Local zoning · Los Banos
Los Banos — Historic Preservation
Historic Preservation under the Los Banos local zoning and planning code, with the controlling citations.
Last reviewed: July 2, 2026
Overview
Los Banos' municipal zoning code does not establish a stand-alone historic-preservation chapter or a city-run landmarks register. References to historic resources are limited and situational: the code exempts certain state/local registered historic sites from the City’s water-landscape rules and treats "architecturally and historically significant historic district" as a limited trigger for other provisions (for example, parking exemptions for ADUs). For preservation-specific building-code relief, Los Banos would apply applicable state rules such as the California Historical Building Code (Title 24, Part 8). See the local ordinance excerpts below for the exact citations and how the zoning code actually uses the term "historic."
What the Los Banos ordinance actually says about "historic" resources (short list)
- The code does not create a local landmark designation procedure or a local historic overlay district in the body of the zoning chapters. Not found in retrieved materials.
- The city's Accessory Dwelling Unit rules exempt ADU parking requirements when an ADU is located “within an architecturally and historically significant historic district” — § 9-3.3007(d)(3).
- The City’s Water Efficient Landscape chapter expressly EXCLUDES registered local, State or Federal historical sites from the WELO applicability list — § 9-6.01.01(d)(1).
- Typical preservation- and design-related city review occurs through broader tools (site plan review / design review, planned development, or P-D conditions) rather than a dedicated historic-review board; see the site plan review and P‑D provisions — § 9-3.2315 and § 9-3.401–.406.
- For building-code alternatives and formal historic building relief, the City would rely on the California Historical Building Code / Title 24 (Part 8) for qualified historical buildings (state-level), not the zoning code. Not an adoption of local preservation regulations in the zoning titles; see CHBC references in the materials.
(Interpretation: Los Banos uses its existing permitting and development-review framework to manage changes to older properties rather than a separate local landmarks/land-use control system.)
District-by-district breakdown (how preservation intersects the City's zones)
The zoning districts are established in § 9-3.301; each district below shows the ordinance purpose, typical permitted uses, and the most directly relevant dimensional or review provisions the code contains. All district text below is taken from the Los Banos Zoning Code; each district line cites the controlling §.
P-D (Planned Development)
- Purpose: flexible, integrated neighborhood design that allows departures from strict lot-by-lot zoning to preserve open space and natural amenities. § 9-3.401.
- Typical permitted uses: any uses compatible with the General Plan and approved final development plan; the Commission may set uses. § 9-3.402.
- Key standards: no minimum lot size; yards/setbacks, coverage and density, and design conditions are set in the Final Development Plan; the City may impose conditions (height, signs, lot coverage) §§ 9-3.410–.413, 9-3.406.
- Where it applies: used where an owner proposes a unified design approach; a practical tool to protect or integrate historic resources through negotiated conditions. § 9-3.401–.407.
R‑C (Rail Corridor)
- Purpose: form-based, mixed-use corridor standards per the Rail Trail Corridor Regulating Plan. § 9-3.501.
- Uses: mixed use, live-work, stacked flats, courtyard flats, townhouses, public/civic, cottage houses, etc. § 9-3.502.
- Key standards: lot sizes, setbacks, yards and parking follow the Regulating Plan (Regulating Code). §§ 9-3.504–.507.
- Where it applies: along the Rail Trail/rail corridor mapped on the City zoning map. § 9-3.501.
R‑1 (Low Density Residential)
- Purpose: stabilize and protect single-family neighborhood character. § 9-3.601.
- Uses: single-family dwellings, public schools, parks, one secondary (accessory) dwelling, home occupations, group homes (≤6), etc. § 9-3.602.
- Key dimensions: max height 30 ft, minimum lot 6,000 sf, lot widths 60' interior / 65' corner, max building coverage 70%, detailed setbacks §§ 9-3.604–.608.
- Where it applies: residential neighborhoods mapped by the City zoning map. § 9-3.301.
R‑2 (Medium Density Residential)
- Purpose: permit higher density (duplexes, triplexes) while preserving privacy and open space. § 9-3.701.
