Photograph of San Luis Obispo Octagon Barn — Photograph by Bishoppeak, Public domain. Via Wikimedia Commons.

Pereira Octagon Barn

Listed on the National Register of Historic Places in 2014. 12 historic topographic surveys show this location, the earliest from 1897.

From the record

One of 32 National Register listings published here for San Luis Obispo County · listed in 2014 · category: Building.

Sources: the National Register database, National Park Service · the Wikipedia article

The listing

What is counted as historic. The nomination lists 1 building as contributing to the listing.
Address. 4400 Octagon Wy., San Luis Obispo, 93401
When was it listed? January 2014
Category. building
Census division. San Luis Obispo
National Register reference number. 13001068 - assigned by the National Park Service when the property was listed.

Then and now

1897 to 1998

The ground this property stands on, surveyed 101 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet covering Pereira Octagon Barn, surveyed 1998

Topographic sheet covering Pereira Octagon Barn, surveyed 1897

Fires near this property

292 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 292 fires within 5 miles of Pereira Octagon Barn between 1992 and 2020, burning about 8,555 acres in total. None started naturally. 11 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

Reported cause	Fires
Missing data/not specified/undetermined	119
Equipment and vehicle use	109
Debris and open burning	15
Smoking	11
Arson/incendiarism	11
Misuse of fire by a minor	10
Power generation/transmission/distribution	8
Recreation and ceremony	7
Railroad operations and maintenance	2

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Date	Cause	Size	Reported by	Name on the report
9 September 1994	Equipment and vehicle use	under an acre	San Luis Obispo Unit	SLU 3082
8 September 2003	Equipment and vehicle use	2.0 acres	San Luis Obispo Unit	STENNER
7 September 2019	Equipment and vehicle use	under an acre	San Luis Obispo Unit	JOHNSON
7 September 2001	Equipment and vehicle use	under an acre	San Luis Obispo Unit	CASLU04171
6 September 2019	Misuse of fire by a minor	under an acre	San Luis Obispo Unit	not named
5 September 2014	Smoking	under an acre	San Luis Obispo Unit	OCONNOR WAY /W FOOTHILL B
4 September 2009	Missing data/not specified/undetermined	1.0 acres	San Luis Obispo Unit	OSOS
30 September 2011	Missing data/not specified/undetermined	under an acre	San Luis Obispo Unit	ONTARIO RD / SAN LUIS BAY

Every fire recorded in San Luis Obispo County

Mines and quarries near this property

10 of 40 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 40 workings within 5 miles of Pereira Octagon Barn: 18 past producers, 8 occurrences, 7 producers, 6 prospects. 7 still produce. What was taken out: Manganese, Sand and Gravel, Construction, Chromium, Stone, Crushed/Broken. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Site	Commodity	Status	Recorded
Barnaberg Mine	Magnesite	Producer
Barneberg Mine	Manganese, Iron, Gold, Silver, Mercury	Producer
Los Penascos Ranch Deposit	Diatomite	Occurrence
Porfumo Canyon Iron Occurrences	Iron	Occurrence
Prefumo Canyon Prospects	Iron, Manganese	Prospect	1942
San Luis Brick Works, Inc.	Clay	Producer
Staneuche Mine	Manganese, Silica	Past Producer	1917, 1918
Yoakum Tract	Gold, Silver, Copper	Occurrence
Yoakum Tract	Copper, Silver, Gold	Prospect
Bishop'sS Peak Quarry	Stone, Crushed/Broken	Past Producer

Every working recorded in San Luis Obispo County

Storms near this property

8 since 1998

Regional context, not property-specific evidence. The National Weather Service names San Luis Obispo, the town this property stands in, in 8 storm reports between 1998 and 2001: 7 flood, 1 tornado. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

When	Event	Place named	Harm	What the report says
January 1999	Flood	San Luis Obispo	-	Urban flooding, along Los Osos road, was reported in the city of San Luis Obispo.
May 1998	Tornado (F0)	San Luis Obispo	-	A small tornado developed over the city of San Luis Obispo. The tornado knocked out power to several hundred homes. Also, four homes were damaged, including a home struck by a fallen cypress tree.
March 2001	Flood	San Luis Obispo	-	no account filed
February 1998	Flood	San Luis Obispo	-	no account filed
February 1998	Flood	San Luis Obispo	-	no account filed
March 1998	Flood	San Luis Obispo	-	no account filed
February 1998	Flood	San Luis Obispo	-	no account filed
February 1998	Flood	San Luis Obispo	-	no account filed

Every storm recorded in San Luis Obispo County

Maps showing this location

12 surveys

United States Geological Survey topographic sheets whose coverage includes this point. Matched by taking the coordinate the National Park Service records for this property, then testing that coordinate against the published boundary of every sheet.

1897 USGS Arroyo Grande quadrangle1:62500 - 5 printings
1900 USGS San Luis quadrangle1:125000 - 4 printings
1942 USGS Arroyo Grande quadrangle1:62500 - 3 printings
1947 USGS San Luis Obispo quadrangle1:250000
1948 USGS San Luis Obispo quadrangle1:250000
1952 USGS Arroyo Grande quadrangle1:62500 - 3 printings
1956 USGS San Luis Obispo quadrangle1:250000 - 5 printings
1957 USGS San Luis Obispo quadrangle1:250000
1958 USGS San Luis Obispo quadrangle1:250000
1965 USGS Pismo Beach quadrangle1:24000 - 4 printings
1981 USGS San Luis Obispo quadrangle1:100000 - 3 printings
1998 USGS Pismo Beach quadrangle1:24000

Listed places nearby

6 within 8 miles

Other National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.

Property	Distance	Listed
Pacific Coast Railway Company Grain Warehouse	2.6 miles	1988
Myron Angel House	2.9 miles	1982
Robert Jack House	2.9 miles	1992
Tribune-Republic Building	3.0 miles	1993
San Luis Obispo Carnegie Library	3.1 miles	1995
Ah Louis Store	3.3 miles	2008

Sources for this property

National Archives record	The nomination case file for reference 13001068 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
San Luis Obispo County	All 32 listed properties in this county.

Provenance

Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.