§131.0250 Allowable Development Area in OR Zones

• (a) Within the OR-1-1 zone, up to 25 percent of the premises may be developed subject to the following:

  • (1) If 25 percent or more of the entire site is not in its natural state due to existing development , any new development proposed shall occur within the disturbed portion of the site and no additional development area is permitted.

  • (2) If the OR-1-1 zone applies only to a portion of a premises , the following regulations apply:

    • (A) If less than 25 percent of the premises is outside the OR-1-1 zone, the portion that is outside the OR-1-1 zone shall be developed before any encroachment into the OR-1-1 zoned portion. Encroachment into the OR-1-1 zone may be permitted to achieve a maximum development area of 25 percent of the entire site. See Diagram 131-02A.

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Diagram 131-02A Allowable Development Area with Encroachment Into OR-1-1 Zone

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Other Zone OR-1-1 Zone
A B
Area left in natural s tate
'A' = Area outs ide OR-1-1 Zone
mus t be dev eloped prior to
enc roac hment into OR-1-1 Zone
'B = amount of enc roac hment into OR-1-1 Zone is
'A' + 'B'= Allowable dev elopment
only the minimum nec es s ary to ac hiev e a
area (max 25% of entire premis es ) dev elopment area of 25% or entire premis es
----- End of picture text -----

• (B) If more than 25 percent of the premises is outside the OR-1-1 zone, the area outside the OR-1-1 zone may be developed and no additional development area is permitted. See Diagram 131-02B.

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Diagram 131-02B

Allowable Development Area Without Encroachment into OR-1-1 Zone

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Other Zone OR-1-1 Zone
Area left in
natural state
NOTE: No encroachment into the OR-1-1
Allowable development area outside Zone since more than 25% of entire
OR-1-1 Zone (equal to or greater than 25% of the Premises is outside OR-1-1 Zone
entire premises)
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• (3) Within the Coastal Overlay Zone, only uses identified in Section 143.0130 (d) and (e) shall be permitted within wetlands subject to the provisions of Section 143.0141 (a) and (b).

• (4) Within the Coastal Overlay Zone, coastal development on premises with steep hillsides containing sensitive biological resources , or mapped as Viewshed or Geologic hazard on Map C-720, is subject to the encroachment limitations set forth in Section 143.0142(a).

• (b) A premises within the OR-1-2 zone, within or partially within the MHPA is subject to the following regulations:

  • (1) If the premises is located entirely within the boundary of the MHPA , a maximum of 25 percent of the site may be developed. See Diagram 131-02C.

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Diagram 131-02C

Allowable Development Area Entirely Within MHPA

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Outside MHPA Inside MHPA
Area left in
natural state
Maxium allowable development area
(25% of entire premises)
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• (2) If the premises is located partially within the boundary of the MHPA , any development proposed must occur on the portion of the premises not within the MHPA . See Diagram 131-02D. If the portion of the premises not within the MHPA is greater than 25 percent of the premises area, the allowable development area may include all of the area outside of the MHPA , except as limited by Sections 143.0141(b) and (g) and 143.0142(a)(2).

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Diagram 131-02D

Allowable Development Area without Encroachment into MHPA

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Outside MHPA Inside MHPA
Area left in
natural state
NOTE: No encroachment into MHPA
since more than 25% of entire
Allowable development area outside MHPA site is outside MHPA
(equal to or greater than 25% of the entire premises)
(3) If the portion of the premises not within the MHPA boundary is less
than 25 percent of the premises area, encroachment into the MHPA
may be permitted to achieve a maximum development area of 25
percent of the premises . See Diagram 131-02E.
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Diagram 131-02E

Allowable Development Area with Encroachment Into MHPA

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Outside MHPA Inside MHPA
'A'= Allowable developm ent 'B' = Am ount of encroachment into MHPA is only the minimum
area outside of MHPA necessary to achieve a development area of 25% of entire premises
‘A’ ‘B’ Area left in natural state
'A' + 'B' = Allowable development area
(max 25% of entire premises)
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• (4) Up to 5 percent of additional development area is permitted to accommodate essential public facilities only, as identified in the applicable land use plan as long as the total development area does not exceed 30 percent of the premises . This additional development area shall require mitigation.

• (5) The allowable development area shall be 1 acre for a premises with a total area of less than 4 acres provided the width of the MHPA is at least 1,000 feet where the premises is located. Mitigation will be required for any impacts from development in excess of 25 percent of the premises area.

• (6) The portions of the premises within the MHPA that are not included in the allowable development area shall be maintained in their natural state and may be used only for passive uses consistent with the Multiple Species Conservation Program .

• (7) Development within the OR-1-2 zone is subject to Chapter 14, Article 3, Division 1 (Environmentally Sensitive Lands Regulations) and the Biology Guidelines in the Land Development Manual.

• (8) Any development within the MHPA shall occur in the least sensitive areas first, in accordance with the Biology Guidelines in the Land Development Manual.

• (9) Any exception to the allowable development area regulations in this section is subject to Section 143.0150.

• (10) Within the Coastal Overlay Zone, only uses identified in Section 143.0130 (d) and (e) shall be permitted within wetlands subject to the provisions of Section 143.0141 (a) and (b).

• (11) Within the Coastal Overlay Zone, coastal development on premises with steep hillsides containing sensitive biological resources , or mapped as Viewshed or Geologic hazard on Map C-720, is subject to the encroachment limitations set forth in Section 143.0142(a).

(Amended 6-12-2001 by O-18948 N.S.; effective 12-12-2001.)

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EDITORS NOTE: The Land Development Manual includes:

Coastal Bluffs and Beaches Guidelines Biology Guidelines Historical Resources Guidelines

Submittal Requirements for Deviations within the Coastal Overlay Zone

See RR-292248 for the Coastal Bluffs and Beaches Guidelines of the Land Development Code; RR-292249 for the Biology Guidelines of the Land Development Code; RR-292250 for the Historical Resources Guidelines of the Land Development Code; RR-292251 for the Submittal Requirements for Deviations within the Coastal Overlay Zone of the Land Development Code.