Mohnike Adobe
Also known as: Ca-Sdi-8124h; Sandiego Museum of Man SDM-W-6251
Why it's listed
Built in 1910 by Charles Frederick Mohnike, this one-story adobe house at 12115 Black Mountain Road lies in the upper eastern part of Los Penasquitos Canyon Preserve in San Diego. Its walls are mud-mortared adobe brick, two courses thick, finished with cement and lime plasters over a fieldstone and concrete foundation. A wide wraparound porch covers the west and north sides. Over time the original open central courtyard was roofed over, and a board-and-batten addition was added at the rear around the 1950s. Original outbuildings survive nearby: a two-story barn, three sheds and a below-grade concrete cistern, all dating to about 1910. The property has served as a house and later as part of an equestrian center. It was listed for its architecture, as an example of Victorian Adobe and Adobe Revival building, and for its potential to yield historical information. The form reports high integrity, though the northeast wall shows moisture damage.
Significance in brief: The nomination finds the house significant under Criterion C for architecture, as a Victorian Adobe/Adobe Revival building constructed of mud-mortared adobe brick. It is also marked under Criterion D for its potential to yield information. The form states the house retains a high degree of integrity in design, setting, location, feeling, association, materials and workmanship.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 02000779, listed July 17, 2002. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 12115 Black Mountain Rd., San Diego |
|---|---|
| County | San Diego County |
| Listed | July 17, 2002 |
| Reference number | 02000779 |
| Resource type | Building |
| Period of significance | 1910 |
| Architect / builder | Mohnike, Charles Frederick |
| Architectural style | Late 19th and Early 20th Century American Movements: Victorian Adobe/Adobe Revival |
| Criteria |
|
| Areas of significance | Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Historic and current function is single dwelling. The property sits within an equestrian center, and the northeast section of the house shows moisture-related deterioration. |
| Acreage | 16 |
| Coordinates | 32.94180, -117.12598 (NPS GIS) |
What listing means for this property
National Register listing is honorary: it recognises significance and does not restrict what a private owner may do without federal money or permits. It unlocks the 20% federal rehabilitation tax credit for income-producing buildings, state credits in many states, and Section 106 review when federal agencies are involved. See what listing means in practice.
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 02000779.
- Nomination form (PDF, National Archives) — catalog entry
- Wikidata Q6020623
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.