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Expert Landscape Architecture & Development Services
T H Norton Landscape Architecture was founded on the principle that every project, regardless of scale or budget, can benefit from good design. Our team approaches each opportunity with decades of combined experience in planning, landscape architecture, and construction administration. We specialize in creating thriving spaces where people live, work, play, and connect, serving developers and municipalities across California, Florida, Idaho, Oregon, and Washington. Our services span land use planning, site feasibility studies, streetscape design, and irrigation design compliant with California's Model Water Efficient Landscape Ordinance.

We maintain a proven track record of guiding projects from initial concept through entitlements, site development, and construction phase coordination. Our commitment to exceptional design extends to residential communities, retail developments, parks, marinas, and public infrastructure projects. We work closely with stakeholders to ensure every project meets functional requirements while maintaining aesthetic integrity. Our expertise in jurisdictional permitting and construction administration helps streamline complex development processes for clients nationwide.
Services
Landscape Architecture Land Development Irrigation Design Construction Administration Residential Developments Public Infrastructure Site Feasibility Studies Water-Resilient Landscaping
Highlights and features
  • We offer 25+ years of irrigation design expertise with MWELO compliance
  • Our team has proven experience in land development entitlements
  • We provide full-service planning from concept to construction
  • We serve clients across five western U.S. states
  • Our approach combines third-generation contracting knowledge with modern design
Services
Landscape Architecture
Our landscape architecture services create functional, aesthetically pleasing environments for residential, commercial, and public spaces. We develop comprehensive site plans that integrate circulation, lighting, and planting design while meeting regulatory requirements. Our team specializes in creating spaces that enhance property value and user experience through thoughtful design solutions.
Land Development
We guide clients through the complete land development process from initial feasibility studies to final entitlements. Our services include master planning, zoning analysis, and jurisdictional permitting assistance. We help developers navigate complex regulatory frameworks to transform raw land into approved, buildable sites while maintaining environmental compliance.
Irrigation Design
With over 25 years of specialized experience, our irrigation design team creates efficient water management systems that comply with California's Model Water Efficient Landscape Ordinance. We develop customized irrigation plans that balance water conservation requirements with landscape maintenance needs for both residential and commercial properties.
Construction Administration
Our construction administration services ensure project designs translate successfully into built environments. We provide submittal reviews, permit coordination, and change order management throughout the construction phase. Our team acts as client representatives to maintain design integrity while addressing field conditions and contractor coordination.
Residential Developments
We specialize in designing residential communities that balance livability with market demands. Our services cover single-family, multi-family, and mixed-use developments including site layout, circulation planning, and recreational space design. We create environments that enhance resident quality of life while meeting municipal requirements and developer objectives.
Questions
What types of projects does THN handle?
We work on residential developments, commercial sites, public parks, marinas, and infrastructure projects across five western U.S. states.
Do you handle projects outside California?
Yes, we serve clients in Florida, Idaho, Oregon, and Washington in addition to our California offices in San Francisco and Orange County.
What irrigation design expertise do you offer?
Our team has 25+ years of experience creating MWELO-compliant irrigation systems that balance water efficiency with landscape maintenance needs.
How do you assist with development entitlements?
We provide complete entitlement support including rezoning, variances, and jurisdictional permitting to transform land into approved development sites.
What construction phase services do you provide?
We offer submittal reviews, permit coordination, change order management, and field condition assessments during construction.
How can I schedule a consultation?
Contact us at (925) 822-3085 or through our website to discuss your project and schedule an initial consultation.