Truckee — Development Standards

Last reviewed: July 3, 2026

Overview

This page summarizes the Town of Truckee’s zoning development standards (setbacks, height, lot/site coverage, density, and FAR) as written in the Truckee Development Code (Title 18). It focuses on the district-level dimensional and development rules you will need to evaluate a project — and where to look in the Code for the controlling text. For related procedural and design topics see the Truckee pages on setbacks/development standards, parking, design review, overlay districts, historic preservation, signage, nonconforming uses, variances and exceptions, landscaping and screening, and ADUs. Building-code technical details are governed by the California Building Standards Code and are out of scope here.

Note: This page synthesizes Title 18 (the Development Code). Citations point to the controlling § numbers in the Code; the underlying code excerpts used here come from the Town’s Development Code document. See Source References for exact § pointers and the file preview citations.

How to read Truckee’s development standards (quick)

• Dimensional standards for multiple zoning categories are organized in tables under each zoning article (for example, residential standards appear in the Residential District General Development Standards table). See § 18.08.040 for the residential table.
• Setback measurement rules, allowed projections, and exceptions are handled in the general site-planning rules at § 18.30.120.
• Height measurement and measurement exceptions are in § 18.30.090; many districts use the common 35 ft / 3‑story cap unless a different district standard applies.
• ADU-specific deviations (reduced side/rear setbacks, height allowances up to 18–20 ft) are in § 18.58.025.

District-by-district breakdown (decision-focused)

Below are the primary district groups used in Truckee’s Development Code with the purpose, typical uses (where the Code excerpt provides them), and the key dimensional standards you will need to check. All numeric items and district names are bolded. Where the Code excerpt did not list uses or an exact numeric for an item, I note that and tell you what to verify.

Notes on reading: many district tables are titled “General Development Standards” and are found in the Article for that district type (residential, mixed-use, commercial, special purpose). The controlling tables and subsections are cited at the end of each district subsection.

Residential districts — overview (RR, RL, RM, RH, DRL, DRM, DRH)

Purpose & where used: residential zones for rural-to-urban intensity housing. See the Residential District General Development Standards table in § 18.08.040.

Typical permitted uses: The Code organizes allowed uses by district elsewhere; the table in § 18.08.040 focuses on dimensional rules. Permitted use lists are not included in the development-standards excerpts retrieved here. Verify permitted uses with the district use table in the Code. Not found in retrieved materials.

Key dimensional standards (summary):

• Front setback: generally 20 ft (varies; small-lot and downtown residential exceptions exist) — see the specific row for each district in § 18.08.040.
• Side setbacks: typical 10 ft per side in many single‑family districts; 5 ft side in small‑lot districts (DR*), see table.
• Rear setback: commonly 20 ft (some districts list 25 ft).
• Height: 35 ft or 3 stories, whichever is less (districts may reference exceptions in § 18.30.090).
• Site coverage / Lot coverage: ranges by district: 40–70% depending on district and lot size; small-lot DR districts can allow 70% maximum coverage. See § 18.08.040.
• FAR: Some residential districts (e.g., parcels adjacent to Donner Lake) have a 0.50 maximum FAR; other districts reference “no maximum FAR” or specific figures in the table. See § 18.08.040.
• Density: default single‑family is 1 unit per lot, with ADU and JADU allowances per § 18.58.025. Multi‑family districts show density ranges (RM/RH). See § 18.08.040 and § 18.58.025.

Where it applies: Most residential neighborhoods — always verify the specific parcel district on the Town’s zoning map and cross‑check the exact row in § 18.08.040.

Downtown / Mixed‑use districts — CMU, NMU, DMU

Purpose & where used: allow compact commercial/residential combinations and higher intensity in identified mixed-use areas. See the Mixed Use District General Development Standards in § 18.14.040.

Typical permitted uses: Mixed commercial and residential uses in the Mixed Use article. Specific use tables are in the Code but were not included in the extracted development‑standards snippet. Verify permitted ground-floor prohibitions in the downtown core (Code references). Not found in retrieved materials.

