Local zoning · Los Gatos
Los Gatos — Development Standards
Development Standards under the Los Gatos local zoning and planning code, with the controlling citations.
Last reviewed: July 2, 2026
Overview
This page summarizes the development standards in the Town of Los Gatos zoning regulations (commonly codified in Chapter 29). It focuses only on zoning development standards: setbacks, height, lot coverage, density, and FAR — not building-code details or general permitting. For where the Code lives and maps of zones, see the Los Gatos zoning and land use pages. For related topics you will probably need, see the pages on parking, design review, overlay districts, ADUs, historic preservation, and the California Building Standards Code.
Information Gaps
- Official zone map layers (which parcels are in each district) — Not found in retrieved materials; Verify with the jurisdiction.
- Some commercial district numeric tables for CH/CS specifics beyond the HEOZ summary — Not found in retrieved materials; Verify with the jurisdiction.
District-by-district breakdown below pulls directly from the Town Code. Each numeric standard cites the controlling Code section.
R-1 (Single-Family Residential)
- Purpose / where it applies: Standard single-family residential neighborhoods; consult the zone map to confirm parcels (zone map Not found in retrieved materials).
- Typical permitted uses: Single-family dwelling, accessory uses, family daycare, permitted conditional uses per the Code; see the zone’s use lists.
- Key dimensional standards (decision‑relevant):
- Front yard: 25 ft (varies by lot size; see table) — § 29.40.405 .
- Side yard: 8–16 ft depending on lot size (common values 8 ft, 10 ft, 12 ft, 16 ft) — § 29.40.405 .
- Rear yard: 20–25 ft — § 29.40.405 .
- Maximum height: 30 ft — § 29.40.410 .
- Maximum lot/building coverage: 40% — § 29.40.415 .
- Practical notes: Front-yard reductions are allowed when an entire side of a block is developed at once (averaging rule) — § 29.40.405 .
R-D (Duplex / Two-unit Residential)
- Purpose: Low-density multiple dwelling areas compatible with single‑family neighborhoods.
- Typical permitted uses: Single‑family and two‑family dwellings, family daycare, small residential care — § 29.40.510 .
- Key dimensional standards:
- Minimum lot area: 8,000 sq ft — § 29.40.520 .
- Lot frontage/depth: frontage minimums (interior 60 ft, corner 80 ft), depth 100 ft — § 29.40.525 .
- Lot coverage / FAR: maximums per applicable zoning regulations; four-unit/two-unit special rules (see two‑unit standards) — § 29.40.515; § 29.10.630(e) .
- Height: follows the applicable district standard (usually 30 ft where the R‑1 standard applies) and other two‑unit-specific limits — § 29.10.630(a) .
R-M (Multiple-Family Residential)
- Purpose: Medium- to higher-density residential development.
- Typical permitted uses: Multi-family dwellings, supportive residential uses per Code.
- Key dimensional standards:
- Minimum yards: front 25 ft, rear 20 ft, side 8–10 ft (greater where windows face side) — § 29.40.645 .
- Minimum separation between main buildings: 24 ft (and 40 ft between walls with living-room windows) — § 29.40.640 .
- Maximum height: generally 30 ft, 35 ft where below‑grade parking provided — § 29.40.650 .
- Maximum lot coverage: 40% — § 29.40.655 .
HR (Hillside Residential)
- Purpose: Protect foothills/steep terrain, minimize grading and preserve natural features — § 29.40.230 .
- Typical permitted uses: Single-family dwellings, limited accessory uses; slope-density rules tie intensity to steepness.
- Key dimensional / special rules:
- Slope-density and design standards apply (see Hillside Development Standards and Guidelines referenced in the Code) — § 29.40.230 .
- ADU special location rules: detached ADUs generally not permitted in front of the primary dwelling except in HR zones — § 29.10.325(a)(1) .
- Many HR developments require architecture and site approval and limits on roadway/trail construction — § 29.40.235; § 29.40.180 .
RC (Resource Conservation)
- Purpose: Preserve open space, watershed, wildlife, and limit intensity in Williamson Act / hillside areas — § 29.40.155 .
