Local zoning · Lompoc

Lompoc — Development Standards

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

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Last reviewed: July 2, 2026

Overview

This page summarizes the City of Lompoc's development standards under Title 17 (Zoning), focusing on setbacks, height, lot coverage, density, and FAR as written in the Lompoc Zoning Code. It synthesizes the rules by zone, explains common exceptions (encroachments, overlays, PD), and points to related processes (design review, parking, variances). The ordinance text referenced below is the controlling authority; check parcel‑specific conditions with the City for final determinations.

When reading the summaries below, note that the Code uses tabular standards (e.g., Table 17.208.040.A, Table 17.220.040.A, Table 17.216.040.A) and cross‑references to other chapters for accessory structures, parking, landscaping, and review procedures: see § 17.208.040, § 17.220.040, § 17.216.040, and related sections.

Note: the page links relevant related topics inline the first time they appear — for parking, design review, overlays, ADUs, the state building code, landscaping, signage, and variances — so you can jump to those topic pages for procedural detail: Lompoc Parking, Lompoc Design Review, Lompoc Overlay Districts, Lompoc ADUs, California Building Standards Code, Lompoc Landscaping and Screening, Lompoc Signage, Lompoc Variances and Exceptions.

How the code measures and where to look first

  • Measurements and encroachments: setback measurement rules and allowed projections (eaves, porches) are in § 17.304.040 and Figure 17.304.030.1; these govern how far certain features may intrude into required yards.
  • Height measurement and limits are defined in § 17.304.070 (measurement from finished grade to highest point).
  • Development standards are given zone-by-zone in Division 2; for each zone the controlling table is named in the Code (e.g., Table 17.208.040.A for Residential zones). See § 17.208.040, § 17.220.040, § 17.216.040 for the specific tables.

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

Note: every numeric standard below is taken from the City tables and referenced to the controlling section. Where the table uses “refer to base zone / Preliminary Development Plan” or omits a value, I note that explicitly.

Residential Zones (overview)

The Residential table is Table 17.208.040.A. The general purpose is to regulate single‑family, duplex and multi‑family densities, lot sizes, setbacks, heights and lot coverage for the City's principal residential zones. See § 17.208.040 for the full table.

  • RA (Rural/Agricultural)

    • Purpose / uses: low‑density residential and agricultural uses (see allowed uses in Division 2). See § 17.208.040.
    • Key standards: Lot area min 20,000 s.f.; front setback 20 ft; side setback = 10% of lot width (min 5 ft, max 10 ft); rear setback 15 ft; height max 35 ft or 2 stories. See § 17.208.040.

  • 10‑R‑1 (Single‑Family — 10,000 sf lots)

    • Purpose / uses: traditional single‑family detached on larger urban lots. See § 17.208.040.
    • Key standards: Lot area min 10,000 s.f.; front setback 15 ft; side interior typical 5 ft (see table for percentages); rear setback 5 ft (1‑story), 10 ft (2‑story); height max 30 ft; accessory building height 20 ft; lot‑width min 75 ft; see § 17.208.040.

  • 7‑R‑1 (Single‑Family — 7,000 sf lots)

    • Purpose / uses: smaller lot single‑family neighborhoods. See § 17.208.040.
    • Key standards: Lot area min 7,000 s.f.; front setback 15 ft; side setbacks and height max 30 ft; see § 17.208.040.

  • R‑2 (Two‑family / small multifamily)

    • Purpose / uses: duplexes, small multifamily. See § 17.208.040.
    • Key standards: Lot area min 6,000 s.f.; front setback 15 ft; side setback 5 ft; rear setback 10 ft; height max 30 ft; lot coverage max 60%; min landscaped open area 300 s.f./unit; density 2.5–6.2 du/net acre depending on GP subcategory (see table and notes). See § 17.208.040.

  • R‑3 (Multifamily)

    • Purpose / uses: multifamily apartment sites. See § 17.208.040.
    • Key standards: Lot area min 7,000 s.f.; front setback 15 ft; side setback 5 ft; rear 10 ft; height max 35 ft; lot coverage max 70%; landscaped open area min 250 s.f./unit; density max 14.5 du/net acre. See § 17.208.040.

  • MH (Mobile Home Park)

    • Purpose / uses: manufactured/mobile home parks; lot area and other site rules are specific — see § 17.208.040.

(Full numeric table is in Table 17.208.040.A, see § 17.208.040.)

