Builder Guide

ADU Builders in Citrus Heights, CA (2026)

What ADU builders cost in Citrus Heights, how to choose one, the questions to ask — plus free, no-obligation quotes from independent local contractors (verify license and insurance before hiring).

Build cost: $170,000-$400,000 Permit timeline: Not published by the city. State law requires a completeness notice within 15 business days and a decision within 60 days of a complete application where a home already exists, otherwise the application is deemed approved (Gov. Code §66317(a)(2)-(3)); §106.42.015.F binds the city to those timelines. Free quotes

An ADU builder in Citrus Heights is a licensed contractor who designs and constructs accessory dwelling units — detached backyard units, garage conversions, attached additions, and junior ADUs (JADUs). Because an ADU is a complete second dwelling, the builder coordinates foundation, framing, plumbing, electrical, and HVAC work and pulls it through Citrus Heights's permit process and utility connections. Not every general contractor has built one, so the right builder is one with ADU-specific experience in California.

What ADU Builders Cost in Citrus Heights [21][22][23][24]

Based on our Citrus Heights cost data, expect the following ranges from local ADU builders. Quotes for the same scope typically vary 20-40% between contractors, so getting at least three bids is the single best way to control cost.

New Detached ADU (all-in)$170,000-$400,000
Cost per Sq Ft$250-$500
Garage Conversion$90,000-$200,000
Prefab / Modular ADU (installed)$170,000-$340,000
City Permit & Plan ReviewValuation-based (Master Fee Schedule, February 1, 2026): a $200,000 ADU pays about $2,933 building permit plus 65% plan check ($1,906), 6% General Plan and 4% technology surcharges, a 3.25% zone check and $94 issuance, roughly $5,300 in all; get a quote from Building at (916) 727-4760.
Impact FeesState law bars impact fees on an ADU of 750 sq ft of interior livable space or less and a JADU of 500 sq ft or less (Gov. Code §66311.5(c)). The city's Impact Fee Schedule (January 1, 2026) marks smaller ADUs EXEMPT and charges an ADU of 750-1,200 sq ft $1,467 multimodal + $3,045 park + $887 fire facility = $5,399, half the single-family rate. Separately, San Juan USD school fees apply from 500 sq ft (916-971-7073) and sewer connection charges are set by SASD/SRCSD (916-876-6100), which state law lets them charge proportionately for a new detached unit but not for a conversion or JADU.

For a full line-item breakdown, see our Citrus Heights ADU cost guide. To confirm what you're allowed to build before you hire, review the Citrus Heights ADU rules (max detached size: Local option: 1,200 sq ft regardless of the primary home's size (§106.42.015.B.3.b), measured as interior livable space from the inside face of the exterior walls, excluding garages, porches and unfinished space (E.4). Above 800 sq ft the zone's lot coverage applies: 30% in RD-1 to RD-4, 50% in RD-5 to RD-15 (Table 2-4). State option: 800 sq ft (§106.42.015.C.1.a(3); Gov. Code §66323(a)(2)). No local standard may block an 800 sq ft unit with 4-ft side and rear setbacks (Gov. Code §66321(b)(3)).; owner-occupancy: Not required for an ADU. For a JADU, owner-occupancy (in either the JADU or the main home) is required only if the JADU shares a bathroom with the primary dwelling; a JADU with its own sanitation facilities, or one owned by a government agency, land trust or housing organization, is exempt (§106.42.015.D.2, tracking AB 1154 and Gov. Code §66333(b), effective January 1, 2026).).

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How to Vet an ADU Builder in Citrus Heights

  • License: Confirm a current contractor's license in California and that it's in good standing. Ask for the license number and verify it with the state board.
  • ADU-specific experience: Ask how many ADUs they've completed in or near Citrus Heights and request addresses or photos. ADU permitting and setbacks differ from a kitchen remodel.
  • Portfolio & references: Get references from recent ADU clients and, if possible, visit a finished unit.
  • Insurance: Verify general liability and workers' compensation coverage. Ask for a certificate of insurance.
  • Written, detailed bid: Insist on an itemized, fixed-price or clearly-scoped bid — not a verbal estimate. It should state whether permits (Valuation-based (Master Fee Schedule, February 1, 2026): a $200,000 ADU pays about $2,933 building permit plus 65% plan check ($1,906), 6% General Plan and 4% technology surcharges, a 3.25% zone check and $94 issuance, roughly $5,300 in all; get a quote from Building at (916) 727-4760.), plan check (Building Division plan check at 65% of the building permit fee, due at submittal; extra review cycles cost $177 each and outside plan-check consultants beyond the second cycle are billed at cost (Master Fee Schedule). The free permit-ready plans are already approved by the Building Division, so only the site plan and site-specific items (utilities, solar, easements) are reviewed. Fire sprinklers are not required unless the primary home has them (§106.42.015.E.5). Each ADU is also subject to the state solar requirement, which may be met on the main house.), and impact fees (State law bars impact fees on an ADU of 750 sq ft of interior livable space or less and a JADU of 500 sq ft or less (Gov. Code §66311.5(c)). The city's Impact Fee Schedule (January 1, 2026) marks smaller ADUs EXEMPT and charges an ADU of 750-1,200 sq ft $1,467 multimodal + $3,045 park + $887 fire facility = $5,399, half the single-family rate. Separately, San Juan USD school fees apply from 500 sq ft (916-971-7073) and sewer connection charges are set by SASD/SRCSD (916-876-6100), which state law lets them charge proportionately for a new detached unit but not for a conversion or JADU.) are included.
  • Permit handling: Confirm they manage Citrus Heights's permit process ("Ministerial building permit. §106.42.015.F (Ord. 2026-004) requires the city to process every ADU and JADU application ministerially within the timelines of Gov. Code §66310 et seq.; zoning compliance is checked inside the building-permit review (a 3.25% Planning zone-check fee), not through a separate hearing. Apply through the Citizen Access Portal. Applicants choose the local option (subsection B) or the state §66323 option (subsection C) on the application.", typically Not published by the city. State law requires a completeness notice within 15 business days and a decision within 60 days of a complete application where a home already exists, otherwise the application is deemed approved (Gov. Code §66317(a)(2)-(3)); §106.42.015.F binds the city to those timelines.) and who is responsible if revisions are required.
  • Payment schedule: Avoid large upfront payments. A reasonable schedule ties payments to completed milestones.