- Uses: duplexes, triplexes, multiple-family, parks, accessory buildings, etc. § 9-3.702.
- Key dimensions: max height 30 ft, min lot 4,000 sf, lot width 40' / 45', lot coverage 70%, setbacks described in §§ 9-3.704–.708.
R‑3 (High Density Residential)
- Purpose: multifamily housing district. § 9-3.801.
- Uses: apartments, multifamily, group dwellings, schools, parks, supportive/transitional housing. § 9-3.802.
- Key dimensions: max height 50 ft (but limited to 30 ft within 50 ft of R‑1/R‑2 boundary), lot-width 75', coverage 70%, setbacks §§ 9-3.804–.808.
M‑X (Mixed Use)
- Purpose: pedestrian-oriented retail with residential or office over the first floor. § 9-3.901.
- Uses: retail, offices, food/beverage, cultural/historical institutions, residential, hotels, public parking, etc. § 9-3.902.
- Key dimensions: max height 50 ft, min building site 1,000 sf, yards per Article 19 where abutting streets §§ 9-3.904–.906.
- Where it matters for preservation: downtown or historic commercial corridors where reuse is common; historic "institutions" are explicitly listed as a permitted use. § 9-3.902(n).
P‑O (Professional Office)
- Purpose: business/professional offices and services less intensive than commercial. § 9-3.1001.
- Uses: business/medical/professional offices, pharmacies (accessory), limited public utilities. § 9-3.1002.
C‑N (Neighborhood Commercial)
- Purpose: convenience retail serving nearby residents. (Article 11); see § 9-3.1102–.1106.
- Uses: grocery, deli, small retail, limited restaurants, services; larger uses require a use permit. § 9-3.1102, 9-3.1103.
- Key dimensions: max height 30 ft, min site 1,000 sf. §§ 9-3.1104–.1106.
C‑1 (General Commercial) and H‑C (Highway Commercial)
- Purpose & uses: broader trade-area commercial (C‑1) and highway-oriented goods/services (H‑C). § 9-3.1201 (C‑1) and § 9-3.1304 (H‑C).
L‑I (Light Industrial) and I (General Industrial)
- Purpose: industrial, research, manufacturing uses separated from residential constraints. §§ 9-3.1401 (L‑I) and 9-3.1501 (I). Key standards for heights, lot size, setbacks in §§ 9-3.1404–.1409, § 9-3.1502.
U (Unclassified) and P‑F (Public Facilities)
- Purpose/use details: the district list includes U and P‑F; P‑F governs public facilities and says site plan review applies to development and that setbacks, signage and compatibility are determined through site plan review — see § 9-3.1604–.1605 for P‑F and § 9-3.301 for district list.
Practical takeaway: there is no dedicated "Historic Overlay" or local "Historic Landmark" ordinance found in the retrieved zoning materials; preservation issues are handled within general site plan, P‑D negotiation, and regulatory exemptions (e.g., WELO, ADU parking). Not found in retrieved materials: a Los Banos municipal landmarks register or historical district map with code-based designation criteria.
Quick decision-relevant standards (table)
| Topic | Rule / standard (plain-English) | Code reference |
|---|---|---|
| ADU parking exemption when in a historic district | No extra ADU parking required if the ADU is in an "architecturally and historically significant historic district." | § 9-3.3007(d)(3) |
| ADU deed restriction requirement | Property owner must record a deed restriction before issuing ADU permits that notifies future owners of owner-occupancy, non-separate-conveyance and rental limitations (JADU carve-outs exist). | § 9-3.3006(d) |
| WELO exemption for historic sites | Registered local, State, or Federal historical sites are exempt from the City’s WELO applicability. | § 9-6.01.01(d)(1) |
| Site / design review for sensitive projects | Projects that require discretionary review must satisfy design/site plan review criteria (compatibility of massing, materials, landscaping and circulation). | § 9-3.2315; § 9-3.2320 |
| Planned Development flexibility | P‑D allows the City (Commission/Council) to set conditions (height, setbacks, signage) to preserve neighborhood character; useful when balancing preservation and new development. | § 9-3.401–.406 |
Checklist — what an applicant must satisfy if working on a potentially historic property in Los Banos
- Confirm whether the property is listed on a State/Federal register (National Register / California Register) or listed by any local agency; if listed, CHBC (Title 24 Part 8) may apply. Verify with State or City staff.
