Local zoning · Claremont

Claremont — Development Standards

Development Standards under the Claremont local zoning and planning code, with the controlling citations.

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Last reviewed: July 1, 2026

Overview

This page summarizes what Claremont's zoning ordinance (Title 16) actually requires for core development standards — setbacks, heights, lot coverage, density and FAR — and explains where those rules live in the code and how they are applied in practice. It focuses strictly on the local zoning rules (Title 16) and points to the chapters you must read for measurement rules, exceptions, and procedure. For the city's broader context see the Claremont zoning & planning overview.

District-by-district development standards

Below are the Claremont districts that most frequently drive project feasibility. Each subsection lists the district purpose, typical permitted uses (short), and the key dimensional controls you must check first (setbacks, height, lot coverage, density/FAR) — with the controlling code citation beside each rule.

Important: measurement rules and certain exceptions are handled in the general development standards and measurement chapters referenced below (for example § 16.130 for measurement/exceptions) — always confirm calculations there.

RS — Single‑Family Residential (Chapter 16.001)

  • Purpose / uses: The RS districts provide one single‑family dwelling per lot and customary accessory uses; ADUs/junior ADUs are regulated under the ADU chapter. § 16.001.000 and § 16.001.010.
  • Key standards (development standards are in § 16.001.040):
    • Minimum lot sizes / dimensions — e.g., RS (20,000): 20,000 sq ft, width 90 ft, depth 120 ft; smaller RS designations have smaller minima. § 16.001.040.A.
    • Front setbacks — RS (20,000): 15 ft (garage vehicle entrance 18.5 ft); RS (13,000): 30 ft; RS (10,000) & RS (8,000): 25 ft. § 16.001.040.C.
    • Interior side — typically 8 ft (reduced to 5 ft adjacent to slope in some cases). § 16.001.040.C.
    • Rear setback — typically 8 ft. § 16.001.040.C.
    • Max height / stories — Main buildings 2 stories / 25 ft; accessory buildings 15 ft. § 16.001.040.H–I.
    • Max lot coverage — RS (20,000): 30%, RS (13,000): 35%, RS (10,000): 35%, RS (8,000): 40%. § 16.001.040.D.
    • Maximum floor area (main house) — formula plus absolute caps by RS band (e.g., RS (20,000) max 7,500 sf). § 16.001.040.E.
  • Where it applies: the RS chapters and the Official Zoning Map; check overlay chapters (e.g., ADU‑Ready overlay) for modifications. § 16.001.000; see overlay rules § 16.015.020 for ADU overlays.

HC — Historical Claremont (Chapter 16.004)

  • Purpose / uses: Preserve HC’s historic single‑family character; alterations subject to compatibility criteria. § 16.004.000.
  • Key standards (see § 16.004.060):
    • Minimum lot area – 7,500 sq ft; width 50 ft; depth 150 ft. § 16.004.060.A.
    • Setbacks — Front 20 ft; Interior side 5 ft; Street side 15 ft; Rear 5 ft. § 16.004.060.C.
    • Max stories/height — Main 2 stories / 25 ft; accessory 1 story / 15 ft. § 16.004.060.D–E.
    • Max lot coverage — 35%. § 16.004.060.F.
  • Design review and preservation: projects affecting HC are subject to the Architectural and Preservation Commission and the Historic Preservation rules. See Claremont Historic Preservation and the Architectural review rules in Chapter 16.300.

RR — Rural Residential (Chapter 16.007)

  • Purpose / uses: Very large lots, hobby livestock, equestrian/trees; different lot sizes (35,000 sf or 1 acre) apply. § 16.007.000.
  • Key standards (§ 16.007.040):
    • Minimum lot size — RR (35,000): 35,000 sq ft; RR (1 acre): 1 acre. § 16.007.040.A.
    • Front setbacks — 40 ft (lower‑height portions may have 40 ft but tall portions require 60 ft under some circumstances). § 16.007.040.B.
    • Side / rear — rear 20–25 ft depending on RR subzone; side yards required as percentage of lot width. § 16.007.040.C–D.
    • Max lot coverage — 20%. § 16.007.040.E.

