Redding · Land use · Duplex
Where is a duplex allowed in Redding?
In Redding, a duplex is allowed in 1 base zone (RM, it with a condition), needs a site development permit in 1 (RS, it with a condition) and not allowed in 1 (Redding use tables, read October 2026).
Key points
- Allowed: RM
- Needs a permit: RS
- Not allowed: RE
Find your lot's zone on the city zoning map, then read its row. Every status below was read from the Redding 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 duplex can go
Redding's code calls this use “Two-Family Dwelling”. 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 |
|---|---|---|
| RM Residential Multiple-Family | Allowed — see note Note 3: Site development permit issued by the Director shall be required for development on all parcels within an "RM" District where said parcel was created by a subdivision of five or more parcels. Note 6: Site development permit issued by the Director shall be required for construction of any units on a parcel without public-street access. | § 18.31.020 |
| RS Residential Single-Family | Needs a site development permit — see note Note L1: Only in RS-3.5 and RS-4 with approval of a site development permit and when in character with the existing or proposed neighborhood and consistent with the general plan density for the subject property. Note 3: Site development permit issued by the Director shall be required for development on all parcels within an "RM" District where said parcel was created by a subdivision of five or more parcels. Note 6: Site development permit issued by the Director shall be required for construction of any units on a parcel without public-street access. | § 18.31.020 |
Zones where it is not allowed
RE.
What else applies
- In RS the duplex is allowed only in the RS-3.5 and RS-4 sub-districts (limitation L1); the RS cell must carry that note. Marks (3) and (6) are printed on the whole row; (3) and (6) name the RM district / parcels without street access.
- State law: SB 9 (Gov. Code § 65852.21) allows two homes on most single-family lots with a ministerial permit, also where this table says no.
- Not covered here: PD (Planned Development) district is named in the notes but its use table is not in the text; Zone sub-districts (RS-3, RS-3.5, RS-4, RM-6 to RM-30) share one column in the tables; only some limitations name them. Overlay zones and specific plans can also change the answer.
Other uses in Redding
Who this affects
Frequently asked questions
Can I have a duplex in the RS zone in Redding?
Only with a site development permit. Redding's use table lists it that way in RS (Residential Single-Family) (§ 18.31.020). The code adds a condition: “Only in RS-3.5 and RS-4 with approval of a site development permit and when in character with the existing or proposed neighborhood and consistent with the general plan density for the subject property. Site…”
Can I have a duplex in the RE zone in Redding?
No. Redding's use table does not allow it in RE (Residential Estate) (§ 18.31.020).
Can I have a duplex in the RM zone in Redding?
Yes, with a condition. Redding's use table lists it as allowed in RM (Residential Multiple-Family) (§ 18.31.020). The code adds a condition: “Site development permit issued by the Director shall be required for development on all parcels within an "RM" District where said parcel was created by a subdivision of five or more parcels. Site development permit…”
General information, not legal advice.
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