- Typical permitted uses: Single-family dwellings (limited to one principal residential structure per lot), agriculture (except dairying), conservancy and public open‑space uses — § 29.40.160 .
- Key dimensional standards:
- Maximum height: 30 ft for principal buildings — § 29.40.170(a) .
- Minimum lot area: 20 acres (for RC) — § 29.40.170(b) .
- Minimum yards: Front 30 ft; Side 20 ft; Rear 25 ft; Side abutting street 20 ft — § 29.40.170(c) .
- Practical note: Landscaping and preservation of natural vegetation are required — § 29.40.175 .
O (Office)
- Purpose: Office uses serving the Town.
- Typical permitted uses: Offices, business services, limited retail/service activities allowed in an office setting — § 29.60.085—29.60.100 .
- Key dimensional standards:
- Minimum lot area: 8,000 sq ft — § 29.60.095 .
- Yards: Front 25 ft; Side 10 ft; Rear 20 ft; Side abutting street 15 ft — § 29.60.100 .
- Height: 35 ft for principal buildings, accessory buildings 15 ft — § 29.60.105 .
- Maximum building coverage: 40% — § 29.60.110 .
- FAR limit (parking assessment district): FAR not to exceed 0.60 in a parking assessment district for new or expanded buildings — § 29.60.115(a) .
CM (Controlled‑Manufacturing)
- Purpose: Light manufacturing and controlled industrial uses.
- Key dimensional standards:
- Yards: Front/side abutting street 25 ft plus 1 ft per foot of building height over 20 ft; side 25 ft; rear none except 20 ft when adjacent to residential plus 1 ft per foot of building height over 20 ft — § 29.70.235 .
- Height: 35 ft maximum — § 29.70.240 .
- Maximum lot coverage: 50% — § 29.70.245 .
Overlay zones and special districts
- Planned Development (PD) overlay: purpose and limits: preserve resources, promote affordable housing and public benefit; PD provisions and procedural limits are in §§ 29.80.075—29.80.080 — § 29.80.075–080 .
- Historic / Landmark (LHP) overlay and HEOZ (Housing Element Overlay Zone): HEOZ includes by‑right residential development standards and density ranges in § 29.80.510 and its Table 1A — § 29.80.510 (HEOZ Table 1A) . HEOZ provides density floors/ceilings and objective development standards for qualifying projects.
- Practical guidance: overlay standards supplant or layer on top of the underlying zone; consult the specific overlay section for which rules control — § 29.80.010 .
Floor Area Ratio (FAR) rules and formulas
- FAR is explicitly defined and used as a nominal limit to judge mass/scale and compatibility; the Code provides formulas for allowable FAR based on net lot area and separate formulas for garage area — see § 29.50.060 (FAR formulas and allowance to exceed based on design findings) — § 29.50.060 .
- There are exemptions: lots less than 5,000 sq ft and lots greater than 30,000 sq ft are often exempt from certain FAR formulas — § 29.50.060(b)(3) .
- The deciding body can allow FAR above formula limits if findings on design compatibility are made — § 29.50.060(c) .
ADUs and two-unit housing special standards
- ADUs must comply with objective development standards; location, height, landscaping, and other controls are in § 29.10.325. Notably, detached ADUs cannot be placed in front of the primary dwelling except in HR zones — § 29.10.325(a)(1) .
- Two‑unit housing developments created under state law have specific objective standards in § 29.10.630, including building height limits in setbacks (16 ft where in side/rear setbacks), driveway rules, and possible modest FAR increases when conditions are met — § 29.10.630 .
Table — Quick reference for frequently used numeric standards
| Topic | Typical value(s) | Code Reference |
|---|---|---|
| R-1 front setback | 25 ft (varies by lot size) | § 29.40.405 |
| R-1 max height | 30 ft | § 29.40.410 |
| R-1 max lot coverage | 40% | § 29.40.415 |
| FAR formulas (residential) | Formula varies by net lot area; garages treated separately | § 29.50.060 |
| RC minimum lot area | 20 acres | § 29.40.170(b) |
| O zone building height | 35 ft | § 29.60.105 |
| CM zone rear yard (adjacent to residential) | 20 ft + 1 ft per ft over 20 ft height | § 29.70.235 |
| ADU front-of-house prohibition (detached) | Not allowed except in HR | § 29.10.325(a)(1) |
Checklist
- Confirm the zoning district for the parcel (verify on Town map; zone map Not found in retrieved materials).
