Here's a set of steps I think I can share:
|The location to be sketched.|
|After that, basic shapes are blocked in, as well as the location of certain foreground elements, like trees.|
|I add more interior details as the sketch progresses, and more foreground elements.|
|When I'm satisfied with the amount of pencil-work, I start with ink. I tackle the cars first, as they have the potential to leave without warning!|
|From the cars I move backward through trees, signs, trash cans and parking meters before I get to the building.|
|I start in with value right away, rather than finishing the entire sketch as a contour line drawing before putting in the darks.|
The final product.
I've also just started working (okay, a month ago) on a long-term Denver project in a folding Moleskine that Linda gave me. I intend for it to be a full 360° panorama this time. I found a round concrete bench that circles a small flowerbed outside of the Brown Palace hotel which has great view in all directions.
Here's the scanned progress on that project, 4 days in: