Approval Letter CITY OF ClIANIIASSEN
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N HAS Chanhassen is a Community for Life-Providing for Today and Planning for Tomorrow
October 28, 2021
Level 7 Development
Attn: Mark Nordland
4600 Kings Point Road
Minnetrista, MN 55331
Re: Avienda Townhomes
Planning Case#2021-22
Dear Mr.Nordland:
This letter is to confirm that on October 25, 2021,the Chanhassen City Council adopted the following
motion:
"The Chanhassen City Council approves the Preliminary Plat for the Subdivision of 40+acres into 39 lots
and six(6)outlots, Avienda Townhomes. Plans prepared by Landform dated September 8, 2021, subject
to the conditions in the staff report and adopts the Findings of Fact and Recommendation."
Planning
1. Homes shall be constructed and designed consistent with the PUD.
2. Block 1, Lot 24, Block 2, Lot 9, and Block 3, Lot 9 shall be platted as outlots.
Engineering
1. All public utilities will require adequate drainage and utility easements(DUE)prior to approval
of the final plat. Staff recommends Block 1, Lot 24, Block 2, Lot 9 and Block 3,Lot 9 be outlots
and encumbered by public drainage and utility easements.
2. The applicant must provide the City the total area of right-of-way(ROW)being dedicated along
with the area of public DUE in square footage and per lot.
3. The plat shall be updated to maintain 10 feet of separation from the ROW and Block 1, Lot 1,
Block 2, Lot 8 and Lot 1.
4. Any previously recorded easements located within proposed public right-of-way or proposed
public DUE must be vacated prior to or concurrently with the final plat.
5. The applicant shall submit an updated existing conditions survey illustrating all of the
requirements of Sec. 18-40.
6. The existing overhead electrical lines and associated poles must be removed as soon as the
electric line is no longer required. The applicant shall supply an estimated timeline for when this
removal could occur.
7. The applicant shall provide street and utility profiles prior to final plat approval.
8. Emergency overflow elevations and routes along with lot benching details shall be submitted
prior to final plat approval.
9. Any grades over 3:1 on the proposed grading plan need to be indicated for review and approval
prior to final plat approval.
PH 952.227.1100• www.ci.chanhassen.mn.us• FX 952.227.1110
7700 MARKET BOULEVARD • PO BOX 147 • CHANHASSEN • MINNESOTA 55317
Avienda Townhomes - Planning Case 2021-22
October 28, 2021
Page 2 of 4
10. The applicant is required to provide an updated SWPPP for the proposed subdivision prior to
approval of final construction plans.
11. The applicant shall provide an erosion and sediment control plan in conformance with the
requirements listed under Sec. 19-145 of City Ordinance prior to the approval of final
construction plans.
12. The retaining wall north of Block 1, Lots 8-11 will be required to be privately owned and
maintained and the associated maintenance agreements must be recorded concurrently with the
final plat.
13. All newly constructed public streets(Mills Drive)will be publicly owned and maintained after
acceptance of the public improvements by the City Council.
14. Construction design elements associated with the street plans such as signage, striping, street
lights, intersection details,profiles, street radii,etc. will be required prior to final plat approval.
15. Any intersection of two streets must provide ADA curb ramps,which would include the
intersection of Avienda Parkway and "Private Drive NW"and Bluff Creek Boulevard and
"Private Drive S".
16. Any intersection of a private street with a public street must be constructed with a concrete apron
in general conformance with Detail Plate#5207.
17. The applicant will be required to provide design calculations and justification that the spacing of
the proposed intersection of Bluff Creek Boulevard and"Private Drive S" is in conformance with
MnDOT and National Cooperative Highway Research Program Report 672 design guidelines,or
provide justification that the impact is expected to be minimal and/or no reasonable alternatives
are available.
18. The final construction plans must be approved prior to recording of final plat.
19. All sanitary sewer and water mains will be publicly owned and maintained after acceptance of the
public improvements by the City Council.
20. An engineer's estimate for the cost of public improvements must be provided prior to approval of
the final plat.
21. The applicant will be required to enter into a Development Contract with the City and all
applicable securities and fees provided prior to recording of the final plat.
22. It is the applicant's responsibility to ensure that permits are received from all other agencies with
jurisdiction over the project(i.e. Army Corps of Engineers, DNR, MnDOT,Carver County,
RPBCWD,Board of Water and Soil Resources, PCA,etc.)and all comments associated with
their reviews are addressed.
Water Resources
1. The net SWMP Fee due at the time of final plat is $82,390.20.
2. The applicant shall include electronic copies for the HydroCAD and P8 models in any future
submittals to help to speed up the review process.
