This is an excerpt from Howard Blackson´s article The five Cs of neighborhood planning:
The neighborhood is a physical place — varied in intensity from more rural to more urban — that many different communities inhabit. At its essence, whether downtown, midtown or out-of-town, its health and viability (in terms of both resilience and quality of life) is defined by certain basic characteristics. Easily observable in neighborhoods that work, these characteristics have been articulated a variety of ways over the years — most notably for me by Andrés Duany and Mike Stepnor. Combined, they form what I like to call the 5 Cs:
Great neighborhoods host a mix of uses in order to provide for our daily need to live, work, play, worship, dine, shop, and talk to each other. Each neighborhood has a center, a general middle area, and an edge. The reason suburban sprawl sprawls is because it has no defined centers and therefore no defined edge. Civic spaces generally (though not always) define a neighborhood’s center while commerce tends to happen on the edges, on more highly traffic-ed streets and intersections easily accessible by two or more neighborhoods. The more connected a neighborhood is, the more variety of commercial goods and services can be offered, as not every neighborhood needs a tuxedo shop or a class ‘A’ office building.
The 5-minute walk from center to edge, a basic rule-of-thumb for walkability, equates to approximately 80 to 160 Acres, or 9 to 18 city blocks. This general area includes public streets, parks, and natural lands, as well as private blocks, spaces and private buildings. This scale may constrict in the dead of winter and/or heat of summer, and expand during more temperate months. Compactness comes in a range of intensities that are dependent upon local context. Therefore, more urban neighborhoods, such as those found in Brooklyn, are significantly more compact than a new neighborhood located, for example, outside Taos, New Mexico. Remember, the ped-shed is a general guide for identifying the center and edge of a neighborhood. Each neighborhood must be defined by its local context, meaning shapes can, and absolutely do, vary. Edges may be delineated by high speed thoroughfares (such as within Chicago’s vast grid), steep slopes and natural corridors (as found in Los Angeles), or other physical barriers.
Great neighborhoods are walkable, drivable, and bike-able with or without transit access. But, these are just modes of transportation. To be socially connected, neighborhoods should also be linger-able, sit-able, and hang out-able.
Great neighborhoods have a variety of civic spaces, such as plazas, greens, recreational parks, and natural parks. They have civic buildings, such a libraries, post offices, churches, community centers and assembly halls. They should also have a variety of thoroughfare types, such as cross-town boulevards, Main Streets, residential avenues, streets, alleys, bike lanes and paths. Due to their inherent need for a variety of land uses, they provide many different types of private buildings such as residences, offices, commercial buildings and mixed-use buildings. This complexity of having both public and private buildings and places provides the elements that define a neighborhood’s character.
The livability and social aspect of a neighborhood is driven by the many and varied communities that not only inhabit, but meet, get together, and socialize within a neighborhood. Meaning “friendly, lively and enjoyable,” convivial neighborhoods provide the gathering places — the coffee shops, pubs, ice creme shops, churches, clubhouses, parks, front yards, street fairs, block parties, living rooms, back yards, stoops, dog parks, restaurants and plazas — that connect people. How we’re able to socially connect physically is what defines our ability to endure and thrive culturally. It’s these connections that ultimately build a sense of place, a sense of safety, and opportunities for enjoyment… which is hard to maintain when trying to update a community plan without utilizing the Neighborhood Unit as the key planning tool.