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HomeMy WebLinkAboutPARAGON POINT PUD PHASE TWO FINAL - 48 91D - REPORTS - RECOMMENDATION/REPORT W/ATTACHMENTSITEM NO. 3 MEETING DATE i () /moo ` STAFF Ted Shepard PLANNING AND ZONING BOARD STAFF REPORT PROJECT: Paragon Point, Phase Two, Final P.U.D., #48-91D APPLICANT: Trustar, Inc. c/o Jim Sell Design 117 East Mountain Avenue Fort Collins, CO 80524 OWNER: Trustar, Inc. c/o Byron Collins #1 Old Town Square Fort Collins, CO 80524 PROJECT DESCRIPTION: This is a request for Final P.U.D. for 36 single family lots on 15.64 acres, located north of Trilby Road, east of South Lemay Avenue and directly south of Paragon Point Phase One. The parcel is zoned r-1-p, Low Density Planned Residential. RECOMMENDATION: Approval with Condition EXECUTIVE SUMMARY: The request for Final P.U.D. reflects the variance granted at Preliminary to allow less than three dwelling units per acre. Similarly, a variance to allow less than 65% of the lots to be within the specifications for solar orientation was also granted at Preliminary. The condition of approval pertaining to the Fossil Creek streambank stabilization study has been completed to the satisfaction of the Stormwater Utility. A segment of the Fossil Creek Recreational Trail will be dedicated as an easement by separate instrument along with this filing. An internal path will connect Southridge Greens Boulevard to future Recreational Trail by spanning Fossil Creek. Southridge Greens Boulevard will be extended to Trilby Road. The Final P.U.D. satisfies the All Development Criteria of the L.D.G.S. and is in substantial conformance with the Preliminary P.U.D. There is one condition of approval relating to execution of the development agreement. COMMUNITY PLANNING AND ENVIRONMENTAL SERVICES 281 N. College Ave. P.O. Box 580 Fort Collins, CO 80522-0580 (303) 221-6750 PLANNING DEPARTMENT Paragon Point, Phase Two, PUD - Final, #48-91C October 19, 1992 P & Z Meeting Page 2 COMMENTS: 1. Background: The surrounding zoning and land uses are as follows: N: r-1-p; Paragon Point Phase One, golf course, single family S: r-1-p; Vacant (Stanton Creek Ridge P.U.D.) E: FA-1 (County); Vacant W: r-1-p; Fossil Creek, open space (Paragon Point Tracts C and H) Paragon Point Overall Development Plan was approved in December of 1991. The Final P.U.D. for Phase One, with the Natural Resource Management Plan, was approved on March 23, 1992. A replat of Lots 5 and 13, and a portion of Southridge Greens Boulevard was also approved on March 23, 1992. The Preliminary P.U.D. for Paragon Point Phase Two was approved on August 24, 1992. 2. Land Use: During the deliberation of the Preliminary P.U.D., the Planning and Zoning Board granted a variance to allow a residential density of 2.30 dwelling units per acre, which is below the required minimum of three dwelling units per acre. The variance was found to be justified based on a significant portion of the gross acreage being undevelopable due to the Fossil Creek floodplain and steep slopes. The request for 36 single family lots on 15.64 acres, at 2.30 dwelling units per acre, was reviewed by the criteria of the Residential Uses Point Chart of the L.D.G.S. The project earns 30% with points awarded for proximity to a community park and for contiguity to existing urban development. 3. Solar Orientation: As a Preliminary P.U.D., Paragon Point Phase Two was granted a variance by the Planning and Zoning Board for having less than 65% of the lots oriented to within 30 degrees of a true east -west line. The variance was granted based on north -south orientation of the site with additional constraints imposed by the Union Pacific Railroad on the east, and Fossil Creek, steep slopes, and rock outcroppings on the west. Also, the extension of Southridge Greens Boulevard predetermined the north -south orientation of the street system. Paragon Point, Phase Two, PUD - Final, #48-91C October 19, 1992 P & Z Meeting Page 3 4. Condition of Preliminary Approval: Stream Stabilization Study The condition of approval at the Preliminary stage required that the applicant complete a stream bank stabilization study for Fossil Creek for its entire length through both Filings One and Two. This study, entitled Fossil Creek Stability Study, was submitted to the City of Fort Collins Stormwater Utility and has been found acceptable for approving Paragon Point, Phase Two, P.U.D. The primary result of the study is to identify and describe an erosion buffer zone. Within this buffer zone, structures will be prohibited. The study concludes that there will some minor shifting of the stream channel and modifications to the existing, meandering bends between Lemay Avenue and Trilby Road. In particular, this shifting is expected to impact the west bank, not the east bank. This evolution of the stream channel is recommended to continue to occur naturally, within the limits of the erosion buffer zone, without constructing major erosion control devices. If the channel begins to meander outside the erosion buffer zone, then the study recommends a range of implementation techniques to control erosion. As the primary reviewing agency, the City of Fort Collins Stormwater Utility finds that the Fossil Creek Stabilization Study satisfies the condition of approval that this section of the stream be analyzed. The recommendations will be implemented and the erosion buffer area will be included as part of the Utility Plans on record with the City of Fort Collins. 