3. The site is currently meeting rate control to each discharge point, however,the applicant shall
confirm rate control is still being met after making any necessary modeling updates based on
comments provided.
4. TCs do not appear to have been updated in the modeling for the Phase 2 subcatchments. The
applicant shall confirm that TCs are still accurate for the Phase 2 condition.
5. The outlet from proposed conditions node 46P"Triangle Basin"has been changed from the Phase
1 plans,however,no work on the Triangle Basin is shown in the plans. The applicant shall clarify
this discrepancy.
6. The applicant shall confirm freeboard requirements are still being met after making any necessary
modeling updates based on comments provided.
Avienda Townhomes - Planning Case 2021-22
October 28, 2021
Page 3 of 4
7. The applicant shall confirm spot elevations on the plans near the low-lying backyard areas are the
EOFs for these areas or add the EOF elevations to the plans.
8. The applicant shall plot the plans with the callouts as the top layer so they are not being blocked
by storm sewer or other layers as some are currently difficult to read.
9. The applicant shall provide an operation and maintenance plan that identifies the maintenance,
inspection,and monitoring schedule and responsible party for private BMP's.
10. The applicant shall provide plan/profiles on the water, sanitary, and storm sewer proposed for
Phase 2 to confirm storm sewer sizing and that there are no conflicts.
11. Applicant shall confirm storm sewer sizing calculations provided in Appendix J are for Phase 2
and not Phase 1 as the Appendix title notes.
12. The existing storm sewer shall be shown on all utility plans. It does not appear to be shown on the
south utility plans.
13. Details and cross sections for the Phase 2 BMPs shall be included in future submittals to confirm
modeling.
14. The West Central Basin(Basin 31P in the proposed conditions modeling) is shown with existing
draintile/storm sewer in the Phase 2 plans however the modeling for the basin has been updated
since the Phase 1 plans. The applicant shall provide additional detail on the status of the West
Central Basin.
15. Details on any proposed outlet structures or pretreatment structures for the proposed BMPs shall
be included in future submittals.
16. There are areas in the western townhomes area shown with 2:1 and even 1:1 slopes. Applicant
shall regrade these areas to be a maximum of 3:1 slopes or get approval for steeper slopes from
the City.
17. The applicant shall confirm an easement isn't needed over the proposed storm sewer between
Lots 14 and 15 in the western townhomes area.
18. The applicant should provide RPBCWD erosion control notes on Page 7.
19. Inlet protection,rock entrances,erosion control blanket and other erosion control measures shall
be shown on the plans.
Park& Recreation
1. The current rate per dwelling for Park Dedication fees is $5,800($5,800 X 39 townhome
units=$226.200 Total Park Dedication Fees).
Landscaping
1. The applicant shall include 97 trees in the overall landscaping plan that meets the minimum
canopy coverage requirements for size and diversity.
2. The applicant shall meet minimum buffer yard planting requirements for North and South
townhome areas.
3. The applicant shall install Conservation Easement signage along the south property line abutting
Outlot E. Markers shall be placed at property corners and each deflection point in the property
line.
4. Staff recommends that the applicant apply a higher standard by incorporating landscape features
not currently found within new developments, such as a pollinator meadow,planted woodland,
association community garden, or other sustainable landscape features.
Avienda Townhomes - Planning Case 2021-22
October 28, 2021
Page 4 of 4
Fire
1. Road widths—no parking signs required on one side or both, depending on width. See City Code
for road widths and signage.
2. No combustible construction to begin until fire hydrants and temp/permanent fire access roads are
installed and maintained.
3. Addressing and street signs to be installed immediately upon completion and before occupancy of
first unit. Temp addressing and street signs to be maintained throughout construction.
4. Construction vehicles and material may not block fire apparatus access or hydrants once
combustible material construction starts.
Building
1. A final grading plan and soils report must be submitted to the Inspections Division before permits
can be issued.
2. Retaining walls(if present)more than four feet high must be designed by a professional engineer
and a building permit must be obtained prior to construction.
3. The developer must submit a list of proposed street names for review and approval prior to final
plat of the property.
4. Each lot must be provided with a separate sewer and water service.
5. Building plans must provide sufficient information to verify that proposed building meets all
requirements of the Minnesota State Building Code. Additional comments or requirements may
be required after plan review.
If you have additional questions or need more information. please contact me at 952-227-1139 or
kaanenson@ci.chanhassen.mn.us.
Sincerely,
Kate Aanenson
Community Development Director
c: Kendra Lindahl, Landform Professional Services
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