Key dimensional standards (summary):

• Setbacks: many mixed‑use zones have no required setbacks (edge-of-sidewalk or none), or minimal setbacks — check the district row in § 18.14.040.
• Height: 50 ft or 3 stories in higher‑intensity mixed‑use districts (e.g., CMU, DMU); some NMU areas limited to 35 ft / 3 stories.
• FAR: CMU has 1.0 FAR max, NMU 0.6 FAR, DMU may have no maximum FAR in the table.
• Site coverage: varies (e.g., 70% for CMU). See § 18.14.040.

Where it applies: downtown/mixed‑use character areas; check the zoning map and the Mixed Use table in § 18.14.040.

Commercial & Manufacturing districts — DC, DM

Purpose & where used: downtown commercial and manufacturing/commercial transitional areas. See Commercial and Manufacturing District General Development Standards at § 18.12.050.

Typical permitted uses: commercial, retail, and some manufacturing/industrial uses depending on district. Confirm permitted uses in the district use tables (not included in these excerpts). Not found in retrieved materials.

Key dimensional standards (summary):

• Front/Edge setback: often edge of existing/future sidewalk (i.e., zero front setback) in Downtown DC. DM lists 25 ft front in the table.
• Height: 50 ft or 3 stories in DC and DM (table).
• FAR: DC: no maximum FAR requirement in the table; DM: 0.25 FAR shown.
• Site coverage: ranges up to 75% (DM) or “no maximum” (DC).

Where it applies: commercial corridors and downtown core; verify the parcel’s district and read § 18.12.050 for the controlling table.

Special Purpose districts — OS, RC, REC, PF, PC

Purpose & where used: open space, resource conservation, recreation, public facilities, and planned community areas. See the Special Purpose District General Development Standards in § 18.16.040 and district subsections (e.g., § 18.16.050 for RC).

Key dimensional standards (summary):

• Front/side/rear setbacks: commonly 30 ft in open-space and RC districts; exceptions for small parcels (<3 acres) reduce side/rear to 10–20 ft. See § 18.16.040 and district rows.
• Height: RC allows 35 ft / 3 stories; OS may have 24 ft limits. See § 18.16.040.
• Site coverage: very low in OS (e.g., 5% max); RC and REC show 20–40% depending on parcel size. See § 18.16.040.
• FAR: some special districts show specific FAR guidance (e.g., public facility rows list example FARs in the table). See § 18.16.040.

Where it applies: mapped open‑space, recreation, and resource conservation areas; planned developments are governed by their Specific Plan. See § 18.16.050 and § 18.16.060.

ADU-specific deviations and measurement rules — Accessory Dwelling Units (ADUs)

ADU standards (size, setbacks, and allowed deviations) are in § 18.58.025. Key takeaways:

• Standard ADU size limits: 850 sq ft for efficiency/1‑bed ADU and 1,000 sq ft for 2+ bedroom ADU on most lots; 1,200 sq ft cap for single‑family parcels of 1 acre or more (subject to other standards).
• Reduced side/rear setback allowance: ADUs up to 16 ft in height may be sited as close as 4 ft from side/rear property lines. If ADU exceeds 16 ft, it must meet standard side/rear setbacks.
• Additional height allowance for ADUs near qualifying transit: up to 18–20 ft may be allowed in limited cases (see § 18.58.025 for eligibility).
• ADUs remain subject to site coverage, FAR, open space and setback rules unless a specific deviation is authorized under § 18.58.025.

Where it applies: all single‑family and applicable multi‑family parcels, subject to the specific ADU subsection. See § 18.58.025.

Urban lot split / Senate Bill 9 (two‑unit projects)

Truckee’s SB9/urban lot split rules are codified in § 18.95. Key rules that affect development standards:

• Under § 18.95, underlying zone objective setbacks, height, FAR, site coverage and site disturbance standards apply except where the SB9 rules explicitly allow limited reductions (e.g., to enable two units of ~800 sq ft each). Front setback for post‑split dwellings must be at least 20 ft unless this would prevent two 800 sq ft units. See § 18.95.