5. Transportation: Southridge Greens Boulevard will be completed to Trilby Road with Phase Two. This will allow two points of public access for both filings of Paragon Point and Greenridge P.U.D. located to the north. Southridge Greens Boulevard will be constructed to the full local street standard of 36 feet of pavement on a 54 foot wide right-of-way. A segment of the City's Fossil Creek Recreational Trail will traverse the site on the west side of Fossil Creek within the area of the 100-year floodplain. A trail easement will be dedicated by separate legal instrument since the area has already been platted. The Parks and Recreation Department has identified this segment as a key link in a trail that will run from the western edge of the City to Fossil Creek Reservoir. A similar easement was granted in Brittany Knolls Filing Two. Paragon Point, Phase Two, PUD - Final, #48-91C October 19, 1992 P & Z Meeting Page 4 A path and bridge will connect Southridge Greens Boulevard to the future Fossil Creek Trail along the shared property line by Lots 21, 22, and 36. This path will span Fossil Creek with a bridge that will be designed to respect the limitations identified by the Fossil Creek Stability Study, as well as the restrictions of the 100-year floodplain. This connection has been reviewed and approved by both the Stormwater Utility and Parks and Recreation. Such a connection will provide an opportunity for the Fossil Creek Recreational Trail to loop back to the north, via Southridge Greens Boulevard, until such time as the Trail is extended past Trilby Road. RECOMMENDATION: Staff finds that the request for Final P.U.D. for Paragon Point Phase Two satisfies the All Development Criteria of the L.D.G.S. and is in substantial conformance with the Preliminary P.U.D. The condition of approval regarding the Fossil Creek stream bank stabilization study has been submitted, reviewed, and found satisfactory by the appropriate City departments. Staff, therefore, recommends approval of Paragon Point Phase Two, Final P.U.D., #48-91D, subject to the following condition: 1. The Planning and Zoning Board approves this planned unit development final plan upon the condition that the development agreement, final utility plans, and final P.U.D., plans for the planned unit development be negotiated between the developer and City staff and executed by the developer prior to the second monthly meeting (December 17, 1992) of the Planning and Zoning Board following the meeting at which this planned unit development final plan was conditionally approved; or, if not so executed, that the developer, at said subsequent monthly meeting, apply to the Board for an extension of time. The Board shall not grant any such extension of time unless it shall first find that there exists with respect to said planned unit development final plan certain specific unique and extraordinary circumstances which require the granting of the extension in order to prevent exceptional and unique hardship upon the owner of developer of such property and provided that such extension can be granted without substantial detriment to the public good. If the staff and the developer disagree over the provisions to be included in the development agreement, the developer may present such dispute to the Board for resolution if such presentation is made at the next succeeding or second succeeding monthly meeting of the Board. The Board may table Paragon Point, Phase Two, PUD - Final, #48-91C October 19, 1992 P & Z Meeting Page 5 any such decision, until both the staff and the developer have had reasonable time to present sufficient information to the Board to enable it to make its decision. (If the Board elects to table the decision, it shall also extend the term of this condition until the date such decision is made). If this condition is not met within the tim established herein (or as extended, as applicable), then the final approval of this planned unit development shall become null and void and of no effect. The date of final approval for this planned unit development shall be deemed to be the date that the condition is met, for purposes of calculating the running of time for the filing of an appeal pursuant to Chapter 2, Article II, Division 3, of the City Code, the "final decisions, of the Board shall be deemed to have been made at the time of this conditional approval; however, in the event that a dispute is presented to the Board for resolution regarding provisions to be included in the development agreement, the running of time for the filing of an appeal of such "final decision" shall be counted from the date of the Board's decision resolving such dispute. Trip N by' P ORTNER rip RESERVOIR \� i i f .r � 1 Ir 1 1 1 ' 1 1 1 uj rip rip PARAGON POINT PUD, Ph II it ITEM: Final NUMBER: 48-91 D No Text Both qualitative and quantitative channel stability analyses were completed during the course of this study to evaluate and characterize the stability of the Fossil Creek channel between Trilby Road and Lemay Avenue. In addition, various bed and bank stabilization alternatives were presented as possible improvement options in the event stabilization efforts are found to be necessary within the study reach. The results of the study indicated that with respect to bed level fluctuations the Fossil Creek channel within the study reach is relatively stable with minimal potential for significant downcutting of the bed. This condition is primarily a result of both the presence of man-made grade controls and a high potential for armoring of the channel bed. In light of this result, it is generally recommended that additional grade controls not be placed within the study reach. Because of the geomorphic setting and hydraulic conditions, artificially holding the bed at or above grade may exacerbate upstream channel widening and bank erosion. If natural or man-made processes result in channel straightening in the reach, grade controls may considered if general scour is observed; however, the high potential for armoring would likely inhibit significant channel downcutting. The results of the bank stability analysis indicated that within Paragon Point the potential for bank failure varies from the east to west bank. Along the east side of the channel, against the bluff, the critical bank heights tend to be greater and the stable bank slopes tend to be steeper than on the west side. In addition, there is greater potential for the channel to migrate to the west than into the bluff to the east. The analysis of historical aerial photographs demonstrated that, in the locations with the highest banks, the current channel alignment is at its eastern -most position of the last 40 years. The general tendency at the present time is for the channel to migrate to the west. The consequence of these observations and results is that a wider erosion buffer limit is generally provided along the east side of the channel. Specific bank erosion protection measures are not recommended at this time; however, if property or structures become endangered by bank erosion, the protection measures presented in Chapter IV provide several alternatives for stabilizing either portions of or entire banks as required. 73