Mammoth Lakes — Land Use

Last reviewed: July 2, 2026

Overview

This page summarizes what the Town of Mammoth Lakes' Zoning Code (Title 17) actually requires about what can be built and where — the permitted, administrative, and conditional land uses and the basic development standards that apply in each zoning district. It is strictly drawn from the Town's zoning ordinance; interpretive guidance and practical tips are included, but for parcel‑specific questions verify with the jurisdiction. The Town’s overall zoning framework and purpose are in § 17.04.010 . For general zoning map questions see the Mammoth Lakes zoning overview and the Town’s Zoning menu pages.

Important cross-check links used below: the code ties uses to district tables and to other chapters for things like parking (see parking), design review (see design review), and detailed development standards. Overlays are separately mapped and applied (see overlay districts). Accessory dwelling units are handled in Chapter 17.52 and the Town’s ADU page (see ADUs). Building permit rules come from Title 15 and the state code (see California Building Standards Code).

Ground rules from the code

• Uses are permissive: if a use is not listed as permitted, it is prohibited, unless the code provides otherwise — see § 17.04.010 .
• The district-by-district use tables assign uses as P (permitted), A (administrative permit), U (use permit/conditional), or — (prohibited) — see § 17.16.040 .
• The zoning map with district abbreviations is adopted by the Town and used to determine which rules apply to a parcel — see § 17.16.030 .

District-by-district breakdown (purpose, typical permitted uses, key standards, where it applies)

Note: every summary below is tied to the code text; check the cited § for full lists and exceptions. When the use tables or development standards refer to cross‑sections (e.g., Chapter 17.36 parking, or Chapter 17.52 special uses), those sections control detailed criteria.

RSF — Residential Single‑Family

• Purpose: Reserve areas for detached single‑family dwellings at lower density and protect residential character (see § 17.20.010 and the RSF specifics) .
• Typical permitted uses: Single‑family dwellings, accessory uses (including permitted accessory dwelling units under Chapter 17.52), home occupations (as accessory uses) — see the residential use table in § 17.20.020 .
• Key dimensional / development standards: Minimum lot area 7,500 sf, front yard 20 ft, side yard 10 ft, rear yard 10 ft, maximum lot coverage 40%, maximum height 35 ft; see Table 17.20.030 / § 17.20.030 .
• Where applied: low‑density residential neighborhoods as shown on the official Zoning Map and Table 17.16.030 (RSF) .

RMF‑1 and RMF‑2 — Residential Multifamily 1 & 2

• Purpose: Provide areas for medium to higher density multifamily housing consistent with the general plan; densities and intensities differ between RMF‑1 and RMF‑2 (see § 17.20.010 and Table 17.20.030) .
• Typical permitted uses: Multi‑unit housing, accessory uses, limited home occupations; some group living or lodging uses may be allowed with conditions — see § 17.20.020 .
• Key standards: Lot size, setbacks, maximum lot coverage and densities in Table 17.20.030 / § 17.20.030 (e.g. lot coverage up to 50–60%, height 35 ft, densities shown in table) .
• Where applied: Higher‑density residential areas, mapped on the Zoning Map (see § 17.16.030) .

RR — Rural Residential (and RR‑E overlay)

• Purpose: Preserve low‑density residential with rural character; RR‑E adds equestrian overlay rules (see § 17.16.030 listing and § 17.20.010) .
• Typical permitted uses: Single‑family dwellings, accessory uses; equestrian uses where overlay applies (see overlay text; overlay specifics: Not found in retrieved materials for the RR‑E subsections) — Verify with the jurisdiction.
• Key standards: Lot area 15,000 sf, front yard 25 ft, maximum lot coverage 30%, maximum height 35 ft as in Table 17.20.030 / § 17.20.030 .
• Where applied: Outlying low‑density neighborhoods on the Zoning Map; RR‑E where the equestrian overlay is mapped (see overlay districts).

D — Downtown District

• Purpose: Encourage concentrated, pedestrian‑oriented ground‑floor commercial uses and a mixed lodging/residential environment; supports a high FAR up to 2.0 § 17.24.010 .
• Typical permitted uses: Ground‑floor retail and service, mixed residential above, lodging (subject to table), accessory uses; uses specified in Table 17.24.020 determine permit type (P/A/U) — see § 17.24.020 .
• Key standards: Maximum FAR 2.0 (but actual achievable FAR limited by setbacks, stepbacks, snow storage, parking), design review required per Chapter 17.88; building height as established by the district (see § 17.24.010 and related development standards) .
• Where applied: Main Street / core downtown as mapped (see Zoning Map in § 17.16.030) .