AV — Arbol Verde single‑family (Chapter 16.019)

  • Purpose / uses: Preserve Arbol Verde neighborhood character; special rules where Colleges abut residences. § 16.019.000.
  • Key standards (§ 16.019.070):
    • Min lot area / dims — typical 7,500 sq ft, width 50 ft, depth 100 ft; AV1 exceptions possible with CUP. § 16.019.070.A.1.
    • Setbacks — Front 20 ft; Interior side 5 ft; Street side 15 ft; Rear 5 ft. § 16.019.070.A.2.
    • Max height / stories — main 2 stories / 25 ft; accessory 1 story. § 16.019.070.A.4–5.
    • Special institutional rules — playing field lighting, parking setbacks, tree replacement, and relocation procedures when Colleges are involved. § 16.019.070.B.
  • Architectural review: exterior changes and many projects require review under § 16.019.080.

MU — Mixed‑Use districts (MU1–MU4) (Chapter 16.040)

  • Purpose / uses: Ground floor commercial with residential above/adjacent; MU1/MU2 allow higher residential densities. § 16.040.020; district characteristics in Chapter 16.040.
  • Key standards (Table 16.040.2 / § 16.040.060):
    • Stories/Height — MU1 & MU2: max 3 stories / 42 ft; MU3 & MU4: max 2 stories / 28 ft. § 16.040.060 (Table 16.040.2).
    • Setbacks / building placement — encouraged to place buildings forward; minimum building setback 10 ft along street frontage and any adjacent residential district; third story facing a single‑family boundary requires an extra 10‑ft setback. § 16.040.060.
    • Density / FAR — MU1/MU2 density up to 22 du/acre; MU3/MU4 up to 15 du/acre; commercial FARs listed per MU subdistrict (see district text). § 16.040.020 and § 16.040.060.
    • Usable open space required per unit; parking standards are district‑specific. § 16.040.060.
  • Overlay: the MU60 Overlay (Table 16.014.4) sets alternative rules for sites under housing opportunity programs (e.g., max height 5 stories / 60 ft and density 60 du/acre where mapped). § 16.014.4.

I — Institutional districts (Chapter 16.069)

  • Purpose / uses: Colleges, major institutions; more flexible master‑plan approach for campuses. § 16.069.000.
  • Key standards:
    • Setbacks when abutting residential — 25 ft plus 1 ft additional per foot of building height above 30 ft (special limits for buildings >30 ft inside certain distances). § 16.069.050.A.
    • Height by setback rule — height allowed increases with setback: portions within 25 ft of the boundary limited to 25 ft; greater setbacks allow increasing heights up to 100 ft for large setbacks (see § 16.069.060).
    • Max lot coverage (campus) — 60%, and FAR ≤ 1.0 for an institutional campus unless a master plan or CUP provides otherwise. § 16.069.070–080.
    • Master plans may supersede Title 16 provisions where an approved master plan is in place; master plans must address FAR, open space, and interface with neighborhoods. § 16.069.030–040.

B/IP — Business / Industrial Park (Chapter 16.054)

  • Purpose / uses: B/IP supports light industrial/office park uses with landscaped setbacks to buffer residential areas. § 16.054.000.
  • Key standards (§ 16.054.020):
    • Building height — generally 2 stories / 35 ft; where not abutting residential districts, may go to 4 stories / 50 ft if front/street side setbacks are increased 2 ft for every foot above 35 ft. § 16.054.020.B.
    • Setbacks — front/street side 25 ft (in some cases 35 ft if on a major/secondary street or across from residential); interior side 10 ft (up to 50 ft next to residential); rear 10 ft (up to 50 ft next to residential). § 16.054.020.C.

CV — Claremont Village (Chapter 16.060)

  • Purpose / uses: Preserve pedestrian scale and storefront character of downtown CV; development is controlled by the Village Design Plan. § 16.060.000 and § 16.054.030.
  • Standards: CV relies on Chapter 16.060 and the Village Design Plan (design‑oriented rules govern placement, frontage, and design rather than conventional suburban setbacks). See § 16.060.020 and Village Design Plan requirements. § 16.060.020; design review is required.

H (Hillside), RM (Medium Density), and other districts

  • Hillside slope‑density standards and uniform setbacks/height caps are specified in § 16.010 (slope‑density tables SD‑1/2/3). § 16.010.020–030.
  • RM districts and other multi‑family districts carry their own density/parking/height rules in Chapter 16.013. § 16.013.020 et seq.