- Verify the applicable district standards: setbacks (§), height (§), lot coverage (§) — see the district sections above for exact § citations.
- Calculate FAR using the Code formula and determine exemptions — § 29.50.060 .
- If an ADU or two‑unit project, apply the objective standards in § 29.10.325 and § 29.10.630 respectively — .
- Check for overlays (PD, LHP, HEOZ) and their special standards — § 29.80.075; § 29.80.510 .
- Determine if design review or architecture & site approval is required (see design review).
- For projects involving grading, tree removal, or Hillside areas, confirm Hillside and Tree Protection requirements — § 29.40.230; Chapter 29, Article I, Division 2 (Tree Protection) .
Risks & Ambiguities
| Issue | Why it matters | What to verify |
|---|---|---|
| Parcel zoning map / exact zone boundaries | Numeric standards depend on zone | Verify parcel zoning with Planning Department / official zone map — zoning map Not found in retrieved materials |
| FAR formula inputs (net lot area definition, inclusion of corridors) | Mis‑calculating lot area can change allowable FAR | Confirm what count as net lot area for your lot (flag lots/access corridors per § 29.40.515) — § 29.40.515 |
| Overlays (HEOZ, PD, LHP) | Overlay can supersede or add standards and permit pathways (e.g., HEOZ by‑right rules) | Check overlay applicability and Table 1A/1B standards in § 29.80.510 — § 29.80.510 |
| ADU placement and local ADU exceptions | ADU state law interacts with local rules; local Code has specific location rules (e.g., HR exception) | Apply § 29.10.325 and cross-check with state ADU law and local ADU page — § 29.10.325 |
| Nonconforming conditions | Expansion rules differ for nonconforming buildings (may cap enlargements) | Confirm nonconforming building rules in §§ 29.10.245—29.10.250 before proposing additions — § 29.10.250 |
Plain-English Summary
Los Gatos sets district-specific rules for how big and tall buildings can be, how close they sit to property lines, and how much of a lot they can cover. For most single‑family neighborhoods (R‑1) expect 25 ft front setbacks, 30 ft height limits, and 40% lot coverage; multifamily and commercial zones have their own numeric standards and overlays can change those rules — see the cited Code sections above for the exact legal text.
Source References
- Town of Los Gatos, Zoning Code (Chapter 29): R‑1 yards / height / coverage: § 29.40.405, § 29.40.410, § 29.40.415 .
- FAR and formulas: § 29.50.060 (Floor Area Ratio) .
- RC zone development standards (height, lot area, yards): § 29.40.170, § 29.40.155, § 29.40.160 .
- O zone yards/height/coverage and parking-area FAR: § 29.60.095, § 29.60.100, § 29.60.105, § 29.60.110, § 29.60.115 .
- R‑M yards, building separation, height, coverage: § 29.40.640, § 29.40.645, § 29.40.650, § 29.40.655 .
- CM zone yards / height / coverage: § 29.70.235, § 29.70.240, § 29.70.245 .
- HR zone intent and ADU exception: § 29.40.230; ADU objective standards § 29.10.325 .
- Two‑unit housing objective standards: § 29.10.630 .
- Planned development / overlay scope and HEOZ: § 29.80.075—29.80.080; § 29.80.510 (HEOZ Table 1A) .
- Nonconforming expansion rules: § 29.10.245—29.10.250 .