Quick residential reference table (decision‑relevant)

Zone Front (min) Side (min) Rear (min) Height max (primary) Lot coverage / FAR / Density Code Reference
RA 20 ft 10% of lot width (min 5 ft, max 10 ft) 15 ft 35 ft / 2 stories Lot area 20,000 s.f. § 17.208.040
10‑R‑1 15 ft 5 ft (typical) 5 ft (1‑story) / 10 ft (2‑story) 30 ft Lot area 10,000 s.f.; width 75 ft § 17.208.040
7‑R‑1 15 ft 5 ft 10 ft 30 ft Lot area 7,000 s.f. § 17.208.040
R‑2 15 ft 5 ft 10 ft 30 ft Lot coverage 60%; density varies § 17.208.040
R‑3 15 ft 5 ft 10 ft 35 ft Lot coverage 70%; density up to 14.5 du/acre § 17.208.040

Mixed Use, Public Facility, and Open Space Zones

See Table 17.220.040.A and § 17.220.040 for these zones. Key points: MU allows taller 45 ft buildings and higher residential density (up to 44 du/net acre in some cases); PF (Public Facility) and OS (Open Space) have specific setbacks and PF often requires a 15 ft front setback when adjacent to residential. FAR and mixed‑use rules are stated in the table: commercial FAR 0.75 (all commercial) and mixed‑use 1.5 if at least 75% of area is residential — see § 17.220.040.

  • MU: Height max 45 ft, density max 44 du/net acre, FAR and mixed‑use rules in § 17.220.040.

Industrial Zones (I and BP)

See Table 17.216.040.A and § 17.216.040. Typical industrial standards: height max 35 ft, I zone lot area min 7,000 s.f., BP (business park) lot area 2 acres min with setback and landscape buffers when adjacent to residential; FAR 0.75 is cited for industrial uses. Note airport proximity exceptions reduce heights adjacent to Lompoc Airport in BP to 18 ft in some areas — see § 17.216.040 and its notes.

Planned Development (PD) Overlay and Airport Overlay (AO)

  • Planned Development (PD): many PD standards say “Refer to base zone or approved Preliminary Development Plan” — i.e., dimensional standards are project‑specific and established by the PD approval (Table notes and § 17.224.050). For PD parcels the controlling standards may be the Preliminary Development Plan. § 17.224.050 discusses PD additional standards.
  • Airport Overlay (AO): the AO imposes precise height limits near the airport: a clear zone limit of 15 ft above airport elevation, and approach zone up to 150 ft above the same datum; it also restricts lighting and reflective uses — see § 17.224.050.A. Projects in AO require Airport Land Use Commission review.

Encroachments, accessory buildings, spacing and exceptions

  • Allowed encroachments (eaves, porches, stairs) into setbacks are in § 17.304.040 (Table 17.304.040.A). Examples: front/rear porches may encroach up to 6 ft, eaves up to 2.5 ft, and there are R‑1‑specific side encroachment allowances. See § 17.304.040.
  • Accessory structures are controlled by § 17.304.020 (referenced repeatedly in the zone tables); accessory‑structure setbacks and lot coverage rules are cross‑referenced there. The file references this section but full text of § 17.304.020 was not fully included in the retrieved excerpts. Verify with the City for accessory structure technicals.
  • Minimum spacing between primary buildings: 10 ft between primary structures on the same lot; in wildland fire risk areas 60 ft unless additional mitigation is provided (see § 17.304.050).

How density and FAR are handled

  • Density is generally stated in dwelling units per net acre in each zone table (e.g., R‑3: 14.5 du/net acre). See zone tables in § 17.208.040 and § 17.220.040 for maximum/minimum densities.
  • FAR (Floor Area Ratio) is listed for commercial, mixed‑use and some industrial zones (e.g., commercial 0.75, mixed‑use 1.5 with conditions in § 17.220.040) and 0.75 in industrial I for certain uses (see Table 17.220.040.A and Table 17.216.040.A). For many residential zones the table shows lot coverage rather than an FAR value. See § 17.220.040 and § 17.216.040.