OMR — Old Mammoth Road District

• Purpose: Medium‑scale commercial & arts/culture focus along Old Mammoth Road; pedestrian‑oriented with community‑serving retail and galleries, FAR 2.0 § 17.24.010 .
• Typical permitted uses: Retail, galleries, office and service uses; specific use permissions appear in Table 17.24.020 (see § 17.24.020) .
• Key standards: FAR 2.0, design review and active frontage rules apply; consult Table 17.24.020 and Chapter 17.36 standards for setbacks and snow storage (see design review and development standards).

MLR — Mixed Lodging/Residential

• Purpose: Encourage lodging and transient uses mixed with residential and nonresidential uses; emphasizes transient occupancy § 17.24.010 .
• Typical permitted uses: Hotels, motels, transient rental subject to the use table — see § 17.24.020 and specialized lodging rules (e.g., fractional/timeshare rules in Chapter 17.52) .
• Key standards: FAR up to 2.0; design review often triggered; parking and transient‑use rules may impose additional conditions (see the parking chapter and Chapter 17.52 for lodging) .

I — Industrial

• Purpose: Provide for industrial uses consistent with the general plan; uses and development standards are listed in Chapter 17.28 § 17.28.020 – 17.28.030 (industrial uses table and standards) .
• Typical permitted uses: Light industrial, manufacturing (handicraft/custom manufacturing listed as P), recycling facilities with subclassifications, utilities; commercial cannabis activities are specifically classified and controlled (see Chapter 17.52 references) .
• Key standards: Development standards in Table 17.28.030 / § 17.28.030 and Chapter 17.36 (landscaping, screening, noise, etc.) .

P‑QP — Public and Quasi‑Public

• Purpose: Areas for public, institutional and community uses; the allowed uses and permit requirements are in Table 17.32.100 / § 17.32.090 .
• Typical permitted uses: Governmental facilities, schools, utilities (major utilities often require a use permit), community centers, limited parking uses — see § 17.32.090 and its table .

A — Airport (Mammoth Yosemite Airport)

• Purpose and allowed uses: Airport facilities, terminals, hangars and other airport uses are P where shown; ancillary visitor facilities (lodging, retail) may be U (use permit) and are subject to FAA/airport layout plan approvals — see Table 17.32.050 and § 17.32.060 .
• Key standards: Development must follow airport layout plan and FAA requirements; height limits generally 35 ft except aviation safety structures (up to 45 ft) per § 17.32.060 .

PRD — Planned Residential Development

• Purpose: Flexible design with site‑wide planning; uses limited to residential, private recreational, utilities, accessory uses and model homes; specific standards and required findings are in § 17.32.080 .
• Key standards: Minimum site area 2.5 acres, perimeter setbacks, open space requirements (at least 40% open space), and the maximum number of units determined by underlying zoning density (see § 17.32.080) .

MHP — Mobile Home Park Zone

• Purpose & uses: Mobile home parks and associated facilities; specifics in § 17.32.060–.080 (search the use table for mobile home park rules) .

Open Space and Overlays (OS, OSSC, SDD, NVSP) — Overlay and special plan districts

• Purpose: Open Space zones protect natural resources; overlays like OSSC (Open Space/Stream Corridor Protection) and SDD (Snow Deposition Design Overlay) add site‑specific limitations; the NVSP and CSP are specific plan zones with their own rules mapped in Table 17.16.030 and in their respective plan documents § 17.16.030 .
• Typical effect: Overlays can change setbacks, allowable uses, or require additional findings — see overlay districts and the specific overlay text in Title 17 (Not all overlay detail located in retrieved materials; verify with the Town) .