- If proposing an ADU on a property inside an "architecturally and historically significant historic district," note that the code exempts ADU parking — § 9-3.3007(d)(3).
- Prepare for site plan / design review: include elevations, materials, landscaping, access and parking, and show how the design fits the surrounding neighborhood per § 9-3.2315–.2320. Link the design materials to the city's design review requirements.
- If the project involves landscape changes to a registered historic site, document applicability of WELO exemptions (WELO excludes registered historic sites) § 9-6.01.01(d)(1).
- Check whether a P‑D zone or site-specific conditions are in place; a P‑D can carry preservation conditions — § 9-3.401–.407.
- For any construction on a qualified historic building consider the California Building Standards Code (Title 24) and the California Historical Building Code (CHBC) options.
- For signage or other physical changes, confirm sign rules by district (signage article) and any P‑D conditions; sign rules differ by district.
Risks & Ambiguities
| Issue | Why it matters | What to verify |
|---|---|---|
| No local landmark/overlay procedure found | The zoning code contains only limited references to "historic" and no local designation process; unclear how the City will make preservation findings | Verify with Community Development whether a separate historic register, survey, or administrative policy exists outside Title 9; ask whether Planning has an informal preservation review process. Not found in retrieved materials. |
| "Architecturally and historically significant historic district" — undefined phrase | The code uses the phrase (e.g., for ADU parking) but provides no code definition or map in Title 9 | Verify whether the City has adopted an official historic-district map or resolution that defines which areas qualify. § 9-3.3007 uses the phrase but does not define it. § 9-3.3007(d)(3) |
| Deed restriction vs. State ADU law tension | City requires a deed restriction for ADUs in § 9-3.3006(d), but state ADU guidance and HCD materials say deed restrictions cannot be used to add extra ADU standards; potential legal conflict for ADUs on historic properties | Verify with City Attorney whether the local deed-restriction practice was coordinated with state ADU law and whether special rules apply for JADUs. § 9-3.3006(d); HCD guidance on deed restrictions. |
| Preservation relief and building-code compliance | Local zoning may not provide relief for life-safety/building code issues on historic structures — such relief is governed by the CHBC (state), not Title 9 | If building-work affects a qualified historic building, confirm CHBC applicability with Building Division and reference Title 24 Part 8. |
| Who decides design for historically significant properties? | The code routes decisions through site plan review, Planning Commission and City Council for P‑D and discretionary permits — outcomes can be discretionary and subjective | Verify decision authority: the Planning Commission approves site plans and P‑D conditions (see § 9-3.2314, § 9-3.2320) and appeals go to City Council. |
Plain-English summary
Los Banos' zoning code does not create a formal local landmarks program; instead, historic issues are treated in narrow ways (e.g., ADU parking and landscape exemptions) and through general review tools like site plan review or Planned Development negotiations. For technical building-code relief on truly historic structures, the California Historical Building Code is the path to follow. Verify with the Community Development Department whether a local historic survey or map exists before relying on the loose term "historic district."
Source References
- Los Banos Municipal Code, Article 30 (Accessory Dwelling Units), § 9-3.3001–9-3.3008, including § 9-3.3006(d) (deed restriction) and § 9-3.3007(d)(3) (historic-district ADU parking exemption).
- Los Banos Water Efficient Landscape Ordinance (WELO), applicability and exemption for registered historic sites, § 9-6.01.01(d)(1).
- Site plan and design review: § 9-3.2315 (purpose of site plan review) and Planning decision authority § 9-3.2314.
- District establishment and listing of zoning districts: § 9-3.301.
- Planned Development (P‑D) provisions: § 9-3.401–.407.