Related standards (apply to all zones)

  • Landscaping and screening standards: Chapter 17.312 and Title 15, Chapter 15.52 for water‑efficient landscapes (see cross‑references in zone tables). For landscape requirements see § 17.312 (referenced). Link: Lompoc Landscaping and Screening.
  • Parking is governed by Chapter 17.308 — check that chapter for vehicle parking counts and design. Link: Lompoc Parking. The zone tables repeatedly cross‑reference Chapter 17.308.
  • Signs and sign exceptions are in Chapter 17.316 (zones reference it). Link: Lompoc Signage.
  • Design review (Architectural Design and Site Development Review) is required for some uses and first developments in certain zones; see the table notes and Chapter 17.512 for procedure and thresholds. Link: Lompoc Design Review.
  • Nonconforming uses/structures are governed by Chapter 17.620 (the Code clarifies continuity and limits of retroactivity). Link: Lompoc Nonconforming Uses.
  • Variances, Minor Use Permits and other exceptions are handled in Division 5 (e.g., § 17.520 for Minor Use Permits and references to 17.508/17.520). Link: Lompoc Variances and Exceptions.
  • ADUs: Local ADU rules are cross‑tied to state law. Lompoc code references accessory units in definitions and technical sections; for state‑level mandatory ADU allowances see the California ADU summary in the uploaded ADU handbook (not Lompoc code text). Link: Lompoc ADUs and California ADU law.

Checklist — what an applicant must satisfy (high‑level)

  • Confirm the property's base zone and read the controlling table (e.g., § 17.208.040 for residential; § 17.220.040 for MU/PF/OS; § 17.216.040 for industrial).
  • Verify applicable overlays (PD, AO, etc.) and any overlay‑specific limits in § 17.224.050 (Airport Overlay specifics and PD cross‑references).
  • Check allowed projections/encroachments (eaves, porches) under § 17.304.040.
  • Ensure accessory building setbacks and lot‑coverage computations comply (see § 17.304.020 and zone tables for lot coverage). Verify full text of § 17.304.020 with the City.
  • Determine whether design review / Architectural Design and Site Development Review is required (see Chapter 17.512 and the table notes).
  • Confirm required parking per Chapter 17.308 and landscaping/screening per Chapter 17.312. Links: Lompoc Parking and Lompoc Landscaping and Screening.
  • If seeking deviations, prepare a variance/minor use/conditional use permit application and justify under the variance standards; see § 17.508, § 17.520 and the Variances page.

Risks & Ambiguities

Issue Why it matters What to verify
PD zones often say “Refer to base zone or Preliminary Development Plan” Dimensions and FAR for PD parcels are project‑specific — the table does not supply a fixed value. Confirm the PD’s approved Preliminary Development Plan or the PD ordinance language for exact setbacks/FAR/special conditions (see § 17.224.050)
Accessory structure rules are referenced but full text not in excerpts Accessory setbacks, size caps and lot‑coverage treatment affect garages, ADUs, sheds. Read § 17.304.020 in the full code and confirm with planner; if proposing an ADU, cross‑check state ADU rules (see CA ADU summary).
FAR not listed for many residential zones Residential tables emphasize lot coverage and density rather than providing an FAR number. This can affect mixed‑use/massing analysis. Use lot coverage and height limits in the residential table (§ 17.208.040) and ask the City how they prefer massing calculations for design review.
ADU-specific local adjustments vs. state law State ADU law places mandatory minimum allowances; local code may not be fully updated in text excerpts. Check City ADU rules and the state law summary; if conflict appears, the state ADU statute may control (see California ADU law summary).
Airport Overlay height datum and map references AO sets height limits relative to an airport elevation (datum). Parcel‑level limit depends on location within AO. Verify AO map and elevation datum in § 17.224.050.A and coordinate with Airport Land Use Commission clearance.

Plain‑English Summary

Lompoc's zoning tables in Title 17 set the basic limits you must design to: front/side/rear setbacks, maximum heights measured from finished grade, lot coverage percentages, and density caps by zone. Residential zones (RA, 10‑R‑1, 7‑R‑1, R‑2, R‑3) have explicit setbacks and height caps in § 17.208.040; mixed‑use, public facility, and industrial zones use their own tables (§ 17.220.040, § 17.216.040). Overlays (PD, AO) and accessory‑structure rules modify or replace base standards — always check the specific PD plan, AO limits, and accessory structure rules before final design.

