CONTRACTORDAVE | PROPERTY DEVELOPMENT & CONSTRUCTION

Executive Capability Profile

California manufactured-home preconstruction, permitting, foundations, installation and completion

Northgate Construction Services, Inc. | Established 1995

POSITIONING Northgate connects the home, the property, the permit path, the foundation, the delivery plan, the field trades and the final finish into one workable construction process.

Who Northgate Is

David C. Bordwine - known professionally as ContractorDave - is the CEO and qualifying General Contractor of Northgate Construction Services, Inc., and a principal of USBuiltHomes. He brings more than 30 years of construction, plumbing, underground, operations, project-management, manufactured-home sales and factory-built-housing experience.

Dave holds California B General Building, C-47 Manufactured Homes and C-36 Plumbing classifications under CSLB #716418. That combination is especially useful on manufactured-home and HUD ADU projects because the home, foundation, utilities, delivery path and surrounding parcel work must function as one coordinated project, even when several designers, agencies, contractors and suppliers are involved.

What Makes Dave Different

· Sales-to-installation knowledge: Dave understands the customer, model and factory decisions that must be settled before a home can become a workable construction project.

· Manufactured-home technical knowledge: Chassis and foundation interfaces, delivery and set, Title 25 installation requirements, factory documents, inspection sequencing and closeout.

· Licensed field capability: B, C-47 and C-36 experience covering foundations, home installation, plumbing, underground interfaces and construction management.

· Operating discipline: Detailed scopes, assumptions, exclusions, allowances, document control, written handoffs and early identification of conflicts.

SCOPE QUALIFIER This profile describes Northgate's overall experience and available services. The exact scope, responsibilities, exclusions, compensation and handoffs are defined separately for each project in writing.

Where Northgate Creates the Most Value

Northgate's value does not begin when the manufactured home reaches the property. It begins before the home is ordered, before the site plan is locked, before utilities are finalized and before the owner is given a construction number or schedule.

That is where product knowledge, site-readiness judgment, permitting experience, foundation planning, trade interfaces and installation sequencing can prevent expensive problems. Northgate can support a project from early preconstruction through final inspection, or take on a narrower portion when responsibilities are split among the developer, owner, dealer and other contractors.

Manufactured-Home Sales Knowledge - Not Just Installation

Through USBuiltHomes, Dave has direct experience educating buyers and presenting manufactured homes. That sales-side knowledge helps Dave recognize model, factory-option, property and budget questions that must be answered before a customer commitment becomes an executable field project.

This is especially important when factory floor plans, order documents, site plans, finish selections and outside dimensions do not line up. Northgate knows how to separate what is confirmed from what must still be verified by the dealer, factory, designer, agency, engineer or owner.

City and County Permitting, Inspectors and the Approval Path

Dave has extensive working familiarity with California HCD Title 25, manufactured-home installation requirements, foundation documents, city and county permitting and inspection procedures. He can organize questions, identify missing information, coordinate plan-review corrections and inspections, and keep the responsibilities of the factory, dealer, installer, engineer, designer, agency and site contractors separated.

Decades of working directly with building officials and inspectors have also provided what Dave jokingly calls his "informal inspector training" - practical knowledge of what reviewers and field inspectors need to see, how to present the controlling documents and how to address questions without blurring professional or agency authority.

Plumbing, Underground and Site Interfaces

Dave's C-36 Plumbing license and underground experience help Northgate understand water, sewer, gas, septic, electrical-service and trench interfaces. Northgate may perform, manage or simply coordinate the handoff around these scopes, depending on the written project agreement.

PRACTICAL ADVANTAGE Northgate understands site development well enough to define what a site-ready handoff must include, even when the developer or another contractor retains the actual grading, septic and utility work.

Resourcefulness in Practice

Dave's strength is not one isolated specialty. It is the ability to combine product knowledge, code familiarity, licensed trade capability, foundation experience, agency communication and field judgment when the project does not fit neatly into a standard installation scope.

Fresno THOW Permitting and Installation Milestones

Dave prepared and participated in a City of Fresno working session on adapting established California HCD and Title 25 permitting and inspection procedures to the City's process for Tiny Homes on Wheels. He presented permit applications, plot plans, state-approved plans, installer responsibilities and practical inspection checkpoints.

Northgate then served as installing contractor for the first THOW installed in the City of Fresno and later the first THOW installed as an ADU in Fresno County. These milestones gave Dave direct experience taking a new housing type through local review, site coordination, installation and inspection.

Foundation-System Development and Testing

Beginning in the early 2000s, Dave contributed contractor-side field development to Central Piers foundation systems, including component refinement, fastening and installation details. He also performed monitored lateral and vertical testing of pier and foundation assemblies, connecting engineered concepts to actual chassis conditions and repeatable field installation.

Nearly 25 Years of Engineering Collaboration

For nearly 25 years, Dave has worked with Rock Solid Engineering on manufactured-housing foundation and anchoring systems, difficult soils, floodplain conditions and project-specific foundation remedies. Their collaboration has included Central Piers foundation work, including PowerFrame and Anchor Brace systems, with Dave contributing contractor-side field conditions, installation feedback, component refinement and monitored testing.

