Commercial Tenant Improvement Architect in Vallejo, CA
tenant improvement architect Vallejo CA commercial TI permit drawings retail buildout architect restaurant kitchen permit plans grease trap design ADA parking compliance mercantile occupancy permit drawings

Commercial Tenant Improvement Architect in Vallejo, CA — Sonoma Market Buildout

Permit-ready architectural, electrical, plumbing, and life safety drawings for a mercantile tenant improvement on Sonoma Blvd, Vallejo — designed by Unified Studio Architect.

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Parameters Matrix

Project Specifications Box

DetailInformation
LocationSonoma Blvd, Vallejo, California
CountySolano County
Project TypeCommercial Tenant Improvement — Retail Market with Food Service
ScopeAddition and installation of new commercial equipment and associated electrical, plumbing, and life safety systems
Occupancy TypeGroup M (Mercantile) — Retail Shop
Construction TypeType V-B
ZoningDMX — Downtown Mixed Use
Applicable Codes2022 California Building Code, California Plumbing Code, California Mechanical Code, California Energy Code (Title 24, Part 6), CALGreen, California Fire Code, California Electrical Code, Vallejo Municipal Code (Title 16)
Lot Area0.23 acres / 10,018.8 sq. ft.
Year Built1960
Occupancy Load13 occupants total
Case Narrative

Project Overview

This Vallejo, California tenant improvement project involved converting a mixed-use commercial space on Sonoma Blvd into a fully equipped retail market with food service operations. Located within the city's Downtown Mixed Use (DMX) zoning district, the 1960-era building required a coordinated permit package addressing architectural layout, commercial kitchen equipment, plumbing, electrical, and life safety systems under Group M (Mercantile) occupancy.
The primary design challenge was fitting a functional commercial kitchen — including a natural gas oven, refrigeration, a three-compartment sink, hand sink, and mop sink — into a compact retail footprint while meeting California Plumbing Code grease interceptor sizing requirements. Our team calculated fixture flow rates per code-required multiple-fixture factors, arriving at a 41.5 GPM demand and specifying a 50 GPM grease interceptor to handle kitchen wastewater discharge to the existing Vallejo sewer system.
Code compliance extended across multiple disciplines. The electrical plan was engineered to the 2022 California Electrical Code, providing GFCI-protected receptacles throughout food preparation and wet areas, code-required lighting intensity of 50 foot-candles in food prep zones, and a panel schedule sized for the connected load.
The life safety plan confirmed a single required exit met the maximum allowable travel distance under the 2022 California Building Code, Chapter 9, with exit signage, emergency lighting, and fire extinguisher placement coordinated across architectural and electrical sheets. Site plan coordination also confirmed one standard and one ADA van-accessible parking space with a compliant 1:12 ramp at the entrance.
The final deliverable was a complete, permit-ready tenant improvement drawing set — architectural floor plan, electrical plan, plumbing plan, and life safety plan — allowing this Sonoma Blvd retail market to proceed through the City of Vallejo's building permit process with a coordinated, code-compliant package across every trade.
Deliverables Register

What We Delivered

  • G01 Cover Sheet — project data, applicable codes, occupancy load calculations, and scope of work
  • G02 Site Plan — parking layout, ADA van parking, accessible ramp, and site context
  • A01 Floor Plan — retail, kitchen, reception, storage, and ADA bathroom layout with equipment schedule and interior elevations
  • E01 Electrical Plan — lighting, receptacle, and GFCI layout with electrical panel schedule and load calculations
  • P01 Plumbing Plan — domestic water supply plan, sewer plan, grease trap calculation, three-compartment sink detail, and floor cleanout detail
  • LS01 Life Safety Plan — egress path, exit signage, emergency lighting, fire extinguisher placement, and occupancy load calculations
  • SCHED Finish schedule for customer area, kitchen, prep/storage, ADA bathroom, and utility room
  • COORD Full coordination across architectural, electrical, plumbing, and life safety disciplines
Exterior storefront photo of Sonoma Market on Sonoma Blvd in Vallejo, CA Exterior storefront photo of Sonoma Market on Sonoma Blvd in Vallejo, CA
Floor plan layout of retail market, kitchen, and reception area, Vallejo CA Floor plan layout of retail market, kitchen, and reception area, Vallejo CA
Life safety plan showing egress path and exit signage, Vallejo commercial buildout Life safety plan showing egress path and exit signage, Vallejo commercial buildout
Structural & Architectural Parameters

Design & Code Compliance Section

California Building Code (CBC) Compliance

The tenant improvement was designed under the 2022 California Building Code, with occupancy classified as Group M (Mercantile) — Retail Shop, Construction Type V-B, and an allowable building height of 40 feet for the single-story structure.

Zoning Compliance

The property sits within Vallejo's Downtown Mixed Use (DMX) zoning district. Our team confirmed the retail-with-food-service use was consistent with DMX zoning standards and Vallejo Municipal Code Title 16 local amendments.

