6 Courtyard townhouses on a 12,000 sf ft lot

Seattle is going to change thousands of residential lots from ‘Single Family’ to ‘Residential Small Lot’ (RSL) as part of the MHA zoning reform. The rules covering RSL have been totally rewritten and there are many questions about how it will affect our neighborhoods such as Crown Hill, West Seattle, and South Park

What is RSL?

Where is RSL?

What are the rules governing the density, size, etc?

How is MHA going to factor into development?

What is the difference between a backyard cottage and a second house?

What are some of the prototypical developments that are possible under the new code?

If you live in one of the affected urban village or are interested in innovative infill housing, join Matt Hutchins, AIA for this informational talk.

RSVP here:

https://cast_whatisrsl_march20.eventbrite.com

Seattle is going to change thousands of residential lots from ‘Single Family’ to ‘Residential Small Lot’ (RSL) as part of the MHA zoning reform. The rules covering RSL have been totally rewritten and there are many questions about how it will affect our neighborhoods such as Columbia City and Rainier Beach.

First, what is RSL and what kinds of new development are we likely to see?

Second, how does RSL address displacement, affordability, density or sustainability?

Finally, how can we improve RSL so that it can be the most effective before the ordinance comes before Council?

If you live in an urban village or are interested in innovative infill housing, join Matt Hutchins, AIA for this informational talk.

RSVP here:

https://www.eventbrite.com/e/envisioning-seattles-residential-small-lot-future-tickets-52921293012

Seattle is going to change thousands of residential lots from ‘Single Family’ to ‘Residential Small Lot’ (RSL) as part of the MHA zoning reform. The rules covering RSL have been totally rewritten and there are many questions about how it will affect our neighborhoods, including most of South Park.

First, what is RSL and what kinds of new development are we likely to see?

Second, how does RSL address displacement, affordability, density or sustainability?

Finally, how can we improve RSL so that it can be the most effective before the ordinance comes before Council?

If you live in an urban village or are interested in innovative infill housing, join Matt Hutchins, AIA for this informational talk: Follow the link below to RSVP. Thanks!

https://www.eventbrite.com/e/envisioning-seattles-residential-small-lot-future-tickets-51155568683

Steelaway Cottage, by CAST architecture 2018

To celebrate the final Environmental Impact Statement that came out last week, we’d like to highlight some of the less obvious but clear reasons for progressive Seattle to embrace the new ordinance covering Accessory Dwellings.

1. Many ADUs end up being affordable, even if they are admittedly expensive to build. I have made the case over and over that we should approach ADUs with our eyes open as to the cost and not put too much faith in them as a cure-all for our housing crisis. But, in surveys collected from Vancouver, Portland, Ashland, Eugene, Edmonton, the Bay Area, a large percentage (generally around 20-25%) of accessory dwellings end up being rented for nothing, very little or well below market rate. Voluntary affordability, where the owner has prioritized the benefit of having family, friends, or even good tenants as neighbors over the potential rent they could demand if they were more ruthless landlords is a major benefit of this form of housing.

Voluntary Affordability in Portland. https://accessorydwellings.org/2014/08/07/do-adus-provide-affordable-housing/

Voluntary Affordability in Edmonton. https://accessorydwellings.org/2017/09/08/garden-suites-in-edmonton-a-private-investment-in-the-public-good/

For example, I have friends who have not raised the rent in 9 years for their upstairs mother-in-law apartment because they love the tenant but she’s on a fixed income. It’s a sweetheart deal they want to last as long as she can handle the stairs. These anecdotes are the rule for homeowners who’ve ‘DIY’ developed an extra unit on their property.

In Portland among owners who live in their ADU, 41% of the primary residences where offered for FREE. Meanwhile, we’re fighting tooth and nail over an inclusionary zoning program that might create 6–10% of new housing as rent restricted. The reality is that a naturally occurring housing type people desperately want to build all over is also 2 1/2 times more likely to create truly affordable housing than our best big policy idea.

2) Making Mother-in-Laws and cottages pencil financially counters wild speculation on McMansions. In the Draft EIS, the City ran different financial models for potential development outcomes. In the draft EIS, 46% of the possible scenarios resulted in tear down/replacement McMansions being the most profitable investment. It was only in cases where the land value was high and the lots were large that adding an ADU and DADU made sense. But if you value the neighborhood and want to curb the momentum of displacement and gentrification, supporting options where a second or third household can add rental income suddenly flips the proforma against the disruptive scourge of McMansions.

