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(1) Lot Size Averaging. In approved subdivisions within the RS-20, RS-12, RS-1, R-1, R-2, R-3, and R-4 zoning designations, the individual lots shall be considered in compliance with the minimum site area requirements if the average of all of the lots within the proposed application are equal to or above the established minimum of the underlying zoning district. In addition, the following conditions must also be met:

(a) No individual lot shall be reduced by more than 20 percent from the minimum required lot size, except lots within one-quarter mile as measured through a public access or street centerline of an existing, planned or proposed public land for public use(s) which may be reduced up to 25 percent.

(b) Lands for public land use(s) shall be clearly identified and verified for use of the 25 percent reduction and shall include only the following:

(i) Fixed-route public transportation stops operated by Ben Franklin Transit or Amtrak;

(ii) Government buildings open to the public;

(iii) Public schools, colleges, and universities;

(iv) Parks, recreation, and designated pathways or trails in the Comprehensive Plan or Parks and Recreation Plan; or

(v) Medical care facilities:

(A) Hospitals offering 24/7 emergency service;

(B) Urgent care facilities; or

(C) Pharmacies.

(c) Lot size reductions under subsection (1)(a) of this section shall be compliant with the table below:

Zoning District

Minimum Lot Size – Current (sq. ft.)

20 Percent Reduction from Standard (sq. ft.)

25 Percent Reduction from Standard – ¼ (sq. ft.)

RS-20

20,000

16,000

15,000

RS-12

12,000

9,600

9,000

RS-1

10,000

8,000

7,500

R-1

7,200

5,760

5,400

R-2

5,000 (SF); 4,000 (MF)

4,000 (SF); 3,200 (MF)

3,750 (SF); 3,000 (MF)

R-3

4,500 (SF); 3,000 (MF)

3,600 (SF); 2,400 (MF)

3,375 (SF); 2,250 (MF)

R-4

4,000 (SF); 1,500 (MF)

3,200 (SF); 1,200 (MF)

3,000 (SF); 1,125 (MF)

(d) No more than a 40 percent increase over the minimum lot area for any individual lot shall be approved when the provisions of this section for lot size averaging are used, except where any such lot, due to unique topography, or geological or other physical features, would either be impractical or noncompliant with the provisions of PMC 21.20.040, such lot or lots may vary by up to 10 percent from the required frontage, width, and depth requirements as based upon any relevant information provided by applicant for review and acceptance by the City.

(e) No more than 75 percent of the total number of lots in a proposed application may contain an area less than the prescribed minimum for the underlying zoning district.

(f) The site area of any lot in excess of the required minimum lot size shall not be used to increase the overall density of further divisions of land, unless consistent with existing zoning or as may be amended. When recording any subdivision subject to lot size averaging, the developer must include a restrictive covenant in substantially the following form on the face of the plat:

NOTE: This subdivision includes lots created utilizing the lot size averaging under PMC 21.20.070. The site area of any lot in excess of the required minimum lot size shall not be used to increase the overall density of further divisions of land, unless consistent with existing zoning or as may be amended.

[Ord. 4522 § 2, 2021.]