Quick reference table — selected decision‑relevant controls

District Front setback Interior side Rear Max height / stories Max lot coverage Density / FAR Code reference
RS (20,000) 15 ft 8 ft 8 ft 25 ft / 2 stories 30% Main house area cap (max 7,500 sf) § 16.001.040
HC 20 ft 5 ft 5 ft 25 ft / 2 stories 35% Special historic controls apply § 16.004.060
RR (35,000) 40 ft See text (pct width) 20 ft 25 ft typical 20% Very low density § 16.007.040
AV 20 ft 5 ft 5 ft 25 ft / 2 stories 35% (see AV) Neighborhood rules, special institutional standards § 16.019.070
MU1 / MU2 10 ft min building setback (street) Variable 5 ft (overlay exceptions) MU1/2: 42 ft / 3 stories Project based MU1/2: up to 22 du/acre; FAR per subdistrict § 16.040.060
I (Institutional) 25 ft (plus height‑based increases) Use setbacks to buffer residential Varies Height increases by setback; can reach 100 ft at large setback 60% (campus) FAR ≤ 1.0 (campus) § 16.069.050–080
B/IP 25 ft (35 ft on major streets) 10 ft (up to 50 ft next to residential) 10 ft (up to 50 ft next to residential) 35 ft (2 stories); up to 50 ft / 4 stories where not abutting residential (with setback increases) Project dependent N/A § 16.054.020
MU60 Overlay 0–15 ft (project conditions) 5 ft 5 ft up to 60 ft / 5 stories (limits on footprint of upper floors) Project dependent 60 du/acre when mapped Table 16.014.4 / § 16.014

How measurements, exceptions, and review affect these numbers

  • Floor area/lots/lot coverage are calculated per the measurement rules in § 16.130; accessory buildings within 6 ft of the main building sometimes count toward floor area. § 16.130; see yard landscaping standards in § 16.130.030.
  • Architectural Commission and Planning Commission can approve deviations, reductions, or CUPs in many districts (e.g., reduced building setbacks by Architectural Commission; conditional use allows extra height in some institutional and commercial cases). See § 16.300 (design review) and the specific district sections that reference review.
  • ADUs: Claremont’s ADU rules sit in Chapter 16.333 and are cross‑referenced into each district; the ADU chapter limits local standards to those consistent with state ADU law. See the city ADU page for process specifics and California ADU law for state limits. § 16.333.

Note the City's parking rules (see Chapter 16.136) when calculating feasibility — required covered parking for single‑family lots is typically 2 covered spaces. For parking details see Claremont Parking.

Checklist — what an applicant must satisfy (initial pre‑submission)

  • Verify zoning district and any overlays on the Official Zoning Map; confirm whether AHOs/overlays (e.g., MU60, ADU‑Ready) apply. § 16.000.020, § 16.014.
  • Prepare a site plan that checks: required front / interior / street side / rear setbacks, lot coverage, and FAR / maximum floor area per the district. Relevant district sections: § 16.001.040, § 16.004.060, § 16.019.070, § 16.040.060, § 16.069.070–080.
  • Confirm measurement rules (how floor area and height are measured) in § 16.130.
  • Check parking requirements and whether shared/ reduced parking credits or ADU parking exemptions apply; consult Chapter 16.136 and the ADU chapter. See Claremont Parking and ADU rules.
  • Determine whether Architectural Commission or staff design review is required; if in HC or AV or for multi‑unit projects expect design review. See Claremont Design Review.
  • For projects affecting historic resources, check Chapter 16.302 and consult Claremont Historic Preservation.
  • If relying on an exception, variance, or CUP, include the findings you must meet (see § 16.303, § 16.309). Verify with the jurisdiction. Not all relaxations are automatic.
  • Confirm that local ADU standards in § 16.333 comply with State ADU law (if proposing an ADU). See Claremont ADUs and California ADU law.

