Eureka · Land use · Single-family home
Where is a single-family home allowed in Eureka?
In Eureka, a single-family home is allowed in 12 base zones (RE, R1, R2, R3, DT and 7 more, 4 with a condition), needs a conditional use permit in 1 (HM) and not allowed in 1 (Eureka use tables, read October 2026).
Key points
- Allowed: RE, R1, R2, R3, DT, DW, SC, HC and 4 more
- Needs a permit: HM
- Not allowed: NR
Find your lot's zone on the city zoning map, then read its row. Every status below was read from the Eureka Municipal Code use tables (read October 2026). Base zones only. General information, not legal advice — check with the city before you apply.
Zones where a single-family home can go
Eureka's code calls this use “Single-family home, detached (new)”. Each row links to the use table it comes from. A zone marked “see note” has a condition in the code, for example upper floors only or a larger lot.
| Zone | Status | Code |
|---|---|---|
| RE Residential Estate | Allowed — see note Note 1: Up to four dwelling units are allowed on one lot in the RE and R1 zoning districts: one single-family home and up to three of the following: a second single-family home (attached or detached); two accessory dwelling units (attached or detached); and/or one junior accessory dwelling unit. Lots resulting from an urban lot split subdivision (§ 155.332.030 ) are only allowed three dwelling units: one single-family residence, one junior accessory dwelling unit and either one additional single-family residence or one accessory dwelling unit. | § 155.204.020 |
| R1 Residential Low | Allowed — see note Note 1: Up to four dwelling units are allowed on one lot in the RE and R1 zoning districts: one single-family home and up to three of the following: a second single-family home (attached or detached); two accessory dwelling units (attached or detached); and/or one junior accessory dwelling unit. Lots resulting from an urban lot split subdivision (§ 155.332.030 ) are only allowed three dwelling units: one single-family residence, one junior accessory dwelling unit and either one additional single-family residence or one accessory dwelling unit. | § 155.204.020 |
| R2 Residential Medium | Allowed — see note Note 2: Allowed only on lots 3,000 square feet or less; or if an existing dwelling unit that is part of a multi-family dwelling becomes a single-family residence as a result of a subdivision; or on a lot with a non-residential primary use (i.e., in combination with another primary use on the same lot). | § 155.204.020 |
| R3 Residential High | Allowed — see note Note 2: Allowed only on lots 3,000 square feet or less; or if an existing dwelling unit that is part of a multi-family dwelling becomes a single-family residence as a result of a subdivision; or on a lot with a non-residential primary use (i.e., in combination with another primary use on the same lot). | § 155.204.020 |
| DT Downtown | Allowed | § 155.208.020 |
| DW Downtown West | Allowed | § 155.208.020 |
| SC Service Commercial | Allowed | § 155.208.020 |
| HC Henderson Center | Allowed | § 155.208.020 |
| NC Neighborhood Commercial | Allowed | § 155.208.020 |
| WA Wabash Avenue | Allowed | § 155.208.020 |
| OR Office Residential | Allowed | § 155.208.020 |
| A Agricultural | Allowed | § 155.220.020 |
| HM Hospital Medical | Needs a conditional use permit | § 155.208.020 |
Zones where it is not allowed
NR.
What else applies
- Standards for this use: Section 155.204.040 (cited in the table; section not in packet).
- Residential table: Single-family home, detached (existing) is P in all four zones. Mixed-use table: Single-family detached home, existing is P in all eight zones (note 8: reconstruction after damage). Resource table row is Single-family detached home (A P, NR -). Attached townhomes are a separate row.
- State law: State law lets most single-family lots add an ADU and a JADU (California ADU law) and a second home or a lot split under SB 9 (Gov. Code § 65852.21).
- Not covered here: Coastal zoning (Chapter 156) not read; Old zoning regulations (155.098, 155.099) in the packet are the superseded code and were not used; Cells for zones whose table does not list the use are left out. Overlay zones and specific plans can also change the answer.
Other uses in Eureka
Who this affects
Frequently asked questions
Can I have a single-family home in the HM zone in Eureka?
Only with a conditional use permit. Eureka's use table lists it that way in HM (Hospital Medical) (§ 155.208.020).
Can I have a single-family home in the NR zone in Eureka?
No. Eureka's use table does not allow it in NR (Natural Resource) (§ 155.220.020).
Can I have a single-family home in the RE zone in Eureka?
Yes, with a condition. Eureka's use table lists it as allowed in RE (Residential Estate) (§ 155.204.020). The code adds a condition: “Up to four dwelling units are allowed on one lot in the RE and R1 zoning districts: one single-family home and up to three of the following: a second single-family home (attached or detached); two accessory dwelling…”
General information, not legal advice.
Ask about a single-family home at an address in Eureka
Ask GoCodebook what the zoning at a specific address allows and get an answer that cites the section.
Ask your question