HomeMy WebLinkAbout007 North Wallace Residences NARRATIVEPLUM DESIGN LAB | 875 BRIDGER DRIVE UNIT F | 406-624-6786 Pg1
Concept Site Plan, 12.10.2021
North Wallace Residences
Owner: David H. Viciedo
Proposed Site Address: 428 N. Wallace Avenue, Bozeman, MT 59715
Legal: Babcock and Davis ADD, S07, T02 S, R06 E, Block 7, 0.299 Acres, W2 Lot 3
Table of Contents
1.Project Summary
2.Site Programming and design elements
3.Requests for Staff
Project Summary
Plum Design lab was contracted to perform a site design with focus on the site relationships
configuring a total number of 11 residential units on a single plot of land currently owned by
David Viciedo. The owner currently resides in the existing single-family home currently on
the site. This initial design demonstrates a configuration of 2 Duplex units with garages, 1
ADU with designated parking, and 1 single family residence. The grading and property
boundary was generally created via online tools and shall be verified going forward if the
city considers the project acceptable.
Existing Residence and Garage (Street View)
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Property Vicinity Map
Site Location Map
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Site Program
Existing Residence and Area Calculations
● Existing Residence is Approximately 600 sq ft
● Existing Garage is Approximately 300 sq ft
● Site records indicate .299 acres, approximately 13,024 sq ft
● Fronting Property Boundary Line is 62.5’ per warranty deed
Proposed 4 Buildings with 11 Residential Bedrooms
● 2 duplexes (6 beds)
● 1 ADU (1 bed)
● 1 Single family residence (4 beds)
Each Residential Unit will have the following
● (1) 4-bedroom Single family residence, 2,900 – 3,000 gross square feet
● (1) 1-bedroom ADU, 500 - 600 gross square feet
● (2) 3-bedroom duplex units 3,000 – 3,400 gross square feet
● 2-1/2 Bathrooms in the Residence
● 1 Bathroom in ADU unit located toward the rear of the lot
● 2-1/2 Bathrooms per duplex unit
● Connective decks and patios to the site, upper decks toward the drive aisles.
● Standard sized garage of 23 x 23
Intensity:
Total estimated square feet of finished area: 6,731 sq ft.
Lot size: 13,024
6,731 / 13,024 = 0.52 FAR (0.75:1 allowed per 38.320.030.C in R-2)
Lot Coverage:
Total estimated square feet of footprint proposed: 3,414 sq ft
Lot size: 13,024
3,414 / 13,024 = 0.26 (40% allowed per 38.320.030.C in R-2)
Zoning Map (M-1 Designation)
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Planning:
Road access via Wallace Avenue with compliant Fire truck access is provided. We have
indicated on the site plan our proposed fire access. Can staff please provide general
feedback on the acceptance of this method or identify further requirements for compliance.
The project proposes pedestrian access via a sidewalk of 5’-0” wide located on the North
side of the duplex units and single-family residence. This access provides egress to each
unit and the open space with enhanced landscaping features and planters surrounding the
area. Please confirm that this is acceptable.
Landscaping features and general pedestrian features are provided on the site plan for
review.
Setbacks:
Front: 15’
Sides: 5’
Rear: 28’
HT Max: 37’-3”
HT Totals:
4:12 = 27’-6” – Residence
8:12 = 27’-8” – ADU/Garage (per accessory building diagram 38.360.030.G)
4:12 = 38’-8” – Duplex
Parking Required for each unit:
● 3 parking spaces are required per unit for the 3-bedrooms, 2 are provided in each
garage, while 2 parking stalls are provided for the third parking space requirement.
● 4 parking spaces are required for dwellings with more than three bedrooms. The
single-family residence has 4 bedrooms. 2 spaced are provided in the garage below
the ADU and 2 more compact parking stalls are provided outside the garage.
● 1 parking space is required for the ADU. This is provided next to the parking stalls.
Note: Because of the lot frontage being 62.5’ wide we were unable to create an on-
street parking stall outside the vision triangle. Please correct us if this is incorrect.
Open Space:
Residence:
293 sq ft of open space is required for the single-family residence,
2,937 * 0.1 = 293 | 327 sq ft is provided
Garage/ADU:
53 sq ft of open space is required for the 1-bedroom dwelling (ADU),
533 * 0.1 = 53 | 284 sq ft is provided
Duplex:
326 sq ft of open space is required per unit for the 3-bedroom units (2),
3,261 * 0.1 = 326 | 427 sq ft is provided
Parkland:
.3 acres of open space has been calculated as required for open space with the 11
residential dwellings proposed, per Table 38.420.020.A (BMC). This is equal to 13,068 sq ft
of open space. The site is only 13,024 sq ft in size. Please confirm this method of calculation
is correct. Please provide total Cash in Lieu payment amount due.
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Engineering Items:
Access from Wallace with a fire apparatus on a 20’-0” wide drive aisle. As noted on site plan
drive aisle has a length of 149.92’. Please confirm if this approach is acceptable without a
turnaround.
We propose extending both water Main and Sewer Line Main (8” dia.) from North Wallace to
the residences along the South side of this corridor.
Drive access is proposed for the units on the provided site plan. We believe the lot can hold
the density per the overall land use planning of this area. We are proposing a 20’-0” wide
drive access ingress and egress from the site serving the residences. Fire Lanes will be
posted with signs and paint indicating no parking areas. Snow storage and water retention
areas are proposed on the site plan. Full calculations will be provided via preliminary site
plan.
Lighting:
All pedestrian lighting will be provided from the residence entries for the road and sidewalk
circulation paths.
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Perspective View
West Elevation East Elevation
South Elevation
North Elevation