Editing Ladd's Addition (section)

{{Short description|Historic district in Portland, Oregon, U.S.}}
{{Use American English|date=January 2025}}
{{Use mdy dates|date=August 2023}}
{{Infobox NRHP
 | name = Ladd's Addition Historic District
 | nrhp_type = hd  | nocat = yes  
 | image = Laddsmap.jpg
 | caption = Brick map of Ladd's Addition that was at the corner of SE 34th Avenue and SE Madison Street until roughly 2018.
 | location = [[Portland, Oregon|Portland]], [[Oregon]]
 | coordinates = {{coord|45.508539|-122.649413|region:US-OR_type:landmark|format=dms|display=inline,title}}
| locmapin = <!-- Portland -->
 | map_caption = Location of Ladd's Addition in Portland
 | map_alt = Locator map
 | area = {{convert|126|acre|km2}}
 | built = {{start date|1905}}&ndash;{{end date|1930}}<ref name="nps"/>
 | architect =
 | architecture = 
 | added = August 31, 1988
 | refnum = 88001310
 | mpsub = {{efn|Although Ladd's Addition has not been formally, administratively associated with a National Register multiple property submission, it was featured in the background documentation for the Historic Residential Suburbs in the United States, 1830–1960, MPS.<ref name="SuburbsMPS">{{Citation | last1 = McClelland | first1 = Linda Flint | last2 = Ames | first2 = David L. | last3 = Pope | first3 = Sarah Dillard | date = December 22, 2004 | title = National Register of Historic Multiple Property Documentation Form: Historic Residential Suburbs in the United States, 1830–1960 | url = {{NRHP url|64500838}} | access-date = December 23, 2016 | format = PDF }}.</ref>}}
}}
'''Ladd's Addition''' is an inner southeast historic district of [[Portland, Oregon]], United States.  It is Portland's oldest planned [[residential development]], and one of the oldest in the [[western United States]].<ref name="nps"/> The district is known in Portland for a diagonal street pattern, which is at odds with the rectilinear grid of the surrounding area.  Roughly eight blocks (east-west) by ten blocks (north-south) in size (by reference to the surrounding grid), Ladd's is bordered by SE [[Hawthorne, Portland, Oregon|Hawthorne]], Division, 12th, and 20th streets. It is part of the [[Hosford-Abernethy, Portland, Oregon|Hosford-Abernethy]] [[neighborhood association]].