- Mixed Use, Commercial, Residential and Industrial district texts and dimensional standards: see Articles for R‑1/R‑2/R‑3 (e.g., §§ 9-3.601, 9-3.701, 9-3.801); M‑X §§ 9-3.901–.906; C‑N §§ 9-3.1102–.1106; C‑1 § 9-3.1201; L‑I §§ 9-3.1401–.1409; I § 9-3.1501.
- California Historical Building Code (CHBC) and California Historical Building Code guidance (state-level) for qualified historical buildings (Title 24 / Part 8). Not local code but essential to historic-building work.
Sources
Retrieved passages
- Los Banos Zoning Code (§ 3.04) Medium relevance
- Los Banos Zoning Code (§ 1) Medium relevance
- Los Banos Zoning Code (section shall) Medium relevance
- Los Banos Zoning Code (§ 9-3.2302.) Medium relevance
- Los Banos Zoning Code (§ 9-3.1604.) Medium relevance
- Los Banos Zoning Code (Article 23) Medium relevance
- Los Banos Zoning Code (§ 1) Medium relevance
- Los Banos Zoning Code (§ 1) Medium relevance
- Los Banos Zoning Code (§ 9-2.1602.) Medium relevance
- Los Banos Zoning Code (§ 3) Medium relevance
- CPC § 1 (§ 1) Medium relevance
- Los Banos Zoning Code (section shall) Medium relevance
- Los Banos Zoning Code (§ 65915) Medium relevance
- Los Banos Zoning Code (§ 1) Medium relevance
- Los Banos Zoning Code (chapter applicable) Medium relevance
- Los Banos Zoning Code (§ 6.01) Medium relevance
- CBC § 18955 (Section 18955) Medium relevance
- Los Banos Zoning Code (§ 4.21) Medium relevance
- Los Banos Zoning Code (§ 1) Medium relevance
- Los Banos Zoning Code (§ 36) Medium relevance
- Los Banos Zoning Code (§ 9-3.706.) Medium relevance
- Los Banos Zoning Code (§ 9-3.804.) Medium relevance
- Los Banos Zoning Code (Article 17) Medium relevance
- Los Banos Zoning Code (§ 9-3.809.) Medium relevance
- Los Banos Zoning Code (§ 76) Medium relevance
- Los Banos Zoning Code (section are) Medium relevance
- Los Banos Zoning Code (§ 4.24) Medium relevance
- Los Banos Zoning Code (§ 9-3.2205.) Medium relevance
- Los Banos Zoning Code (§ 9-6.03.06.) Medium relevance
- Los Banos Zoning Code (§ 1) Medium relevance
- Los Banos Zoning Code (chapter does) Medium relevance
- Los Banos Zoning Code (§ 1) Medium relevance
- Los Banos Zoning Code (§ 1) Medium relevance
- CBC § 8 (SECTION 8-301) Medium relevance
- CBC § 8 (CHAPTER 8-6) Medium relevance
- Los Banos Zoning Code (Article 4.) Medium relevance
- Los Banos Zoning Code (§ 21) Medium relevance
- Los Banos Zoning Code (article shall) Medium relevance
- Los Banos Zoning Code (§ 4.28) Medium relevance
- Los Banos Zoning Code (section shall) Medium relevance
- Los Banos Zoning Code (§ 9-3.1407.) Medium relevance
- Los Banos Zoning Code (§ 2) Medium relevance
- Los Banos Zoning Code (Article 30) Medium relevance
- Los Banos Zoning Code (article and) Medium relevance
- Los Banos Zoning Code (§ 2) Medium relevance
Cited sections
- Los Banos Municipal Code, Article 30 (Accessory Dwelling Units), **§ 9-3.3001–9-3.3008**, including **§ 9-3.3006(d)** (deed restriction) and **§ 9-3.3007(d)(3)** (historic-district ADU parking exemption). (Article 30)
- Los Banos Water Efficient Landscape Ordinance (WELO), applicability and exemption for **registered historic sites**, **§ 9-6.01.01(d)(1)**. (§ 9-6.01.01)
- Site plan and design review: **§ 9-3.2315** (purpose of site plan review) and Planning decision authority **§ 9-3.2314**. (§ 9-3.2315)
- District establishment and listing of zoning districts: **§ 9-3.301**. (§ 9-3.301)
- Planned Development (P‑D) provisions: **§ 9-3.401–.407**. (§ 9-3.401)
- Mixed Use, Commercial, Residential and Industrial district texts and dimensional standards: see Articles for **R‑1/R‑2/R‑3 (e.g., §§ 9-3.601, 9-3.701, 9-3.801)**; **M‑X §§ 9-3.901–.906**; **C‑N §§ 9-3.1102–.1106**; **C‑1 § 9-3.1201**; **L‑I §§ 9-3.1401–.1409**; **I § 9-3.1501**. (§ 9-3.601)
- California Historical Building Code (CHBC) and California Historical Building Code guidance (state-level) for qualified historical buildings (Title 24 / Part 8). Not local code but essential to historic-building work. (Title 24)
- LosBanos_ZoningCode.md
- 2025 California Historical Building Code.md
- 2025 California ADU handbook.md
Frequently asked questions
Do I have to follow special local historic-preservation rules to alter a house in downtown Los Banos?
