The structured commercial parking facility (as opposed to its underground cousin), can be an eyesore if poorly designed and without relation to the street. It can sterilize the street through blank walls and hidden corners making the street unsafe and boring to walk past. A commercial parking facility near my workplace in a municipality west of Toronto is a classic example of what not to do. As shown in the Google Streetview below, the parking garage is a grey, dull, precast concrete structure with cars fully exposed on the ground floor. The little bits of landscaping does little to soften the harsh and polluted image of the structure. The street itself already lacks energy due to the absence of any kind of at-grade pedestrian oriented land use. To top if off, the pedestrian bridge allows users to bypass the street completely, further alienating the street.
Downtown Portland isn't any better because there are almost a dozen multi-storied structured commercial parking facilities, and that number does not include those attached to an office building or other commercial/residential use. Each of these facilities can take up one city block (200 feet by 200 feet) and are generally 8-10 storeys in height. One in particular is 16 stories in height. Several of these are city-owned lots while the rest are privately owned. With the ability to park several hundred vehicles at a time, these massive buildings are a vital source of off-street parking in downtown Portland.
So how does Portland treat these commercial parking facilities? One has to look at their Zoning Code where it goes into some detail. Without going too much detail on how the Zoning Code is structured and the different types of parking (i.e. Growth vs Preservation vs Visitor vs Residential/Hotel) the Central City District Plan contains regulations on parking and access. Within the Downtown and University Subdistrict, 50% or more of the street-facing facade must be developed for Retail Sales and Service or Office uses which can be developed at the time of construction or designed for later conversion. The remainder of the street facade would be used for the entrance to the parking garage or for stair entrances. The online source to the Zoning Code and the Central City District Plan can be found starting on page 69 [Link]. In addition to land use, there are also various landscaping requirements to provide further softening of the facility (if required).
The result is a structured parking garage that has more of a defined street presence on the street instead of having a series of blank walls or cars visible from inside the facility. It also allows the parking garage operators additional revenue from leasing commercial space at grade. From a pedestrian perspective the streetscape is far more inviting and less harsh. There are more interesting things to peruse other than a blank wall and feels safer. The photos below show a relation between the pedestrian and the parking facility itself.
The first photo is an existing commercial parking facility located at SW Alder and SW 6th. Taking up half a block, it is a 12-storey parking facility where the bottom two floors are devoted to retail uses (i.e. candy shop, stationary and office supply shop, clothing store) and are wrapped on all three sides of the building facade. The entrances to the retail stores are on SW 6th which is one of the main commercial streets in downtown Portland. SW 6th is also one of two transit mall locations so the number of pedestrians and transit users is much greater than the average commercial street. The differing uses of building materials show the attention to detail the builder proposed on the first two floors. The top floors, even though is devoted to parking of cars, also has upgraded building materials and design such as an elevator atrium facing SW 6th, and the use of light coloured brick instead of pre-cast concrete. If you look carefully, there is even decorative trim on the top of the building to have some consistency in design with adjoining buildings. This parking facility represents one of the finest examples of what a developer can do to create attractive parking structures.
The second example below is another parking garage located at SW 5th and SW Salmon and only takes up half of a block. This six-storey parking garage (plus rooftop parking) is also located on the Transit Mall as well, and includes commercial uses at grade. In this case it is a restaurant and a retail store. The entrance to the parking garage is located on SW Salmon. The building at first glance looks less refined than the example above, but stepping away from the building you can make out the finer details of the building such as a set of metal fire stairs on the side of the building, and decorative trim on the roofline. From the street however, you can see a few of the parked cars. It would have been better if the openings were not so large in order to shield the cars from the street.
The third and final example below shows an existing parking garage where the building facade is comprised of exposed metal beams and colourful tiled panels creating a unique pattern throughout. The design of the facility is so you cannot see the cars from the street. The corner of the building shrouds the parking facility with patterned walls.The ground floor contains numerous retail spaces but at the time of the visit many of these units were vacant. There was a coffee shop closest to one of parking garage entrance, and a retail store on the other parking garage entrance. The eight-storey building (plus rooftop parking) again takes up half a block only.
Although all of these examples have commercial uses at grade, the design at the ground level is important as well. As the first example shows, exceptional facade design will "show" much better than one that has little thought put on the ground floor, which then attracts better tenants. As the third example show however, there needs to be some investment and attention to the design of the ground floor facade. Simply proposing commercial units at grade does little to maintain the pedestrian vitality of the street. There also needs to be cohesiveness and continuity with surrounding commercial uses. The third example above shows the ground floor appears dated and old.
There are many more examples in the city that showcases how parking facilities such as these can maintain and continue a positive pedestrian experience along a commercial street. And by no means is Portland the only city that does this, as I am pretty sure your own city have examples of parking facilities that have commercial uses at grade. Even in Toronto where I am from, there are a few examples of parking facilities that have commercial uses at grade. But in a place like in Portland where its downtown is so compact and vibrant, requirement of commercial uses at grade not only makes sense, but probably contributed to the success of its commercial streets and its pedestrian experience.