Sources
Retrieved passages
- Los Gatos Zoning Code (section 29.40.160) High relevance
- CBC § 66314 (§ 66314) High relevance
- Los Gatos Zoning Code (section 29.10.200) High relevance
- CFC § 29.10.09015 (Chapter V) High relevance
- Los Gatos Zoning Code (§ 4.10.110) High relevance
- Los Gatos Zoning Code (§ 66317) High relevance
- Los Gatos Zoning Code (article which) High relevance
- Los Gatos Zoning Code (§ 4.52.020) High relevance
Cited sections
- Town of Los Gatos, Zoning Code (Chapter 29): R‑1 yards / height / coverage: **§ 29.40.405**, **§ 29.40.410**, **§ 29.40.415** . (Chapter 29)
- FAR and formulas: **§ 29.50.060** (Floor Area Ratio) . (§ 29.50.060)
- RC zone development standards (height, lot area, yards): **§ 29.40.170**, **§ 29.40.155**, **§ 29.40.160** . (§ 29.40.170)
- O zone yards/height/coverage and parking-area FAR: **§ 29.60.095**, **§ 29.60.100**, **§ 29.60.105**, **§ 29.60.110**, **§ 29.60.115** . (§ 29.60.095)
- R‑M yards, building separation, height, coverage: **§ 29.40.640**, **§ 29.40.645**, **§ 29.40.650**, **§ 29.40.655** . (§ 29.40.640)
- CM zone yards / height / coverage: **§ 29.70.235**, **§ 29.70.240**, **§ 29.70.245** . (§ 29.70.235)
- HR zone intent and ADU exception: **§ 29.40.230**; ADU objective standards **§ 29.10.325** . (§ 29.40.230)
- Two‑unit housing objective standards: **§ 29.10.630** . (§ 29.10.630)
- Planned development / overlay scope and HEOZ: **§ 29.80.075—29.80.080**; **§ 29.80.510** (HEOZ Table 1A) . (§ 29.80.075)
- Nonconforming expansion rules: **§ 29.10.245—29.10.250** . (§ 29.10.245)
- LosGatos_ZoningCode.md
Frequently asked questions
What can I build on an R-1 lot in Los Gatos?
On an R-1 lot you can build a single‑family dwelling and customary accessory uses subject to district dimensional standards: front setback ~25 ft, side setbacks depending on lot area (typical 8–16 ft), height limit 30 ft, and max coverage 40%; see § 29.40.405, § 29.40.410, § 29.40.415 for the exact table values — § 29.40.405; § 29.40.410; § 29.40.415 .
What are Los Gatos setback requirements?
Setbacks are zone‑specific. Example: R‑1 front setback is 25 ft (with block‑averaging exceptions) and side/rear dimensions vary by lot size — see § 29.40.405; other zones (O, CM, R‑M, RC) have their own yard rules in their zone sections — § 29.40.405; § 29.60.100; § 29.70.235; § 29.40.170 .
How is building height measured in Los Gatos?
The Code sets a maximum building height per zone (commonly 30 ft for residential and 35 ft for many commercial/office/manufacturing zones) and directs that height be measured as provided in the Code measurement rules (see each zone's height provision and the referenced measuring section) — see § 29.40.410 and related zone sections for the numeric limits — § 29.40.410 .
How do I calculate FAR for a residential lot?
The Code provides formulas for allowable FAR tied to net lot area and gives a separate garage formula; some lots (under 5,000 sq ft or over 30,000 sq ft) are exempt — consult § 29.50.060 for the formulas and exemptions — § 29.50.060 .
Do overlays (like HEOZ or PD) change development standards?
Yes. Overlay zones such as PD and HEOZ add or change standards (HEOZ supplies by‑right density ranges and objective standards in Table 1A). Always check the overlay section that applies to your parcel — see § 29.80.075—29.80.080 and § 29.80.510 — § 29.80.075–080; § 29.80.510 .
Are there special rules for ADUs in Los Gatos?
Yes. ADUs must meet the objective development standards in § 29.10.325 (location, setbacks, height, landscaping, lighting, tree protection, and other objective requirements). One example: detached ADUs generally cannot be placed in front of the primary dwelling except in HR zones — § 29.10.325(a)(1) .
What rules apply to adding onto a nonconforming building?
The Code limits expansions of nonconforming buildings; expansions cannot increase nonconformity and are governed by the rules in § 29.10.245—29.10.250 (including the 50% value rule for structural work and restrictions on moving closer to property lines) — § 29.10.245—29.10.250 .
Do I need design review for a residential addition?
Design review / architecture and site approval is required in many contexts (Hillside, PD overlays, nonconforming lot adjustments), and two‑unit projects are subject to non‑discretionary objective design review in some cases; check design review and the applicable Code section for your project — § 29.10.630; § 29.80.510 .
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