Risks & Ambiguities

Issue Why it matters What to verify
Setback exceptions and encroachments Architectural Commission can allow encroachments or reduced setbacks (design tradeoffs). Relying on a presumed exception without a formal approval risks denial. Confirm whether the project will require Architectural Commission approval and what findings/conditions apply (see § 16.300 and relevant district section).
Floor area vs FAR vs “maximum floor area” caps Districts use different controls (some use an absolute main‑house cap, others use FAR). Mis‑calculating can push a design over limits and trigger redesign. Use measurement rules in § 16.130 and the exact district cap (e.g., § 16.001.040.E for RS caps; § 16.069.080 for Institutional FAR).
Overlay / map applicability Overlays (e.g., MU60, ADU‑Ready) change height/density/setbacks where mapped. Missing an overlay can be fatal to entitlement strategy. Confirm parcel overlays on the Official Zoning Map and read the overlay chapter (e.g., § 16.014, § 16.015.010).
ADU vs state law limits State ADU law constrains what local rules may impose (minimum ADU sizes, maximum local restrictions). Local ADU rules must be read against state law. Cross‑check § 16.333 with state ADU law; if conflict, state law may preempt some local requirements. Verify with jurisdiction and the City's ADU guidance.
Nonconforming structures Rebuilding, additions, or expansions to nonconforming structures trigger special rules (Chapter 16.400). Check § 16.400 before proposing an addition to an older legal nonconforming building.

Plain‑English summary

If you want to build in Claremont, first determine the zoning (RS, HC, RR, AV, MU, I, B/IP, CV, etc.), then apply the district's numeric rules for front/side/rear setbacks, allowed height/stories, lot coverage and either an FAR or a maximum floor‑area cap — those numbers are listed in the district chapters (for example § 16.001.040 for RS rules, § 16.004.060 for HC, § 16.040.060 for MU). Many districts require design review; overlays and institutional master plans can change the usual numeric rules, so check the Official Zoning Map and the specific overlay chapter before you spend on detailed plans.

Source References

  • Title 16, Chapter 16.000 et seq. (Zoning/Development Code; official Title 16 listing and district table) — § 16.000.020.
  • RS Single‑Family standards — § 16.001.040 (development standards for RS districts)
  • Historical Claremont (HC) standards — § 16.004.060 (development standards for HC)
  • RR Rural Residential standards — § 16.007.040 (standards for RR)
  • AV (Arbol Verde) standards — § 16.019.070 (development standards for AV)
  • MU Mixed Use standards — § 16.040.060 and § 16.040.020 (Table 16.040.2 and district characteristics)
  • Institutional (I) standards — § 16.069.050–080 (setbacks, height by setback, lot coverage, FAR)
  • Business/Industrial Park (B/IP) standards — § 16.054.020 (development standards)
  • MU60 Overlay table — Table 16.014.4 / § 16.014 (overlay standards)
  • Nonconformities — § 16.400.
  • ADU chapter — § 16.333 (Accessory Dwelling Units); see also state context in California ADU law.
  • Measurement and general exceptions — Chapter 16.130 (measurement, landscaping, exceptions).

Internal/related pages (first mention of each below is linked in context above): Claremont zoning & planning overview, Claremont Zoning, Claremont Land Use, Claremont Parking, Claremont Design Review, Claremont Overlay Districts, Claremont Historic Preservation, Claremont Signage, Claremont ADUs, California Building Standards Code, California ADU law.

Sources

Retrieved passages

  • Claremont Zoning Code (§ 16.054.030.) High relevance
  • Claremont Zoning Code High relevance
  • Claremont Zoning Code High relevance
  • Claremont Zoning Code (§ 16.069.070.) High relevance
  • Claremont Zoning Code (Section 16.019.050.C.2) High relevance
  • Claremont Zoning Code (§ 16.069.060.) High relevance
  • Claremont Zoning Code (§ 16.040.060.) High relevance
  • Claremont Zoning Code High relevance
  • Claremont Zoning Code High relevance
  • Claremont Zoning Code High relevance
  • Claremont Zoning Code High relevance
  • Claremont Zoning Code (§ 16.004.060.) High relevance
  • Claremont Zoning Code High relevance
  • Claremont Zoning Code (Chapter 16.004.) High relevance
  • Claremont Zoning Code (Title 18.) High relevance
  • Claremont Zoning Code (Chapter 16.004.) High relevance
  • Claremont Zoning Code (Chapter 16.001.) High relevance
  • Claremont Zoning Code (§ 16.400.010.) Medium relevance
  • Claremont Zoning Code (§ 16.019.060.) High relevance
  • Claremont Zoning Code Medium relevance
  • Claremont Zoning Code Medium relevance
  • Claremont Zoning Code (Title 6) Medium relevance
  • Claremont Zoning Code (§ 16.013.030.) Medium relevance
  • Claremont Zoning Code (Chapter 16.013.) Medium relevance
  • Claremont Zoning Code (§ 16.333.020.) Medium relevance

Cited sections

Frequently asked questions

What can I build on an R‑1 / RS lot in Claremont?

