HomeMy WebLinkAboutFINAL-HB 1110 Middle Housing Compliance 3.1.25HB 1110 Middle Housing Compliance
Legislative Briefing and Municipal Code Updates
March 1, 2025Angelea Weihs, Associate Planner
Katie Buchl-Morales, Senior Planner
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Population Growth and Targets
•Washington State needs 1.1 million new homes over the next 20 years
•In April 2023, Washington State Legislature passed House Bill (HB) 1110 and HB 1337 to
increase the state’s housing supply and diversify housing inventory
•The long-range forecast is for continued growth
830,000
NEW
HOUSEHOLDS
17,000
NEW
HOUSEHOLDS
Puget Sound Region
1.6 MILLION
MORE PEOPLE
1.2 MILLION
MORE JOBS
31,780
MORE
JOBS
City of Renton
Middle Housing – HB 1110
•Requires cities to allow middle housing in
residential zones where single-family detached
housing is the predominant land use
•HB 1110 defines “middle housing” as:
•Buildings that are compatible in scale, form, and
character with single-family houses and contain two
or more attached, stacked, or clustered homes
including townhouses, duplexes, triplexes,
fourplexes, fiveplexes, sixplexes, stacked flats,
courtyard apartments, and cottage housing.
•The legislation sets clear guidelines while allowing for
local choice.
HB 1110 Housing Typologies
Renton zoning codes must allow at least six out of the nine listed types of middle
housing:
1.Duplexes
2.Triplexes
3.Fourplexes
4.Fiveplexes
5.Sixplexes
6.Townhouses
7.Stacked Flats
8.Courtyard Apartments
9.Cottage Housing
HB 1110 Parking Standards
HB 1110 precludes cities from requiring off-
street parking as a condition of approval when
located within ½ mile walking distance of a major
transit stop
A stop on high-capacity transportation system funded or
expanded under the provisions of chapter 81.104 RCW;
Commuter rail stops;
Stops on rail or fixed guideways systems; and
Stops on bus rapid transit routes, including those stops
that are under construction
Qualifying transit routes:
King County RapidRide F line;
Future Sound Transit Stride; and
Future King County RapidRide I line
Parking Standards
Parking requirements determined by lot size
Lots 6,000 sq. ft. or smaller: One off-street parking space per middle housing unit is the max that can be set
Lots greater than 6,000 sq. ft.: Two off-street parking spaces per middle housing
unit is the max that can be set
Exemptions
Communities governed by existing homeowner associations which ban multifamily development
Lots in impaired or threatened watersheds
Portions of lots designated with critical areas or their buffers
Lots that have been designated as “urban separators” by countywide planning policies
City or water utility systems/providers which do not have adequate water supply or available
connections to serve the increased number of units
No city shall approve a building permit for housing under section 3 of this act without compliance with the
adequate water supply requirements of RCW 19.27.097
Cities are not required to update their capital facilities plan element to accommodate increased
housing until the first periodic comprehensive plan update required on or after June 30, 2034.
Compliance and Deadline
Compliance required by June 30, 2025
If a city has not passed development regulations
by the statutory deadline, state-approved Model
ordinances preempt and supersede the local
development regulations and remain in effect until
the city takes all actions necessary to implement
RCW 36.70A.635
Summary of Public Feedback
Mixed public response to HB 1110
Opportunities: diversity of housing types, affordability, independent multi-generational
living, aging in place, and grow generational wealth.
Challenges: parking, traffic congestion,
capacity of infrastructure, loss of naturally occurring affordable housing, negative
impacts to neighborhood aesthetics, and potential for disproportionate interest/impacts in Renton compared to
other cities in the region.
Polling summary available online: House
Bill 1110 - Middle Housing | Your Voice Renton
•Applicants will have the option to choose middle housing or pursue traditional development.
•Current standards for residential zones will largely remain the same (e.g., height,
setbacks, design standards, etc.).
•Staff proposes development standards for Middle Housing that are consistent with
those required for single-family, in order to achieve compatibility in scale, form, and character with existing Renton neighborhoods.
Local Approach to Middle Housing Updates
MIDDLE HOUSING UPDATE PROPOSALS – UNITS PER LOT
Proposed Number of Units: Up to 4 units per lot, within applicable zones.
Up to 6 units per lot on all lots within 1/4-mile walking distance of a major
transit stop.
Up to 6 units per lot if at least 2 units are reserved as affordable.
MIDDLE HOUSING UPDATE PROPOSALS – ZONES
Proposed Applicable Zones: RC, R-1, R-4, R-6, and R-8 zones.
MIDDLE HOUSING UPDATE PROPOSALS – UNIT TYPES
Proposed Middle Housing Types:
Townhouses
Duplexes
Triplexes
Fourplexes
Stacked Flats
Courtyard Apartments
Proposed Excluded Middle Housing
Types:
Fiveplexes
Sixplexes
Cottage Housing
MIDDLE HOUSING UPDATE PROPOSALS - PARKING
Proposed Off-Street Parking Space Requirements for Middle Housing:
As proposed, middle housing developments will comply with all driveway
and parking design standards applicable to single family development,
except for the number of required parking spaces, as noted above.
Lots 6,000 sq. ft. or Less Lots greater than 6,000 sq. ft.
Lots located within ½ mile
walking distance of a Major
Transit Stop
1 per dwelling unit.2 per dwelling unit.
No off-street parking required.
parking incentives may be provided
for developers that provide off-
street parking when not required.
Closing Remarks
•Not all residential lots are eligible for maximum unit count.
•Development regulations for underlying residential zone must be met.
•Height, setbacks, building coverage, impervious surface coverage, tree canopy, etc.
•Check online: RentonWA.gov/CORmaps
•Send us an email with your property address to confirm zoning:
PlanningCustomerService@RentonWA.gov
425-430-6578
Next Steps
RentonWA.gov/HousingLeg
•Planning Commission
•Briefing: March 19, 2025
•Public Hearing: April 2, 2025 (tentative)
•Deliberations and Recommendation: April 19, 2025
•Compliance Deadline: June 30, 2025
•Effective Date: July 1, 2025
Q&A
Email us your HB 1110 questions/feedback:
Katie Buchl-Morales
kbuchl-morales@rentonwa.gov
Angelea Weihs
aweihs@rentonwa.gov
Questions related to something else?
Planning Customer Service
planningcustomerservice@rentonwa.gov