The west side of the 800 block of Ninth St. remained undeveloped until the late 1940s. At that point, a multi-storefront structure was built, followed by two detached structures. From the 1950 city directory:
803 Walsh’s Drive In Restaurant
805 Sears Launderette
Piedmont Coffee Service Inc
Carolina School of Watch Making
807 Vendapak Co
809 Carolina Baseball League
811 Sears Wholesale Co Inc confrs
813-15 Royal Sandwich & Food Company
(I believe "confrs" stood for "confectioners")

813-815 Ninth St., the Royal Sandwich and Food Co., looking northwest from Ninth St. ~1950
(Courtesy
The Herald-Sun Newspaper)
The description of the Royal Sandwich and Food Co. from "Durham and Her People"
"Royal Sandwich and Food Company... was organized in 1940 by Taylor A. Davis.... During 1937, Mr. David came to Durham as a distributor for a large baking concern. He later went with a a local sandwich manufacturer prior to entering business for himself. [He and his family] reside at 1421 Pennsylvania Ave. [The company] is housed in a commodious plant, amply equipped to give real sandwich value down to the last penny. They cover Durham and surrounding territory with all of their food products. The firm maintains a 'Grade A' health rating. Every kind of sandwich available is made fresh daily and delivered to their many customers. In addition to sandwiches, Royal Sandwich and Food Co. distribute donuts, buns, cakes, Long Johns, and Short Johns."
(I'm not sure what either a Long John or a Short John is- anyone?)

Looking west, ~1950.
(Courtesy
The Herald-Sun Newspaper)

Aerial view of the block, 1959.
(Courtesy
The Herald-Sun Newspaper)
By 1965, the business lineup was:
803 Lloyd’s Dixie Dog restr
805 Electrical Supply Co of Durham
807 Tucker’s Service Elec Appls
809 Watson Electrical Construction Co of Durham
811 Royal Sandwich & Food Co Inc
By 1970, Royal Sandwich was out of business:
801 Vanity Nook
803 Maddux Supply Co elec sup
805 Watson Electrical Construction Co Of Durham
807 Watson Electric Construction Co Of Durham (Whse)
809 Maddux Supply Co (Whse)
811 Maddux Supply Co (Whse)
813 Graham Knitwear clo
815 Lane Auto Supply Co Inc
1975:
801 Vanity Nook
803 Stephenson Inc bldg sup
805 Watson Electrical Construction of Durham
811 Casey Printing Inc
813 Place Lounge The
815 Cal Tone Paints
1980:
801 House of Hair The
803 Stephenson Inc bldg sup
807 Dataflow Inc
815 Cal-Tone Paint & Decorating Center
1985:
801 House of Hair The
803 Stephenson Inc bldg sup
807 Dataflow Inc
815 Vacant
1990:
801 Pizza Palace Storage
803 Stephenson Inc bldg sup
807 Dataflow Companies Inc
815 Dataflow Inc (Overflow)
I can't really picture these buildings during the 1990s - I'm not sure if they were mostly empty, or there was simply nothing there that attracted my attention. Glenn Dickson, owner of the property, developed a plan to demolish the existing buildings and redevelop the property with an infill development. The existing buildings were torn down in 2001.

Looking south from Green St., 02.06.01
(Courtesy
The Herald-Sun Newspaper)
The building, once completed, was one of the very, very few examples of new, pedestrian-scale urban infill architecture in Durham.

Overall, it's a nicely done development - I'd prefer to see it extend to the corner of Ninth and Green, rather than set back from that corner with a surface parking lot, and I'm not a huge fan of the way the grade separation is handled between storefront and sidewalk. If anything, I'd prefer that the development was taller. But given how terrible we are at executing decent new construction in Durham, I'd call these quibbles.
Find this spot on a Google Map.
36.011352,-78.922282