3) Renters are Seattle’s majority and any related stigma is out of touch. Owner occupancy restrictions are the biggest impediment to the creation of more housing and keep lower income renters out by limiting the number of options for less expensive dwellings to exist. The checkered history of zoning as a substitute for outlawed racial or class covenants is well documented.

More than 20% of Seattle houses are already rentals. We don’t have a restriction on renting out a detached house and has very few expectations of landlords (more might be in order) yet neighborhoods still thrive. Both tenant and landlord are by and large responsible neighbors. Ask any renter, and they will tell you that they are just as committed as property owners to the neighborhoods, support the local businesses, and participate in civic life. As the majority of Seattleites, renters make up the underlying tax base that funds our government, parks, police, and transit (renters pay property taxes too, just through rent).

4) Besides, owner occupancy restrictions should be illegal. Limiting WHO can use land, as opposed to what the land’s function is isn’t really the job of the land use code. Making property ownership the prerequisite to use is unique to ADUs and has been challenged elsewhere. Other jurisdictions, such as Alberta Canada explicitly allow residency without ownership wherever residences are allowed for that reason.

Find the duplex! (Answer below)

5) Finally, extra dwellings are already everywhere. While people might worry that allowing a ADU and a DADU without owner occupancy restrictions will lead to no less that the ‘destruction of our most unique resource, Seattle’s single family neighborhoods,’ the reality is that there is a long history of small multi-family dwelling coexisting with and even predating the now dominant paradigm of stand alone houses for solitary households. Turn of the last century neighborhoods, like Queen Anne and Wallingford (pictured above), valued for their amenities, walkability, and housing stock, were developed mostly before zoning. They are filled with the highest concentration of small multifamily buildings, house more than 10,000 households, but you might never know it from the street. Honestly that is part of their charm and vitality. If the worst thing is that there are a few more families per street, I think our neighborhoods are more than resilient enough to handle it.

Here is a map of every multifamily building and accessory dwelling in Seattle as off 2016-find the hidden duplex on your street!

Every dot is at least one extra household that doesn’t need a stand alone house.

*In the photo above every structure is a duplex, triplex or fourplex, with the exception of the tallest white structure on the left.

RSL Walk ups and cottage developments create a neighborhood within a neighborhood. 

Seattle is facing a housing shortage, a climate crisis, and an increasingly inequitable city. Allowing more dwelling options, at various sizes and price points, is a great strategy to combat all three. Enter the Residential Small Lot Zone, Seattle’s attempt to add less expensive dwellings in dense, amenity rich urban centers without disrupting the historical fabric of single family detached houses. 

As part of Mandatory Housing Affordability (MHA), Seattle is rezoning many of the Urban Village parcels currently zoned ‘Single Family’ to ‘Residential Small Lot‘ (RSL). RSL exists under the code right now, but is applied to only 7 acres of zoned land in Seattle and has narrowly defined housing types and restrictions that have kept it from wider acceptance. Under MHA, RSL will be expanded to 768 acres and include about 6200 Single Family Lots. The proposed code has been rewritten from the ground up, so let’s dig in and see what it is likely to produce for Seattle’s neighborhoods. 

Function

Reading the definition of RSL, it is hard not to feel sorry for this hard working zone.

It has to be a little of everything to everyone. It is uncommon for a zone description to get into issues of affordability, children, and the desires of its residents. We don't expect the description of General Industrial 2 (IG2) to make judgments about dockworkers’ life choices. Or Downtown Office Core-1 (DOC-1) to wonder about whether people in Downtown Office Core 2 (DOC-2 ) feel development there is appropriate.

Nevertheless, it exposes a question. What is the mission of RSL? Is it a transition between Residential zones? Is it meant to capitalize on the proximity to urban centers by putting residents close to amenities, jobs and transit? Is it fighting displacement, or fostering density? What need does it serve, and what is the positive vision of that zone? Right now, it is formulated with a little of everything, including some new stuff, and takes elements from single family, multi family, bridges residential and building code with a dash of high minded mission to address family housing and affordability.  It is a little like this: 

RSL.  Not elegant, but adapted to its environment.

The Nitty Gritty: What does it look like on paper? 

What does RSL look like? 

Before RSL zone, this Single family zoned street has 28 dwellings. 

And again, after a generation of development doubles the number of dwellings:

57 dwellings on the street, double the current density, but not much change at street level. 

Prototypes for RSL Zoning

We've taken the liberty to suggest some prototypes, based on traditional 'missing middle' multifamily, optimized for this zoning.  

Bungalow Court (or the Walk Up Model) 

For lots greater than 11,699 sq.ft, this bungalow court has (6) 3BR 1466 sq.ft. primary units, and (6) 733 sq.ft. 1 or 2BR ADUs.  This walk up is really a module that can be arranged into twos, threes, any grouping based on density limitations. 

Double Up Duplex

Our idea is for a stacked duplex, 1500 sq.ft. configured for an ADU, optimized for the allowable FAR on a minimum 4000 sq.ft. lot. We'd target Passivhaus green building standard, integrate green roof, pv, and rainwater catchment.  

Alternative configurations for ADUs, or future co-housing options. 

Recommendations for code tweaks!

Here are fourteen ways we can improve the Seattle’s MHA’s totally rewritten Residential Small Lot zone, BEFORE it goes into effect:

1.Exempt RSL from MHA fees. New dwellings created in the RSL zone will be subject to MHA, but will anyone built a rent restricted house? No. Therefore, fees due at permit issuance could be as high as $45,650. It will have a dampening effect on any homeowner looking to build a second house on the back of their lot. Many of those homeowners will build an ADU instead (not subject to MHA fee), eliminating the upside of more smaller homes in the marketplace. 

2. Allow ADUs to function as MHA performance! MHA performance is 50% for lots under 5699 sq. ft.. Meanwhile ADUs are by definition limited to a smaller size, and making them affordable would be closer in spirit to the original intent of the ordinance.

3. Eliminate new Maximum Net Unit Area limit. Maximum Net Unit Area is a new, unique limitation that only applies to this zone, and nowhere else. It is Floor Area per Unit, and it is often in conflict with the Floor Area Ratio (FAR) for the parcel. There are no MNUA exceptions for existing houses or additions, meaning many of Seattle’s classic bungalows in RSL zones will suddenly become non-conforming, unable to do a ‘bump out’ or even a SECOND story addition. Because basements count toward MNUA, but not FAR, expect a lot of new buildings with basements apartments. 

A basic RSL block reveals surprising inflexibility unless you want to add a second dwelling

The owners could only do a 230 sq. ft. addition. Not a second story. They could however build a new dwelling behind it up to 2200 sq. ft.

4. Start FAR at 1, give .25 bonus for more dwellings. The FAR is .75, lower than any Low Rise zone, and effectively lower than Single Family zoning (only governed by height and lot coverage). If RSL is meant as a transition between multifamily and single family, it is more restrictive that both.

5. Lower the density ratio to 1 to 1500. Fourteen percent of the newly minted RSL lots will not even support a second dwelling. Why go through this process then wipe the development capacity of 900 lots off the table? Rounding up for density at 1.85 * 2000SF means any lot under 3699SF is still a single family lot, but MNUA effectively limits all dwellings to an FAR as low as of .59.

6. Allow more than one Accessory Dwelling Unit (ADU). All these lots are in urban centers, where we are planning to put almost all our growing population. Many lots or owners aren’t going to want to built a full second dwelling. Meanwhile, SFZ will soon allow two ADUs per primary residence. This flexibility will preserve many existing houses, and provide homes for new residents right in the urban villages.

7. Exclude ADUs from MNUA. An accessory dwelling unit counts against the MNUA, meaning many average houses wouldn’t be able to build a cottage without sacrificing square footage in the primary house.

8. Resist the urge to Design Standard. The two Design Standards for RSL are ridiculous. Different color walkways to the house in back? Why? We don’t expect such ham fisted wayfinding in multifamily zones where there’s likely more front doors. One of the great strengths of the proposed code is that it did away with the many of the restrictive types, like ‘tandem housing.’ Let’s not dilute it with well meaning micro management, only to find out that we’ve created a less than graceful solution (remember the platypus!).

9. Allow exceptions from MHA when preserving existing houses. Subdividing existing houses into multiple units will be penalized by the Design Standards, and be subject MHA fee, at the full price for the area of units. The MHA fee calculation is gloss floor area/total units X net increase of units. A 3000 sq ft house, converted into a triplex from single family, would pay MHA on 2000 sq ft as if new, or up to $41,000. That neither incentivizes preservation or the creation of more affordable housing. 

This is a triplex.  Converting it under the MHA regime would cost tens of thousands of dollars in MHA fees in addition to the requirements of retrofitting.