Source References

  • Lompoc Zoning Code, Title 17 (short title, intent, applicability): § 17.104.010 – § 17.104.040.
  • Residential Zones Development Standards — Table 17.208.040.A: § 17.208.040 (RA, 10‑R‑1, 7‑R‑1, R‑2, R‑3, MH).
  • Other Zones Development Standards (MU, PF, OS) — Table 17.220.040.A: § 17.220.040.
  • Industrial Zones Development Standards — Table 17.216.040.A: § 17.216.040.
  • Planned Development and Airport Overlay additional standards — § 17.224.050 (PD and AO rules, airport height exceptions).
  • Setback encroachments and allowed projections — § 17.304.040 (Table 17.304.040.A).
  • Site requirements, spacing and wildland fire spacing — § 17.304.050.
  • Height measurement and limits — § 17.304.070.
  • Cross‑references to accessory structures, parking, landscaping, signs: § 17.304.020; Chapter 17.308 (Parking); Chapter 17.312 (Landscaping and Screening); Chapter 17.316 (Signs).
  • Design review and first‑development review references (Architectural Design and Site Development Review): Chapter 17.512 and table notes — see table notes in § 17.208.040 and related tables.
  • ADU/state context: 2025 California ADU handbook (state ADU rules summary — uploaded file).

Sources

Retrieved passages

  • Lompoc Zoning Code (§ 11) High relevance
  • Lompoc Zoning Code (Section 17.304.050.B.) High relevance
  • Lompoc Zoning Code (§ 11) High relevance
  • Lompoc Zoning Code (§ 11) High relevance
  • Lompoc Zoning Code (§ 11) High relevance
  • Lompoc Zoning Code (§ 17.104.030.) High relevance
  • Lompoc Zoning Code (§ 11) High relevance
  • Lompoc Zoning Code (§ 17.208.040.) High relevance

Cited sections

Frequently asked questions

What can I build on an R‑1 lot in Lompoc?

You build the uses allowed in the 10‑R‑1 or 7‑R‑1 zone as listed in Division 2; physically you must meet the dimensional rules in Table 17.208.040.A — e.g., front setback 15 ft, side setbacks ~5 ft, height max 30 ft, and minimum lot area/width as shown in § 17.208.040. Check design review triggers in the table notes.

What are Lompoc’s standard front/side/rear setback requirements?

Setbacks are zone specific. Typical single‑family setbacks shown in Table 17.208.040.A are front 15 ft, side ~5 ft (with percentage rules for some lots), and rear 10 ft; RA is larger (front 20 ft). Allowed projections (eaves, porches) are in § 17.304.040.

How does Lompoc measure building height?

Height is measured from finished grade adjacent to the building exterior to the highest point of the structure; the rule is in § 17.304.070 and each zone’s table lists the applicable maximum (e.g., 30 ft for many R‑1 zones, 35 ft for R‑3).

Where is FAR used in the Lompoc Code?

FAR is specified for commercial, mixed‑use and industrial tables (see Table 17.220.040.A and Table 17.216.040.A, e.g., commercial 0.75 and mixed‑use 1.5 under conditions). Many residential zones use lot coverage and density instead of an explicit FAR. See § 17.220.040 and § 17.216.040.

Do I need design review for a new residential building?

Possibly — the tables flag when the first development on a vacant site or a permitted use requires Architectural Design and Site Development Review by the Commission (see the notes to Table 17.208.040.A and Chapter 17.512). Check the specific table note for your zone in § 17.208.040.

Can porches or eaves project into required setbacks?

Yes — allowed projections are listed in § 17.304.040 (Table 17.304.040.A): porches/landings up to 6 ft into front/rear setbacks, eaves up to 2.5 ft, with some zone‑specific exceptions; see the table for full allowances.

What special rules apply near the Lompoc Airport?

The Airport Overlay (AO) restricts heights and certain uses (no illuminated signs, no reflective surfaces pointing to aircraft) and sets a clear zone height limit of 15 ft above the established airport elevation; consult § 17.224.050.A and secure Airport Land Use Commission clearance.

Are accessory units (ADUs) subject to local lot coverage or setback limits?

Local accessory structure rules are referenced in the code (see § 17.304.020), but state ADU law sets minimum allowances that can limit local restrictions. Check Lompoc’s ADU rules and the state ADU guidance; see the local cross‑references and the California ADU handbook for state rules.

How do I confirm the exact standards for a parcel in a PD or Specific Plan area?

PD parcels frequently have standards set by the approved Preliminary Development Plan rather than the base table (see § 17.224.050). Obtain the PD approval documents and the specific plan (if any) for the parcel to see the controlling setbacks, heights, lot coverage and FAR.

Where do I find parking and landscaping requirements for design submittal?

Parking is in Chapter 17.308 and landscaping/screening in Chapter 17.312; zone tables repeatedly cross‑reference these chapters — include the applicable parking and landscape plans when you submit for design review. Links: Lompoc Parking and Lompoc Landscaping and Screening. ---

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