining wall
Valuation:
N/A
Permit #:
BLD20-0234
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Municipal pool & pool house
Valuation:
N/A
Permit #:
BLD19-0485
Status:
final
Fee:
N/A
Permit Type:
Other
Building Type:
N/A
Demolish existing pool
Valuation:
N/A
Permit #:
DEM19-0027
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Finish basement for rec room game room full bathroom (in-19-0209)
Valuation:
$18,294
Permit #:
BP-19-2349
Status:
issued
Fee:
$250
Permit Type:
N/A
Building Type:
N/A
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Lothorian, LLC License info
Verified License
| License # | 10595 |
| Status | Active |
| State | Maryland |
| Type | Home Improvement |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Lothorian, LLC at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PA156836 |
| Status | Active |
| State | Pennsylvania |
- BuildZoom has not verified this license since March, 2025.
Verify this license's status for Lothorian, LLC at the Pennsylvania Office of the Attorney General.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CON-4153 |
| Status | Inactive |
| City | Annapolis |
| Type | Contractor |
- According to the The City of Annapolis, MD, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Lothorian, LLC at the The City of Annapolis, MD.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
44
Permits
- Building permit records show that Lothorian, LLC has worked on 44 permitted projects.
Lothorian, LLC Employees
RT
Robert William Thompson
Owner