Short answer: Not under a local landmarks ordinance in Title 9 — the Los Banos zoning code does not contain a standalone local landmark or preservation chapter in the retrieved materials. For changes that trigger site-plan or design review you will need to follow normal design-review rules (site, elevations, materials) per § 9-3.2315; for building-code relief on a qualified historic building, consider the California Historical Building Code (Title 24, Part 8).
Is parking required for an ADU on a historic property or in a historic district in Los Banos?
If the ADU sits within an “architecturally and historically significant historic district” the local code says no additional ADU parking is required under the ADU parking rules — § 9-3.3007(d)(3). You must still comply with other ADU rules (deed restriction, design, utilities). Verify whether the property actually lies within a mapped historic district (the code does not define that term in Title 9).
Where does Los Banos set out procedures for reviewing alterations to older buildings?
The City reviews projects through its existing discretionary processes: site plan review, use permits, P‑D final plans, and related design-review checks. The site-plan review purpose and criteria are in § 9-3.2315 (design compatibility, materials, landscaping, circulation). There is no separate historic-review board listed in the retrieved zoning text.
Are registered historic sites exempt from landscaping/water-efficiency rules?
Yes — the Water Efficient Landscape chapter explicitly exempts registered local, State or Federal historical sites from the WELO applicability rules. See § 9-6.01.01(d)(1). Verify whether your property is on such a register.
Can I use the California Historical Building Code (CHBC) for a preservation project in Los Banos?
Yes — for qualified historical buildings the CHBC (Title 24, Part 8) provides alternative building-code provisions for preservation, rehabilitation and restoration. The CHBC applies only if the building/property is a qualified historical building as defined by state law. The local zoning code does not replace Title 24 for life-safety/building-code relief.
Where do I find the City’s zoning map to confirm if my parcel is in a special district?
The zoning districts and the map location are governed by § 9-3.301–.302; the Zoning Map (dated October 20, 2010, as referenced in the code) is on file in the Planning/Community Development office. Ask the Planning Department for a current map or GIS parcel lookup.
If I want to protect a building as a local landmark, what does the code say?
Not found in retrieved materials: the Title 9 chapters provided do not include a local landmarks designation procedure or criteria. To request local landmarking you must verify whether the City has separate resolutions, a Historic Preservation Element in the General Plan, or practices outside of Title 9. Verify with the Community Development Department.
Do I need to record a deed restriction for an ADU on a historic property?
Yes — Los Banos requires a deed restriction for ADUs/JADUs prior to issuance of building or grading permits under § 9-3.3006(d); the deed restriction must state owner-occupancy requirements, prohibition on separate conveyance, unit size and short-term rental restrictions. Note: state ADU guidance places limits on what local agencies may require — verify with Planning/City Attorney about alignment with state ADU rules.
Will a preservation-related change require design review or a use permit?
Most exterior changes of consequence will be handled under city design/site plan review; some uses or physical changes may require a use permit or P‑D conditions depending on the district and the project's effects. See § 9-3.2315 (site plan review) and § 9-3.2325 (use permit hearing and notice).
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