10.Take out limit on number of apartments. The stigma of apartment living results in one of the most efficient (and revered) forms being outlawed. The code is clear: RSL outright outlaws more than three apartments regardless of lot size. No cute Capitol Hill fourplexes.

This fourplex is not allowed under the new RSL zone. 

11. Eliminate owner occupancy requirements. We don’t require owners to live on site in other multifamily zones, owner occupancy requirements will severely limit the number of accessory dwelling units and they reinforce a fundamentally class based stigma against renters.

12. Change all residential zones to ‘Residential’. We now have three titles for zones where residences are the only use; Single Family, Lowrise, Residential Small Lot. While RSL is being treated as a unique bridge between SFZ and LRZ, it should be part of a continuum of dwelling per square foot. Streamline!

13. Amend Seattle Residential Code to cover up to four apartments. Building codes switch to the more demanding SBC for anything more dense than a duplex and ADUs are considered as such. When buildings should be getting more efficient, like stacking a third apartment on top of a double decker, there is a quantum leap in construction cost, driven by code compliance.

14. Allow Live Work and Corner stores. In midrise zones, having residential suites at the street level seems forced. Two blocks from the center of an urban village, having an office space legible from the street makes total sense. Allowing corner stores would expand the walkshed so more people will walk to pick something up, rather than drive to a supermarket.

Neighborhood institutions start with entrepreneurial neighbors. Give them a place.

We're almost done with a believe it or not historical renovation of a mid-century architect's own house--more to come! 

RBUFW Classroom building, view looking south from the entry path (architectural rendering)

RBUFW Classroom Building

We've been on an intense push the last few weeks to develop a schematic design for the new Classroom Building at the Rainier Beach Urban Farm and Wetlands (RBUFW). We're incredibly excited that Seattle Parks and Seattle Tilth were able to compress a two-phase master plan into a single project, but the result has been a very aggressive schedule for the design phase!

For  inspiration, we've been looking at pragmatic agricultural structures, both the simple closed forms of storage sheds and more "prismatic" shapes of greenhouses and barns. Greenhouses are particularly intriguing in the way the inside reveals a complicated structure and interior volume that is barely suggested by their taut and simple exterior form.

Greenhouse interior & exterior images

Sited to preserve the maximum agricultural land, the Classroom Building is nestled into a hillside along the east edge of the property. Three closed "boxes" containing support functions are slotted into the hillside, with the open space between accommodating the classroom and a grove of existing trees.

RBUFW Classroom Building Floor Plan

Above the boxes, a pair of elevated canopies create the primary function spaces and extend out over the pathway to provide plenty of covered outdoor space.

Image

RBUFW Classroom Building, view from the SW (architectural rendering)

From the outside, these canopies appear as simple translucent volumes, but the inside reveals vaulted space, filtered sunlight and expressive structure. We've taken inspiration from architects such as MW Works and VJAA who accept the construction techniques of industrial space-making, but turn around and use those conventional materials in a very refined and thoughtful manner.

RBUFW classroom building, view under main porch (architectural rendering)

RBUFW classroom building, interior view (architectural rendering)

More media about RBUFW:

Seattle Magazine "On the Urban Farm"

Seattle's Child "Urban Farms Grow Healthy Eaters"

The Seattle Times "An Urban Farm Helps Immigrants from East Africa Settle in Seattle"

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For their efforts on the Anderson Residence, Model Remodel has won a Green Remodeling Excellence award from the Master Builders Association.

Congrats to Jason and his crew for a fantastic job!

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We had a fantastic turn out for the Sand Point ElementaryEarth-day work party this past weekend. A special thanks to Loren Yaguchi and all the folks from Abbott Construction's special projects group for donating materials, shop time, and a whole lot of can do to make the benches we designed become a fantastic kit of parts for the community to assemble!

30 new stacking benches for the outdoor classroom fully assembled - a testament to the prep of the folks a Abbott Construction and all the volunteers who turned out to work on our local public school!

Thank you to Carter Capps, pitcher for the Seattle Mariners and Taylor Graham, defender for the Sounders FC for signing autographs and helping with our projects!

Richard Swann author of “Our School Garden” putting the newly assembled benches for the outdoor classroom to good use!

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Mark your calendars! The Andersons Residence, a 4 star Built Green home, will be open to the public for touring as part of Northwest Eco Building Guild Green Home Tour on April 27th.

The Anderson residence is a Built Green renovation, addition and transformation of an existing single family home. The plan opened, simplified and streamlined the existing first floor in addition to adding a new second story to provide much needed space for a growing family.