Means of Egress

The life safety plan confirmed compliance with one required exit, a minimum 32-inch clear exit door width, and a maximum exit access travel distance of 200 feet under CBC Chapter 10 — verified against an actual measured travel distance of 74 feet 9 inches to the nearest exit.

ADA & Parking Compliance

Per CBC Chapter 11B, the site provides one standard parking space and one ADA van-accessible parking space, along with a 3-foot-wide, 1:12 slope accessible ramp at the building entrance.

Plumbing & Grease Trap Design

Plumbing systems were designed to the 2022 California Plumbing Code, providing one lavatory, one water closet, a three-compartment sink, a hand sink, and a mop sink. Grease trap sizing followed code-required fixture flow calculations, totaling 41.5 GPM and resulting in a specified 50 GPM grease interceptor.

Electrical Code Compliance

The electrical design follows the 2022 California Electrical Code (Title 24, Part 3), with GFCI protection in kitchen and wet areas, code-required food-prep lighting intensity, properly sized branch circuits and feeders, and emergency/exit lighting connected per CEC Article 700.

Fire Protection & Life Safety

Four portable fire extinguishers were provided, exceeding the minimum of one required under CBC Chapter 9, with placement coordinated to remain within 75 feet of travel distance from all points per CBC 906.

Energy Efficiency

The building envelope and equipment were evaluated against California Energy Code (Title 24, Part 6) requirements, including window U-value and SHGC standards and California Climate Zone 3 design criteria.

Solano County Focus

Regional Expertise & Local Process Insights

Business owners searching for a tenant improvement architect in Vallejo need a design partner who can coordinate architectural, electrical, plumbing, and life safety systems into a single permit-ready package. Unified Studio Architect provides commercial TI permit drawings in Vallejo that satisfy both the City of Vallejo's building department and California's statewide commercial code requirements.
As a Vallejo commercial buildout architect, our experience extends across Solano County, including neighboring communities such as Benicia, American Canyon, and Fairfield. Each of these jurisdictions enforces the same California Building, Plumbing, and Electrical Codes, and our familiarity with Solano County permit review allows commercial tenants to move from lease signing to construction with fewer plan-check delays.
Whether the project is a Vallejo restaurant kitchen permit plan, a retail market buildout, or a full mercantile tenant improvement package, our drawing sets are built to satisfy local zoning departments, fire marshals, and California's statewide commercial building requirements — keeping Solano County business owners on schedule for opening day.
"Unified Studio Architect coordinated our entire market buildout — kitchen layout, electrical, plumbing, and life safety — into one clean permit set. The grease trap calculations and ADA parking details were handled exactly to code on the first submission."
— K. & K. Ingersoll, Sonoma Blvd, Vallejo, CA ★★★★★
Information Center

Frequently Asked Questions

Costs vary by square footage, occupancy classification, and number of disciplines required, but a coordinated architectural, electrical, plumbing, and life safety package for a small retail/food-service space is typically a fraction of new construction design costs.
Yes. Any commercial kitchen with sinks used for food preparation or dishwashing requires a properly sized grease interceptor calculated from fixture flow rates, sized to handle wastewater discharge before it reaches the public sewer system.
A retail market that includes food preparation and sales is typically classified as Group M (Mercantile) under the California Building Code, with kitchen areas subject to additional plumbing, electrical, and fire code requirements.
Tenant improvement permit timelines in Solano County jurisdictions like Vallejo generally range from several weeks to a few months, depending on plan-check workload, occupancy classification, and the number of disciplines involved.
Most commercial tenant improvements trigger accessibility requirements, including at least one ADA-compliant parking space and an accessible route to the entrance, even when off-street parking is not otherwise required by zoning.
A standard food-service setup typically requires a code-compliant three-compartment sink for dishwashing, a separate dedicated hand-washing sink for staff, and a utility or mop sink for facility maintenance.
A single exit is typically permitted for small mercantile spaces when the occupant load and travel distance remain within California Building Code limits — generally a maximum of 200 feet of exit access travel distance.
Yes. While our team has deep expertise in California commercial codes, we provide remote architectural, electrical, and plumbing drafting services to clients across the United States.
Professional Standards

Why Choose Unified Studio Architect

Permit-Ready Multi-Discipline Drawings

Architectural, electrical, plumbing, and life safety coordinated into one cohesive, comprehensive package.

Commercial Kitchen Expertise

Precise grease trap sizing, equipment layouts, and complete food-service mechanical/plumbing code compliance.

California Commercial Code Expertise

Deep familiarity with CBC, CPC, CMC, CEC, CALGreen, and local municipal structural amendments.

Mercantile & Restaurant Specialization

Focused experience with retail storefronts, markets, and fast-casual food-service tenant improvements.

Remote Drafting Across USA

Full-service architectural drafting and utility engineering coordination for clients nationwide.

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