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Chapter 18.156

Article VII — SECOND RESIDENTIAL DWELLING UNITS

Redlands Zoning Code · 2026-06 edition · updated 2026-07-06 · Redlands

18.156.430: PURPOSE OF PROVISIONS:

The purpose of this article is to establish the procedure for permitting a second residential dwelling unit on lots zoned for residential uses. (Ord. 2533 § 1, 2003)

18.156.440: SECOND UNIT DEFINED:

"Second unit" means a detached or attached residential dwelling unit which provides complete, independent living facilities for one or more persons, inclusive of, but not limited to, permanent provisions for living, sleeping, eating, cooking, and sanitation on the same lot as a singlefamily dwelling is situated. A second unit also includes an efficiency unit as defined in California Health and Safety Code section 17958.1, and a manufactured home as defined in California Health and Safety Code section 18007. (Ord. 2533 § 1, 2003)

18.156.450: APPROVAL REQUIRED:

Application for construction of a second unit shall be made in the form of a site plan, floor plan and building elevations and shall be granted by the city's community development director provided the application meets the provisions of this article. The application must demonstrate compliance with the following criteria:

  • A. The second unit is located on property zoned for single-family or multi-family use.

  • B. The lot contains an existing single-family dwelling.

  • C. The square footage for the second unit does not exceed the following standards:

  1. The total area of floor space for a detached second unit shall not exceed one thousand two hundred (1,200) square feet.

  2. The increased floor area for an attached second unit shall not exceed thirty percent (30%) of the existing living area of the primary unit.

D. The second unit is either attached to the existing dwelling and located within the living area of that dwelling (which means the interior habitable area of a dwelling unit including basements and attics, but not including a garage or an accessory structure) or is a detached unit located on the same lot as the existing dwelling.

E. The second unit is not intended for sale and may be rented.

F. The second unit complies with city requirements relating to height, setback, lot coverage, architectural review and maximum size of the unit.

G. The second unit complies with standards that prevent adverse impacts on any real property that is listed in the California register of historic places. (Ord. 2533 § 1, 2003)

18.156.460: PROPERTY DEVELOPMENT STANDARDS:

A. The lot upon which the second unit is proposed shall conform to the minimum area and dimension standards of the zoning district in which the lot is located.

B. One parking space shall be provided on the same lot as the second unit, in addition to the required parking spaces serving the primary unit. Tandem parking is permissible to satisfy the parking requirement for the second unit.

C. The second unit shall be provided with a separate outside entrance not visible from the street, with adequate pedestrian access from a public street to the entrance.

  • D. All second units shall comply with the standards of an efficiency dwelling unit as defined by the uniform building code.

  • E. The second unit shall be located to the rear of the primary unit. (Ord. 2743, 2010)

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▸ Contents — Redlands Zoning Code
Redlands Zoning Code
  1. Chapter 18.04
  2. Chapter 18.08
  3. Chapter 18.16
  4. Chapter 18.18
  5. Chapter 18.24
  6. Chapter 18.28
  7. Chapter 18.29
  8. Chapter 18.32
  9. Chapter 18.33
  10. Chapter 18.36
  11. Chapter 18.40
  12. Chapter 18.44
  13. Chapter 18.48
  14. Chapter 18.52
  15. Chapter 18.56
  16. Chapter 18.60
  17. Chapter 18.64
  18. Chapter 18.68
  19. Chapter 18.76
  20. Chapter 18.80
  21. Chapter 18.82
  22. Chapter 18.84
  23. Chapter 18.88
  24. Chapter 18.92
  25. Chapter 18.96
  26. Chapter 18.100
  27. Chapter 18.104
  28. Chapter 18.108
  29. Chapter 18.112
  30. Chapter 18.116
  31. Chapter 18.120
  32. Chapter 18.124
  33. Chapter 18.128
  34. Chapter 18.132
  35. Chapter 18.138
  36. Chapter 18.140
  37. Chapter 18.144
  38. Chapter 18.148
  39. Chapter 18.152
  40. ▸ Chapter 18.156
    Overview
    1. Article I — ADAPTIVE REUSES IN HISTORICALLY SIGNIFICANT HOMES
    2. Article II — AUTOMOBILE SERVICE STATIONS
    3. Article III — BED AND BREAKFAST INNS
    4. Article V — DRIVE-THROUGH RESTAURANTS AND SERVICES
    5. Article VI — NONRESIDENTIAL USES IN A RESIDENTIAL BUILDING
    6. Article VII — SECOND RESIDENTIAL DWELLING UNITS
    7. Article VIII — FAMILY DAYCARE HOMES
    8. Article IX — AUTOMOBILE SALES DEVELOPMENT STANDARDS
    9. Article X — PRIVATE RESIDENTIAL SPORTS AND RECREATION COURTS
    10. Article XI — RECYCLING CENTERS
    11. Article XII — WAREHOUSES AND LOGISTICS DISTRIBUTION CENTERS
    12. Article XIII — LOW-BARRIER NAVIGATION CENTERS
    13. Article XIV — FARMWORKER HOUSING STANDARDS
    14. Article XV — SINGLE ROOM OCCUPANCY FACILITIES
    15. Article XVI — TWO-UNIT PROJECTS ON RESIDENTIAL PARCELS
  41. Chapter 18.160
  42. Chapter 18.164
  43. Chapter 18.168
  44. Chapter 18.172
  45. Chapter 18.176
  46. Chapter 18.178
  47. Chapter 18.180
  48. Chapter 18.184
  49. Chapter 18.188
  50. Chapter 18.190
  51. Chapter 18.192
  52. Chapter 18.193
  53. Chapter 18.194
  54. Chapter 18.195
  55. Chapter 18.196
  56. Chapter 18.200
  57. Chapter 18.204
  58. Chapter 18.208
  59. Chapter 18.212
  60. Chapter 18.216
  61. Chapter 18.224
  62. Chapter 18.228
  63. Chapter 18.230
  64. Chapter 18.266

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