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Home My WebLink About20240214 - Sustainability Advisory Board - Engineering Design Standards Update - Compact Development White PapersWednesday, February 14, 2023 Engineering Design Standards Update -Compact Development White Papers Overview •Background •What are other communities doing? •Bozeman specific analysis •Discussion Engineering Standards Components •Design and Construction Standards •Bozeman Modifications to Montana Public Works Standard Specifications (MPWSS) Purpose of Engineering Standards •Public health and safety •Clear design criteria •Review procedures and inspection requirements •Operational efficiency while minimizing life cycle cost of public infrastructure Project Goals •Modernize engineering standards •Organize standards for clarity •Consistency with facility plans •Meet Federal and State regulations •Minimize infrastructure life cycle cost •Revisit engineering standards as they relate to compact development and see how other communities are addressing affordability and sustainability Overview •Background •What are other communities doing? •Bozeman specific analysis •Discussion Engineering Standards Update •Peer Cities •Vancouver, WA •Bend, OR •Flagstaff, AZ •Similar Growth Patterns/Affordability Issues •Have both local and state- directed housing and climate action policies and requirements Engineering Standards Update Housing Climate / Sustainability •Reducing/eliminating mandatory parking •Greater allowance for middle and higher density housing •Greater multi-modal access •City expansions for affordable housing •Identify and remove procedural barriers (reducing processing thresholds and timeframes) •SDC, CET and other $ strategies •Reducing/eliminating mandatory parking •Greater density, particularly in transit supportive areas •“Complete streets” policies for multi-modal use •Require a Climate Action Element in comprehensive planning •State building code adjustments Overview •Background •What are other communities doing? •Bozeman specific analysis •Discussion Bozeman Housing Affordability Efforts •Community Plan •Community Housing Plan •Municipal Code Development Trends 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2014 2015 2016 2017 2018 2019 2020 2021 2022Number of Units PermittedYear Bozeman Home Construction Permit History Single Household Units Multi-Household Units Townhome Units Life cycle cost is more than just initial construction cost (Source: Graphic adapted from EPA Fundamentals of Asset Management Session 4 – Determine Life Cycle & Replacement Cost) Compact Development Analysis Bridger View Subdivision Townhomes & Single-Households Density: 7.1 units/acre Home Price: $524k – $760k $354/sf HOA Fees: $200/month-$361/month Right-of-way and street widths do not meet City Standards. •30’ vs 60’ right-of-way •23’ and 26’ wide woonerfs vs 31’ minimum street with boulevard and sidewalk Water and sewer services do not meet standards •Services to homes provided directly from mains within right-of-way Bridger View Subdivision Cottages Density: 7.2 units/acre Lease Price: $2,100 – 3,300 per month HOA Fees: Leased Units Cottages at Blackwood Groves Exterior right-of-way and streets meet City Standards. •Standard City streets around perimeter of development. Water and sewer services do not meet standards •Interior homes have long services in difficult to access areas. Much of these areas are intended to be community spaces like parklets, gardens, and paseos. Cottages at Blackwood Groves Townhomes Density: 7.0 units/acre Home Price: $575k – $625k $315/sf-$362/sf HOA Fees: $65/month Initial Infrastructure Cost: $20,300/home Life Cycle Infrastructure Cost: $31,000/home Right-of-way, streets, and services meet City Standards. •Driveways provide off-street parking. •Sufficient road width for on-street parking. •Boulevards for snow storage •Services to homes are in the street Valley Meadows Subdivision Valley Meadows Subdivision Condos/Apartments Density: 10.0 units/acre Home Price: $595k – $705k $360/sf-$369/sf HOA Fees: $165-250/month Right-of-way, streets, and services meet City Standards. •High density housing •Exterior streets meet standard •Off-street parking provided •Sufficient road width for on-street parking. Meadow Creek Subdivision Meadow Creek Subdivision Cost Summary Development Density (units/acre) Initial Infrastructure Cost Per Home Life Cycle Cost Per Home (PW) Home Price Per Square Foot HOA Fees C1-Bridger View 7.1 $26,300 $45,500 $354 $200-$361 C2-Blackwood Groves 7.2 $27,400 $44,800 $367 N/A S1-Valley Meadow 7.0 $20,300 $31,000 $362 $65 S2-Meadow Creek 10.0 $28,800 $38,000 $369 $165-$250 Life Cycle Costs C1 C2 S1 S2 Housing Cost Components •Cost of building the home generally about 80% of total home cost •Infrastructure 4% to 6% of total home cost based on evaluation of local developments 80% 10% 2% 3%5% House Cost Components House Construction Undeveloped Land Developer Financing/Holding Costs Entitlement & Impact Fees Infrastructure Developments that do not meet engineering standards can have higher life cycle costs •Maintenance of substandard road sections •Snow removal, transport and storage •On-street parking conflicts, reducing efficiency of City services •Long water and sewer services in difficult to access locations Life Cycle Costs Discussion Engineering Standards Update