Decision-relevant standards at a glance

Checklist (what an applicant must satisfy before filing)

• Confirm parcel zoning and consult the relevant district table (e.g., § 18.08.040 for residential, § 18.14.040 for mixed use, § 18.12.050 for commercial).
• Check standard setbacks, height cap, site coverage and FAR from the district row and apply measurement rules in § 18.30.120 and § 18.30.090.
• For ADUs, verify ADU size and reduced‑setback eligibility under § 18.58.025 (and roof/snow‑load rules that apply to reduced setbacks).
• Confirm parking requirements (Chapter 18.48) for the proposed use and any SB9 parking exceptions in § 18.95.
• Check overlay districts (e.g., historic or design overlays) and any parcel‑specific planned development or specific plan that changes base‑zone standards. See the Overlay Districts page and the Code’s Overlay rules.
• Review objective design standards where applicable (e.g., new single‑family subdivisions and character area standards in § 18.25.110).
• If the project needs deviations, identify whether a Director decision, design review or a variance is required (see Chapters on design review and variances).

Risks & Ambiguities

Plain-English Summary

Truckee’s zoning (Title 18) sets district-specific front/side/rear setbacks, height caps (commonly 35 ft / 3 stories), lot/site‑coverage limits (commonly 40–70% depending on district), and FAR rules that vary by district; ADUs have special reduced‑setback and size rules. Always check the precise district row in the Code tables (residential § 18.08.040, mixed‑use § 18.14.040, commercial § 18.12.050, special purpose § 18.16.040) and the general measurement rules in § 18.30.090 and § 18.30.120 before designing.

Source References

• Truckee Development Code — Residential District General Development Standards, § 18.08.040.
• Truckee Development Code — Mixed Use District General Development Standards, § 18.14.040.
• Truckee Development Code — Commercial & Manufacturing Districts, § 18.12.050.
• Truckee Development Code — Special Purpose District General Development Standards, § 18.16.040 (and district subsections § 18.16.050 etc.).
• Truckee Development Code — ADU Standards, § 18.58.025.
• Truckee Development Code — Urban Lot Split / Two‑Unit Projects (SB9), § 18.95.
• Truckee Development Code — Setback measurement and exceptions, § 18.30.120 (and Table 3‑2 projections reference).
• Truckee Development Code — Height measurement and exceptions, § 18.30.090.
• Truckee Development Code — Objective Design Standards and New Single‑Family Subdivision rules, § 18.25.110.
• Parking chapter references: Chapter 18.48 (Off‑Street Parking and Loading Standards).

(If you need the full text of a particular table row or the permitted‑use lists for a district, tell me which parcel or district you’re working with and I’ll extract the exact Code rows and give parcel‑level verification suggestions. Verify with the Town for site‑specific constraints, overlays, and recorded easements.)

Retrieved passages

• Truckee Zoning Code (Chapter 18.40) High relevance show source text
• Truckee Zoning Code (Section 18.08.040) High relevance show source text
• Truckee Zoning Code (TITLE 18) High relevance show source text
• Truckee Zoning Code (Section 18.30.020) High relevance show source text
• Truckee Zoning Code (TITLE 18) High relevance show source text
• Truckee Zoning Code (Chapter 18.40.) High relevance show source text
• Truckee Zoning Code (Chapter 18.40) High relevance show source text
• Truckee Zoning Code (Section 21155.) High relevance show source text

Cited sections

• Truckee Development Code — Residential District General Development Standards, § **18.08.040**.
• Truckee Development Code — Mixed Use District General Development Standards, § **18.14.040**.
• Truckee Development Code — Commercial & Manufacturing Districts, § **18.12.050**.
• Truckee Development Code — Special Purpose District General Development Standards, § **18.16.040** (and district subsections § **18.16.050** etc.).
• Truckee Development Code — ADU Standards, § **18.58.025**.
• Truckee Development Code — Urban Lot Split / Two‑Unit Projects (SB9), § **18.95**.
• Truckee Development Code — Setback measurement and exceptions, § **18.30.120** (and Table 3‑2 projections reference).
• Truckee Development Code — Height measurement and exceptions, § **18.30.090**.
• Truckee Development Code — Objective Design Standards and New Single‑Family Subdivision rules, § **18.25.110**.
• Parking chapter references: Chapter **18.48** (Off‑Street Parking and Loading Standards). (chapter references)
• Truckee_ZoningCode.md

• Official Truckee code library