Questions to Ask Before You Hire

  • How many ADUs have you built in Citrus Heights in the last two years?
  • Is your bid fixed-price, and what would trigger a change order?
  • Are permits, plan check, and utility connection fees included?
  • What's a realistic timeline, including permit review (Not published by the city. State law requires a completeness notice within 15 business days and a decision within 60 days of a complete application where a home already exists, otherwise the application is deemed approved (Gov. Code §66317(a)(2)-(3)); §106.42.015.F binds the city to those timelines.) and construction?
  • Who is my point of contact and how are delays communicated?
  • What warranty do you provide on workmanship?
  • Can you share three recent California ADU client references?

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Frequently Asked Questions

How much do ADU builders charge in Citrus Heights?

ADU builders in Citrus Heights typically quote $170,000-$400,000 for a new detached unit, or about $250-$500 per square foot, including design, permitting, and construction. A garage conversion runs $90,000-$200,000 and a prefab/modular ADU averages $170,000-$340,000. Add city permit and plan-review fees (Valuation-based (Master Fee Schedule, February 1, 2026): a $200,000 ADU pays about $2,933 building permit plus 65% plan check ($1,906), 6% General Plan and 4% technology surcharges, a 3.25% zone check and $94 issuance, roughly $5,300 in all; get a quote from Building at (916) 727-4760.) plus impact fees of State law bars impact fees on an ADU of 750 sq ft of interior livable space or less and a JADU of 500 sq ft or less (Gov. Code §66311.5(c)). The city's Impact Fee Schedule (January 1, 2026) marks smaller ADUs EXEMPT and charges an ADU of 750-1,200 sq ft $1,467 multimodal + $3,045 park + $887 fire facility = $5,399, half the single-family rate. Separately, San Juan USD school fees apply from 500 sq ft (916-971-7073) and sewer connection charges are set by SASD/SRCSD (916-876-6100), which state law lets them charge proportionately for a new detached unit but not for a conversion or JADU.. Quotes for the same scope commonly vary 20-40% between builders, so collect at least three bids.

How do I find a good ADU builder in Citrus Heights?

Look for a licensed contractor with completed ADU projects in Citrus Heights specifically — ADUs involve local zoning, setback rules, and utility connections that general remodelers may not have handled. Verify the license, ask for an ADU-specific portfolio and references, confirm they carry liability and workers' comp insurance, and get a written fixed-price or detailed bid. Submit a request below and we'll forward it to local ADU builders serving Citrus Heights for free quotes.

Do ADU builders in Citrus Heights handle permits?

Most full-service ADU builders manage the permit process for you. In Citrus Heights the approval process is "Ministerial building permit. §106.42.015.F (Ord. 2026-004) requires the city to process every ADU and JADU application ministerially within the timelines of Gov. Code §66310 et seq.; zoning compliance is checked inside the building-permit review (a 3.25% Planning zone-check fee), not through a separate hearing. Apply through the Citizen Access Portal. Applicants choose the local option (subsection B) or the state §66323 option (subsection C) on the application.". Review time: not published by the city. State law requires a completeness notice within 15 business days and a decision within 60 days of a complete application where a home already exists, otherwise the application is deemed approved (Gov. Code §66317(a)(2)-(3)); §106.42.015.F binds the city to those timelines. Confirm in writing whether permit fees, plan check (Building Division plan check at 65% of the building permit fee, due at submittal; extra review cycles cost $177 each and outside plan-check consultants beyond the second cycle are billed at cost (Master Fee Schedule). The free permit-ready plans are already approved by the Building Division, so only the site plan and site-specific items (utilities, solar, easements) are reviewed. Fire sprinklers are not required unless the primary home has them (§106.42.015.E.5). Each ADU is also subject to the state solar requirement, which may be met on the main house.), and impact fees are included in the bid or billed separately.

How long does it take to build an ADU in Citrus Heights?

Plan for the permit review (Not published by the city. State law requires a completeness notice within 15 business days and a decision within 60 days of a complete application where a home already exists, otherwise the application is deemed approved (Gov. Code §66317(a)(2)-(3)); §106.42.015.F binds the city to those timelines. in Citrus Heights) plus construction. Most detached ADUs take 4-8 months of construction after permits are issued; garage conversions and prefab units are often faster. Ask each builder for a realistic schedule and what could delay it.

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More California ADU Rules

About this information: This page is an informational summary of publicly available regulations - it is not legal, financial, or professional advice, and it is not a substitute for confirming requirements with your local planning department. Rules change frequently; always verify current requirements before designing, budgeting, or building. Last verified: 2026-09-20. Contractors we introduce are independent businesses - verify license and insurance directly before hiring. Spotted an error? Tell us - we verify against primary sources and correct quickly.

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