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In-House Design and Regulatory Mastery. Led by a civil engineering design specialist, we provide comprehensive, executable drafting and design services. We eliminate costly conflicts between plans and constructability, ensuring immediate regulatory approval and seamless transition to the build phase.
Strategic Land Development Counsel and Coordination. We transform raw acreage into profitable or generational assets. Our design expertise allows us to implement creative and technical navigation using current California housing laws (like SB9/SB10) to maximize density or secure pathways for family investment projects.
Advanced Land Segmentation Strategies for Density Maximization. Our design team leverages a deep, current understanding of legislation (SB9, SB10) and innovative 'soft plan' concepts to unlock hidden value. We provide the expert analysis and design management required to achieve the highest allowable density and project returns.
Streamlined Regulatory Navigation. Permitting delays are profit killers. Our in-house permit specialist acts as your dedicated liaison with municipal planning and building departments, proactively addressing plan check comments, managing submittals, and fast-tracking approvals using plans we know are executable.
Design-Driven Regulatory Compliance: Complete Resolution. We resolve violations by providing the necessary drafting, design, and full permit processing and coordination to bring properties into compliance. Our specialty is creating executable 'as-built' plans that secure retroactive permits and restore property value.
Expert Coordination for Flawless Design Basis. Accurate field data is non-negotiable. We advise on and coordinate the efforts of licensed professionals for all critical pre-design work, including boundary surveys, easements, access records, and precise site measurements, ensuring our designs and those of our partners are based on reliable data.

starting with site work and utilities installation we add value to your property by increasing square footage or building from the ground up.

Unassailable Technical Authority in Construction Litigation. As a licensed general contractor, our testimony provides clear, compelling, and unbiased technical evidence based on real-world execution, translating complex codes and construction standards into actionable facts for legal teams.

Client-Side Representation for Project Excellence. Serving as your trusted representative, our licensed contractor provides comprehensive oversight from pre-construction through punch list. Our counsel ensures contractual integrity, quality control, cost management, and schedule adherence, protecting your investment.

Ensuring Workmanship Meets Code and Best Practices. Don't rely solely on municipal inspections. Our licensed contractor conducts detailed, multi-phase quality assurance inspections, verifying the work adheres to building codes, manufacturer specifications, and the highest industry standards.

There are a lot of companies out there that specialize in a single aspect of what we do but none that compare to the service we offer which is ease of mind in knowing your home will be respected and put back together right. If it's broken or needs updating we will bring it back to life whether that means making the property market ready or simply more enjoyable to live in.
Our team offers comprehensive expert witness and litigation consulting services, built upon a proven track record of over two decades in home building. As licensed contractors, we offer unparalleled insight into construction methods, quality control, and project management. We provide a rigorous review of contracts, plans, and project deficiencies, delivering objective reports and compelling testimony that can stand up to scrutiny in legal disputes. Whether for attorneys of the court or private matters, our goal is to provide the decisive, evidence-based support you need to achieve a favorable outcome.

From dream to completion our services include design, and building for any custom project you may have. We love outdoor living projects like BBQ Islands, Decks, and Patio Covers.

light commercial, retail space, doctors offices, and store fronts deserve a modern update as well. Moving/ rearranging walls can really open up your space and make the business more comfortable for customers. Plumbing, electrical, and HVAC changes? no problem we've got you covered.

JMJ Construction has recently become an exclusive dealer of Capital Steel. We can now provide a total cost comparison for a metal building vs traditional building types. We design, permit, and install your customized metal building so there is no running around or hassle to figure out and it comes with a 50yr warranty to top it off

Managing a portfolio of properties is demanding enough without the added stress of construction and maintenance issues. Our Property Management Fleet Services are designed to seamlessly integrate with your operations, taking the entire construction and maintenance burden completely off your hands.
When a property owner calls with a repair or construction-related issue, simply forward the complaint to us—we'll handle the rest. Our expert team will identify the scope of work, draft a comprehensive work order, and manage the entire bidding process through our vast network of pre-vetted contractors and subcontractors.
Our decades of industry experience allow us to craft highly detailed work orders and request for proposals (RFPs) that ensure clear expectations and fair bids. We provide expert oversight and management of all work performed, documenting and transparently comparing every aspect from price and quality to warranty.
With us as your dedicated construction partner, you eliminate the need to task your agents with duties outside their expertise, saving you time and resources. This allows you and your team to focus on what you do best—managing properties and maintaining strong client relationships—without ever missing a beat.

The precision of your calculations relies on accurate data. As experienced building contractors, we understand that an engineer's time is best spent on analysis and design, not on the time-consuming and often complex task of data collection on-site. We bridge the gap between practical field conditions and the precise data you require.
Our team brings a deep, hands-on understanding of structural dynamics and on-site realities, enabling us to anticipate and gather the exact variables necessary for your calculations. We are not engineers, but we are experts in the practical application of design, ensuring the data we collect is complete, accurate, and ready for your use.
Our Field Verification Packages are designed to be a seamless extension of your team, providing all the information you need to proceed with confidence.
By trusting us with your field verification needs, you can save significant time and resources, ensuring your projects move forward efficiently and with the most accurate data available.
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