Rock Solid Engineering's work includes geotechnical and soils review, flood-zone analysis, foundation engineering, soil-remediation guidance, jurisdictional consultation and expert-witness assignments throughout California. When a project requires engineering judgment beyond a standard plan, the long working relationship allows the field problem, chassis conditions, agency concern and proposed remedy to be communicated clearly without confusing the contractor's role with the engineer's authority.

One Case Example: Watsonville Foundation Rescue

The Watsonville project is one example of Northgate working with a longtime engineering partner to solve difficult foundation, soils and jurisdictional problems. It shows how Northgate's field experience and professional engineering expertise can come together when a standard foundation plan is not enough.

In Watsonville, a double-wide manufactured home had been installed without permits and the County red-tagged the work after serious soil and foundation problems were identified. Removing and disassembling the completed home would have created major cost and disruption.

A project-specific engineered remedy allowed the home to remain assembled. Northgate lifted the double-wide approximately four feet above its existing support system, excavated foundation trenches beneath the raised home, installed reinforcing steel and pumped approximately 18 cubic yards of concrete into the trenches. The engineered field solution satisfied the jurisdictional foundation requirements and allowed the project to be completed.

Contractor-Side Guidance and Agency Problem Solving

Dave has worked through nonstandard manufactured-home and tiny-home submittal questions with California jurisdictions, inspectors, engineers and industry leaders. His role is not to replace the engineer or authority having jurisdiction. It is to identify the real field question, gather the correct documents, explain the interfaces and move the issue toward a supportable answer.

Document Reconciliation

· Control the current documents: Identify the controlling site plan, home plan, factory order, foundation information and owner direction.

· Find conflicts early: Compare model numbers, drawing numbers, dimensions, factory options, finish locations and site assumptions before pricing or mobilization.

· Assign each answer: Direct unresolved questions to the party that actually controls the information - factory, dealer, designer, engineer, agency, owner or contractor.

· Record the decision: Maintain one written decision and responsibility record so an outdated drawing or verbal assumption does not control field work.

WHAT THIS PROVES Northgate is not limited to repeating a standard installation list. Dave can organize a complicated project, expose the unknowns and build a scope that can actually be priced and constructed.

Current National Code and Standards Involvement

Dave authored the Alternative Foundation Systems material published by the International Code Council in The Tiny House: Building It Right. That work translated real foundation and installation experience into practical industry guidance.

In 2026, Dave was invited to participate in the ICC/THIA Standard 1215 development process, contributing field-driven foundation and chassis input.

Dave participates as an interested party and WG2/WG3 contributor. He is not presented as a voting committee appointee or as the engineer of record. His contribution is field perspective: how foundations, chassis interfaces, home placement, installation sequence, manufacturer information and approval conditions come together on an actual property.

WHY THIS MATTERS Dave is not only applying existing requirements. His published work and current participation give him direct exposure to technical questions the industry is working to clarify for future factory-built and tiny-house standards.

Industry Network, Training and Technical Resources

Northgate's capabilities are reinforced by professional relationships developed through decades of manufactured housing, foundations, plumbing, underground construction, code discussions and California field work.

· Manufactured-housing foundation, soils and geotechnical engineering: Nearly 25 years working with Rock Solid Engineering on Central Piers systems, manufactured-home foundations, anchoring, difficult soils, floodplain conditions, jurisdictional consultation and project-specific remedies.

· California and Arizona engineering network: Dave works with engineers who focus specifically on manufactured-home foundations, local code questions, foundation adaptation, agency response and project-specific jurisdictional problem solving.

· Tiny-home policy and California code knowledge: Direct industry relationships that provide insight into California jurisdictional questions, ordinances, ADU acceptance and policy development.

· National standards and technical development: Ongoing participation with standards leaders and structural engineers addressing the relationship among written standards, engineered details, manufacturer documents and field installation.

· Broader project network: Relationships with manufacturers, dealers, transporters, crane providers, foundation suppliers, plan designers, specialty contractors and local trades.

· Continuing education: Ongoing review of ICC/THIA sessions, foundation and chassis documents, manufacturer information, code discussions, agency feedback and field experience.

PROFESSIONAL RESPONSIBILITY Northgate does not pretend to possess every specialty in-house. Dave knows which questions to ask, which disciplines must be involved and when engineering, factory confirmation or agency direction is required.

Selected Professional Credentials

· California contractor license #716418: B General Building, C-47 Manufactured Homes and C-36 Plumbing.

· CEO and qualifying General Contractor, Northgate Construction Services, Inc.; business established in 1995 and incorporated in California in 2017.

· Principal, USBuiltHomes: manufactured-home buyer education, product presentation, site-feasibility guidance and sales-to-installation coordination.

· ICC-published author/contributor: Alternative Foundation Systems material in The Tiny House: Building It Right.

· 2026 ICC/THIA Standard 1215 interested party and WG2/WG3 contributor providing field input on foundations, chassis interfaces and installation conditions.