Claremont uses RS zoning bands (e.g., RS (20,000), RS (13,000), RS (10,000), RS (8,000)). You may build one single‑family dwelling per lot plus accessory structures; setbacks, height, lot coverage and maximum main‑house area are prescribed in § 16.001.040 (e.g., RS (20,000) front setback 15 ft, max lot coverage 30%, main building max 25 ft / 2 stories). Confirm lot size and any overlays that affect the parcel.

What are Claremont setback requirements for single‑family homes?

Setbacks depend on the RS subzone: RS (20,000) front 15 ft, RS (13,000) front 30 ft, RS (10,000) front 25 ft, RS (8,000) front 25 ft; interior side yards are generally 8 ft and rear 8 ft (see § 16.001.040.C). Special rules (e.g., slope exceptions, garage stalls) are in the same section and Chapter 16.130.

How high can I build in Claremont?

Height limits are district specific: many residential districts allow 2 stories / 25 ft for main buildings (see § 16.001.040.I and § 16.004.060.E for HC), MU districts have higher caps (e.g., MU1/MU2: 42 ft / 3 stories), and institutional height often increases with setback (see § 16.069.060). Always check the applicable district chapter and measurement rules in § 16.130.

Where is FAR used in Claremont and what are the limits?

FAR controls appear in several districts: for example institutional campuses have a campus FAR ≤ 1.0 (§ 16.069.080), and certain MU districts and commercial districts list FAR or commercial floor‑area caps in their district text (see § 16.040.020 and district tables). Always verify the applicable district text and whether master plans or overlays alter FAR.

Do I need design review for a new house or addition?

Design review requirements vary: many projects in HC, AV, multi‑unit developments, and most non‑single‑family projects require Architectural Commission review; minor residential changes are typically reviewed by staff. See the Architectural review rules in Chapter 16.300 and the district chapters that list review triggers (for example § 16.019.080 for AV). Verify early with planning staff.

Can an institution build taller if it’s set back from homes?

Yes. In the Institutional districts the allowed height increases with setback from residential boundaries (portions within 25 ft are limited to 25 ft, but farther back larger heights up to 100 ft are possible per § 16.069.060); taller buildings may also require a conditional use permit and findings.

How does the MU60 overlay change development rules?

Where the MU60 Overlay applies, different density/height/setback rules apply (e.g., up to 60 du/acre and up to 60 ft / 5 stories with specific upper floor footprint limits). See Table 16.014.4 and § 16.014 for the overlay standards and applicability. Overlay mapping on the Official Zoning Map determines whether your parcel qualifies.

What lot coverage counts as “covered” in Claremont?

Lot coverage includes all roofed/covered areas such as buildings, carports, covered patios and decks more than 3 ft above grade; it does not include uncovered patios, driveways, pools, or uncovered decks less than 3 ft above grade. District chapters reiterate this (for example RS coverage rules in § 16.001.040.D).

If my house is nonconforming can I add on?

There are limits. Enlargements to nonconforming structures are restricted under Chapter 16.400; in RS/HC/AV districts limited additions may be permitted using existing setbacks for first‑floor additions in some situations, but second‑floor additions must meet current setbacks. Review § 16.400 before designing.

If I add an ADU, do district lot coverage and setback rules still apply?

Yes — ADUs must meet local ADU standards (§ 16.333) and the underlying district's development standards except where state ADU law limits local control. Claremont allows ADUs consistent with state law; consult the Claremont ADUs page and § 16.333.

What counts toward FAR on an institutional campus?

Institutional FAR counts the total floor area of the campus divided by the project site area; certain open spaces and subterranean parking not extending above grade are excluded in the campus lot coverage/FAR calculations. See § 16.069.070–080.

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