Updated: May 05, 2026
Location and Projects
Address
3746 LA COLUSA DRIVE, San Marcos, CA, 92069
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Great Southwestern Ranch House Construction
Great Southwestern Ranch House, 3746 La Colusa Dr, San Marcos, CA (Employees: Douglas Gene Williams and Matthew John Shanahan) holds a General Building license and 2 other licenses according to the California license board.
Their BuildZoom score of 92 ranks in the top 32% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Great Southwestern Ranch House, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Great Southwestern Ranch House Services
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Great Southwestern Ranch House Contact Information
Phone Number: (619) 995-0018
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Address: 3746 LA COLUSA DRIVE, San Marcos, CA 92069
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Building Permits by Great Southwestern Ranch House
This is a sample of this contractor's permits. Click here to access their complete permit history.
New primary residential structure single family dwelling or mh - plan check-permit
2016-08-17
Cross street: morro hills foundation: slab description of work: 3007 sq ft 2 story single family dwelling w/ac fs and 324 sq ft trellis. with 200 amp subpanel from existing 400 amp meter(for existing barn) notice to permittee: temp power shall be inspected prior to framing inspection 2-26-2019 - permit renewed at 25%. must call for a valid inspection showing progress within 180 days t... see more
Valuation:
$417,832
Permit #:
PDS2016-RESPRI-000036
Status:
complete
Fee:
$15,986
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2001-03-02
Cross street: golf club tb: 1068 b2description of work: 947 s.f. single story single family dwelling addition w ac.~~plan change 28-mar-2001: applicant added 71 s.f. to permitted plan. needs review & approval from planner and structural. new school and fire letters given. quantities screen updated. bill time for all review at hourly rate (for planner and engineer) and for tech.ksg
Valuation:
$0
Permit #:
PDS2001-1004-20010131
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New residential detached accessory structure - plan check-permit
2013-12-23
Cross street: morro hills description of work: 752 shade structure addition to barn under constuction (see pds2013-resacc-000007)
Valuation:
$15,792
Permit #:
PDS2013-RESACC-000624
Status:
complete
Fee:
$519
Permit Type:
N/A
Building Type:
N/A
New primary residential structure single family dwelling or mh - plan check-permit
2006-12-14
Cross street: w.lilac foundation: slab description of work:2335 sf single family dwelling ac/fs; 1327 sf att'd garage 146 sf patio & porch. 200 amps. notice to permittee: temp power shall be inspected prior to framing inspection
Valuation:
$294,360
Permit #:
PDS2006-1003-20060629
Status:
complete
Fee:
$3,863
Permit Type:
N/A
Building Type:
N/A
New primary residential structure single family dwelling or mh - plan check-permit
2006-03-08
Cross street: w.lilac foundation: slab description of work:2335 sf single family dwelling ac/fs; 1327 sf att'd garage 146 sf patio & porch. 200 amps. notice to permittee: temp power shall be inspected prior to framing inspection
Valuation:
$294,360
Permit #:
PDS2006-1001-20060352
Status:
complete
Fee:
$12,224
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2006-05-16
Cross street:via dos valles description of work:remodel existing guest qtrs--39 lf of new interior partitions removing 58 sqft of windows 122 sqft of new windows misc electrical plumbing & mechanical
Valuation:
$5,069
Permit #:
PDS2006-1005-20060440
Status:
complete
Fee:
$273
Permit Type:
N/A
Building Type:
N/A
New primary residential structure single family dwelling or mh - plan check-permit
2002-04-16
Log in cross street: santa margaritadescription of work: 2475 sq ft single family dwelling with air conditioning fs and attached f fs garage 576 sq ft. temp power. 200 amp service
Valuation:
$0
Permit #:
PDS2002-1003-20020275
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New primary residential structure single family dwelling or mh - plan check-permit
2002-04-03
Cross street: santa margarita description of work: 2475 sq ft single family dwelling with air conditioning fs and attached f fs garage 576 sq ft. temp power. 200 amp service
Valuation:
$218,086