Quick decision‑relevant table (sample of most‑used rules)

Checklist — what an applicant must satisfy to establish a land use in Mammoth Lakes

• Confirm the property's zoning district on the Official Zoning Map (District symbols: RSF, RMF‑1, RMF‑2, RR, D, OMR, MLR, I, P‑QP, A, etc.) § 17.16.030 .
• Check the district use table to confirm the use is P, A, or U in that district; if not listed, the use is prohibited unless the Director finds a comparable use per code rules § 17.16.040 .
• If a land use permit is required, obtain the required permit (administrative or use permit) before establishing the use § 17.08.020 .
• Meet the development standards: setbacks, lot coverage, height, snow storage, grading limits and landscaping in Table 17.20.030 and Chapters 17.36–17.56 for the zone § 17.20.030 .
• Provide required on‑site parking and loading per the parking chapter; where not clear, parking requirements are determined by similar uses or through design review § 17.32.060(4) .
• If design review is required, prepare design documents to Chapter 17.88 standards (see design review) § 17.24.020 .
• Confirm overlay or specific plan constraints (e.g., OSSC, SDD, NVSP) on the parcel and meet overlay standards (see § 17.16.030 and overlay chapters) .
• Obtain other required permits (building, grading, public works encroachments, health, fire) — Title 15 and other titles apply; check California Building Standards Code and local Title 15 rules § 17.08.050 .

Risks & Ambiguities

If a detail above is not present in the retrieved materials, the code text is silent: “Not found in retrieved materials.” In those cases, verify with the jurisdiction.

Plain‑English Summary

Mammoth Lakes’ Title 17 divides the town into named zones (e.g., RSF, RMF‑1, D, OMR, MLR, I, A, P‑QP) and provides a use table for each zone telling you whether a use is permitted, needs an administrative permit, needs a use permit, or is prohibited; dimensional and design controls are set in accompanying tables and cross‑referenced chapters (e.g., setbacks and lot coverage in Table 17.20.030 / § 17.20.030; use classifications in § 17.16.040) .

Source References

• Town Zoning Code Title 17 — introductory authority and purpose: § 17.04.010 .
• Rules for allowable uses, P/A/U designations and interpretation: § 17.16.040 .
• Zoning map and district list (district symbols and where they map): § 17.16.030 (Table 17.16.030) .
• Residential district standards and Table 17.20.030: § 17.20.030 / Table 17.20.030 .
• Residential and accessory use lists (permitted/conditional): § 17.20.020 (use table) .
• Commercial district purpose and use table reference (Downtown, OMR, MLR): § 17.24.010 and § 17.24.020 (Table 17.24.020) .
• Airport zone uses and development standards (Table 17.32.050, § 17.32.060) .
• Planned Residential Development rules and findings § 17.32.080 .
• Development and land use permit general requirements: § 17.08.020 and exemptions § 17.08.030 .
• Director interpretation authority and rules of interpretation: § 17.12.020 .

(All quotes and section references are taken from the Town of Mammoth Lakes Title 17 Zoning Code print export provided in the uploaded materials.)

Retrieved passages

• Mammoth Lakes Zoning Code (§ 17.52.120) High relevance show source text
• Mammoth Lakes Zoning Code (Chapter 17.88.) High relevance show source text
• Mammoth Lakes Zoning Code (§ 17.04.040) High relevance show source text
• Mammoth Lakes Zoning Code (§ 17.16.030) High relevance show source text
• Mammoth Lakes Zoning Code (chapter or) High relevance show source text
• Mammoth Lakes Zoning Code (§ 4) High relevance show source text
• Mammoth Lakes Zoning Code (Chapter 17.56) High relevance show source text
• Mammoth Lakes Zoning Code (Chapter 17.56) Medium relevance show source text

Cited sections

• Town Zoning Code Title 17 — introductory authority and purpose: **§ 17.04.010** . (Title 17)
• Rules for allowable uses, P/A/U designations and interpretation: **§ 17.16.040** . (§ 17.16.040)
• Zoning map and district list (district symbols and where they map): **§ 17.16.030** (Table 17.16.030) . (§ 17.16.030)
• Residential district standards and Table 17.20.030: **§ 17.20.030 / Table 17.20.030** . (§ 17.20.030)
• Residential and accessory use lists (permitted/conditional): **§ 17.20.020** (use table) . (§ 17.20.020)
• Commercial district purpose and use table reference (Downtown, OMR, MLR): **§ 17.24.010** and **§ 17.24.020** (Table 17.24.020) . (§ 17.24.010)
• Airport zone uses and development standards (Table 17.32.050, § 17.32.060) . (§ 17.32.060)
• Planned Residential Development rules and findings **§ 17.32.080** . (§ 17.32.080)
• Development and land use permit general requirements: **§ 17.08.020** and exemptions **§ 17.08.030** . (§ 17.08.020)
• Director interpretation authority and rules of interpretation: **§ 17.12.020** . (§ 17.12.020)
• MammothLakes_ZoningCode.md

• Official Mammoth Lakes code library