· Manufactured-home and HUD ADU specialist: preconstruction, permitting, foundation, delivery, installation, utility-interface, inspection and closeout experience.

Development and Execution Capabilities

The services below represent Northgate's available capabilities. A project may use the complete operating path or only selected services. Every assignment should identify the controlling documents, decision authority, written scope, exclusions, compensation and handoffs before work begins.

Capability

What Northgate Brings

Feasibility and product fit

Relate the proposed home model to the parcel, access, utility demands, foundation assumptions and project objectives; identify missing decisions and items requiring site, factory, agency or engineering verification.

Document control

Establish the current site plan, home plans, factory orders, foundation information and owner direction; maintain one decision list so outdated documents do not control the work.

Scope and budget development

Create work breakdowns, responsibility matrices, quantities, allowances, exclusions, pricing checkpoints, schedule assumptions and release requirements.

Preconstruction coordination

Gather controlling information, assign unanswered questions, coordinate project-specific technical resources and develop a scope that can be priced and contracted.

Engineering coordination and jurisdictional problem solving

Work with manufactured-home foundation engineers throughout California and Arizona; match each issue to the proper specialty; and organize local jurisdiction, foundation, soils, floodplain, plan-acceptance and project-specific questions for engineering or agency resolution.

City and county permitting and inspections

Prepare and coordinate submittal information with city, county and HCD authorities as applicable; track plan-review corrections, inspection scheduling and closeout; and keep responsibility separated among the owner, agency, factory, dealer, designers, engineers, installer and site trades.

Site-development interfaces

Define site-readiness requirements and coordinate the home-installation interface with grading, access, pads, foundations, water, sewer or septic, electrical service, trenches and delivery staging.

Foundation and home installation

Plan the applicable foundation; perform or manage set and level, section joining, anchorage, marriage-line and transport close-up, factory crossovers, skirting, landings, HVAC coordination and final home connections as contracted.

Delivery and completion

Confirm written site readiness; coordinate transporter, crane or toter, staging and set-day decisions; track punch work, correction responsibility, documentation, walkthrough and closeout.

Project management

Manage the contracted construction sequence, schedules, trade interfaces, inspections, changes, owner communication and closeout from the defined handoff through completion.

Foundation, Installation and Field Systems

· Foundation knowledge: Field experience with PowerFrame engineered systems, Anchor Brace tie-down systems, conventional pier-and-pad applications where allowed, project-specific engineering and manufacturer installation information.

· Set, crane and rigging management: Site release, transporter handoff, crane or toter planning, lift-day sequencing, equipment access and setup, qualified rigging coordination, spotting, blocking, leveling, section alignment, marriage-line fastening, anchorage and close-up.

· Completion work: Factory crossovers, skirting, exterior equipment coordination, utility tie-ins, landings, inspections, punch separation and owner turnover when included.

· Inspection readiness and coordination: Organize the applicable HCD, HUD, city, county, manufacturer, foundation and site information; anticipate checkpoints, coordinate inspections and correction responses, and explain the interface among factory work, installation work and local site requirements.

· Finish-quality coordination: Define factory versus field finish responsibilities and, when selected, develop upgraded caulking, paint, flooring and completion scopes that move the home beyond a standard factory finish.

FIELD-CONTROL PRINCIPLE A home should not be released merely because a delivery date is available. The site, foundation, access, equipment, inspections, responsible trades and decision authority must be ready together before mobilization.

How Northgate Operates

· Separate confirmed information from assumptions, allowances, site-verification items and engineering-dependent decisions.

· Use one current document set, one decision record and one written division of responsibilities.

· Raise conflicts early, present practical choices and document the decision before it becomes field rework.

· Use qualified engineers, designers, trades and suppliers when the work falls outside Northgate's direct scope or authority.

· Release homes and crews only after the agreed site-ready conditions and required information are confirmed.

· Price preconstruction, permitting, project management, construction and installation according to the actual assignment rather than hiding those services inside an incomplete installation number.

Closing Statement

Northgate brings the part of a manufactured-housing platform that is often missing: a California manufactured-home contractor, experienced home seller, field operator and customer-facing problem solver who understands Title 25, factory documents, foundations, underground interfaces, inspectors and the path from the first project conversation to a completed HUD home.

The objective is simple: identify the real project, define responsibilities, resolve the unknowns, create an accurate scope and then execute the contracted work without letting conflicting documents or unspoken assumptions become field problems.

THE RESULT A repeatable process that can explain the home, control the documents, coordinate the interfaces, manage the installation and close the project out correctly.

Verification and Contact

Item

Information

California contractor license

CSLB #716418 - B General Building, C-47 Manufactured Homes and C-36 Plumbing

Company

Northgate Construction Services, Inc. | Established 1995

Manufactured-home resource

USBuiltHomes.com

Professional website

ContractorDave.com

Direct contact

David C. Bordwine | (559) 999-4555 | dave@contractordave.com

ICC publication

The Tiny House: Building It Right - Alternative Foundation Systems contributor