Permit #:
PDS2002-1001-20020433
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
1999-04-12
Cross street: calle de la paloma activity code: 42rp10/42r110 description of work: single family dwelling addition w/ac patio cover (hra) tb: 1027/h3
Valuation:
$44,171
Permit #:
PDS1999-1005-99001050
Status:
complete
Fee:
$793
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2006-03-17
Cross street: calle canonero description of work: 6 sinks 1 garage sink & misc electrical fixtures to final main single family dwelling. - 1003-20030643
Valuation:
N/A
Permit #:
PDS2006-1005-20060252
Status:
triage
Fee:
$228
Permit Type:
N/A
Building Type:
N/A
New primary residential structure single family dwelling or mh - plan check-permit
2000-02-25
Cross street:e. alvarado description of work:1 story single family dwelling air conditioning attached garage (f)/porch (hra)/200 amps/temp power
Valuation:
$198,601
Permit #:
PDS2000-1001-20000298
Status:
triage
Fee:
$755
Permit Type:
N/A
Building Type:
N/A
New primary residential structure single family dwelling or mh - plan check-permit
2000-05-01
Cross street:e. alvarado description of work:1 story single family dwelling air conditioning attached garage (f)/porch (hra)/200 amps/temp power
Valuation:
$198,601
Permit #:
PDS2000-1003-20000419
Status:
complete
Fee:
$2,095
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2000-11-15
Cross street: golf club tb: 1068 b2 description of work: 947 s.f. single story single family dwelling addition w air conditioning
Valuation:
$76,612
Permit #:
PDS2000-1001-20001688
Status:
complete
Fee:
$339
Permit Type:
N/A
Building Type:
N/A
New primary residential structure single family dwelling or mh - plan check-permit
1996-11-04
Cross street: vista del mardescription of work: sfd/gar/air/tmp pwr 1/23/97 owner added 125 sq ft at mst bathroom, solarium
Valuation:
$0
Permit #:
PDS1996-C-96040321
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New primary residential structure single family dwelling or mh - plan check-permit
1996-06-19
Cross street: vista del mardescription of work: sfd/gar/air/tmp pwr 1/23/97 owner added 125 sq ft at mst bathroom, solarium
Valuation:
$0
Permit #:
PDS1996-A-9600661999
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Gas leak repair
Valuation:
N/A
Permit #:
BLDG12-1008
Status:
final
Fee:
$442
Permit Type:
Simple
Building Type:
N/A
New primary residential structure single family dwelling or mh - plan check-permit
1991-07-02
Cross street: couser canyon rddescription of work: sfd/gar/patio/temp power*******air conditionedalso apn#128-091-17
Valuation:
$0
Permit #:
PDS1991-C-91030611
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
1991-01-17
Cross street: forte description of work: single family dwelling remodel
Valuation:
$2,710
Permit #:
PDS1991-C-9100258999
Status:
complete
Fee:
$35
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
1991-01-17
Cross street: forte description of work: single family dwelling remodel
Valuation:
$2,710
Permit #:
PDS1991-C-91002581
Status:
complete
Fee:
$106
Permit Type:
N/A
Building Type:
N/A
New primary residential structure single family dwelling or mh - plan check-permit
1996-06-07
Cross street: gumtree description of work: 2nd dwelling unit
Valuation:
$78,393
Permit #:
PDS1996-C-96019701
Status:
complete
Fee:
$1,816
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Great Southwestern Ranch House License info
Verified License
| License # | 419143 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Great Southwestern Ranch House at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 643590 |
| Status | Inactive |
| City | Oceanside |
| Type | Contractor |
| Business Type | Corporation |
- According to the City of Oceanside, CA, 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 Great Southwestern Ranch House at the City of Oceanside, CA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 643590 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- According to the California Contractors State License Board, 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 Great Southwestern Ranch House at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
13
Permits
- Building permit records show that Great Southwestern Ranch House has worked on 13 permitted projects.
Great Southwestern Ranch House Employees
DW
Douglas Gene Williams
Officer
MS
Matthew John Shanahan
Rmo / Ceo / Pres