HCM-182 — designated 1978-02-01
Ivy Park Substation
9070 Venice Boulevard
market / owner / federal protection sufficient; hcm is recognition overlay
HCM not needed — building would survive without it via private value or alternative protections
street view ↗ satellite ↗ big orange landmarks ↗ (bariscale, 2008) brick (orchestrator-captured imagery is not building-aimed — use these for HITL verification)
Six-axis scores
- A. would-survive 5 probability the structure would survive market forces without HCM designation. low = needs protection.
- B. tourist currency 0 tourist and cultural currency — Wikipedia pageviews, walking-tour inclusion, public visitation evidence.
- C. subsidy efficiency 0 subsidy efficiency — Mills Act and federal HTC value vs preservation outcome. zero means no active subsidy.
- D. externality load 0 externality load — code complaints, CSR cases, 311 encampment/dumping/graffiti, vacancy duration.
- E. neighborhood health 2 neighborhood health — median household income, distress indicators, displacement risk.
- F. alternative-use value 7 alternative-use value — parcel acres, TOC tier, TPA eligibility, zoning capacity for higher use.
overall confidence: unknown
Site
- lat / lon
- 34.02648, -118.39284
- parcel acres
- 2.8301319799482427 (inferred)
- typology
- infrastructure
- TPA / TOC
- yes — tier 3
- zoning capacity
- —
- nrhp listed
- no
- architect prominence
- —
Condition + subsidy
all "condition" fields below are proxies derived from LADBS permit history, 311 CSR cases, and code complaints. none of these directly measures occupancy. the vacancy line shows the proxy value and the specific rule that produced it; readers should treat "active" as "construction permits filed recently," not "people live or work here."
- vacancy proxy
- unoccupiable
- vacancy proxy basis
- typology non occupiable
- last permit
- 2023
- permits last 24mo
- 0
- code complaints 24mo
- 0
- CSR open cases
- 1
- Mills Act contract
- no — not in la OHR appendix a (2019 list of Mills Act properties)
- federal HTC
- no
- Wikipedia pageviews 12mo
- —
- walking-tour inclusion
- no
- median hhi (tract)
- —
- assessed value
- —
Street view vision classification
claude vision analyzed 4 Google street view captures (n/e/s/w from the parcel coordinates) for visible distress indicators. this is an automated screening — false positives and negatives both happen, and "well_maintained" only means the visible facade is intact; internal structural condition is not assessable from street view.
- building visible
- yes
- building type
- infrastructure
- overall condition
- well maintained
- other indicators
- none visible
- notes
- The white Mission Revival-style Ivy Park Substation building is clearly visible in the westward-facing image, appearing well-maintained with intact windows, clean facade, and landscaped grounds.
Contextual signals (GIS)
these are contextual proxies — signals derived from spatial context, not direct measurements of the property. they help infer hidden variables (contamination probability, structural risk) that public open-data does not measure directly. source: cal OEHHA CalEnviroScreen 4.0 (cumulative pollution burden by census tract).
- census tract
- 6037270100
- CalEnviroScreen overall percentile
- 59.0 (decile 6)
- cleanups percentile
- 53.4
- groundwater threats percentile
- 59.6
- hazardous waste percentile
- 84.7
- toxic release percentile
- 78.7
- lead exposure percentile
- 19.5
- EnviroStor cleanup sites nearby
- —
- in CGS liquefaction zone
- no
- type-1 contamination probability (fused)
- 0.70 — high (CalEnviroScreen tract burden + parcel-level EnviroStor proximity both signal contamination context)
- type-2 structural-risk probability
- 0.20 — low
Narrative
history
the ivy park substation (hcm-182) is a utility infrastructure facility designated as a historic-cultural monument by the city of los angeles. precise construction date and architect of record are not confirmed in the available record; the substation is believed to date from the early-to-mid twentieth century (approximately), consistent with the period of rapid residential electrification in the ivy park district. substations of this era typically served as step-down transformer stations distributing power from high-voltage transmission lines to residential and commercial consumers, and their brick or concrete masonry construction often reflected regional utility-company architectural standards. no major documented events — fires, ownership transfers of historical significance, or adaptive reuse interventions — appear in the fetched data. the absence of nrhp listing suggests the designation rests entirely on local hcm criteria rather than a broader federal significance determination.
architectural significance
without confirmed architect attribution or a field survey in the present dataset, precise stylistic classification is not possible. infrastructure substations of comparable vintage in los angeles — such as surviving early dwp and southern california edison facilities in boyle heights, highland park, and the eastside — frequently employed utilitarian moderne or mission revival detailing, with load-bearing masonry walls, decorative cornices, and minimal fenestration suited to equipment housing. whether the ivy park substation shares these characteristics or represents a purely functional shed typology cannot be confirmed from available data alone. the absence of walking-tour inclusion, wikipedia documentation, or any tourism signal suggests the structure has not achieved recognition as a distinctive architectural example within the professional or public heritage community.
neighborhood context
tract-level socioeconomic data for the ivy park substation's immediate surroundings returned null across all acs fields in the fetched dataset, making quantitative neighborhood characterization impossible at this time. the computed axis e score of 2 — reflecting the scoring model's interpretation of underlying conditions — indicates the substation sits within a district flagged as distressed or transitional, but confidence on that axis is marked unknown, meaning the score was derived from incomplete inputs and should not be treated as reliable. the 311 externality signals (encampments, dumping, graffiti) all returned zero within 500 feet over 24 months, which either reflects genuine absence of disorder or a data-coverage gap for this parcel location. field verification of neighborhood conditions is required before any policy inference can be drawn. | metric | value | |---|---| | census tract | — | | median hhi | — | | 5yr δ population | — | | 311 within 500ft (24mo) | 0 | | encampment 311 calls | 0 | | ladbs code complaints (24mo) | — | | last permit year | — |
subsidy and condition
| field | value | |---|---| | mills act | — | | federal htc | — | | vacancy status | — |
classification reasoning
axis a (survival without protection) scores 5 at medium confidence, placing the substation in ambiguous territory: active utility infrastructure is typically retained by operating companies for functional reasons independent of hcm status, but decommissioned substations face rapid demolition or sale without legal protection. the score reflects this bifurcation — if the facility remains operationally active, hcm designation adds little survival value; if it has been decommissioned, the score could shift materially downward. no owner-investment data, adaptive reuse evidence, or comparable-example count was available to refine this estimate. axis b scores 0 with unknown confidence: there is no google review activity, no wikipedia pageview record, no walking-tour mention, and no nps designation. the substation generates no measurable tourism or cultural-currency signal. axes c and f both score 0 with unknown confidence due to complete absence of mills act contract data, federal htc participation, parcel acreage, zoning capacity, and tpa/toc tier — the four inputs most critical to evaluating subsidy efficiency and redevelopment value respectively. axis d scores 0 at medium confidence, supported by confirmed-zero encampment, dumping, and graffiti counts, though code-complaint and fire-call records were not retrieved. axis e scores 2 at unknown confidence, flagging potential neighborhood distress, but this score is unreliable given null acs inputs. the candidate flag conditions require a ≤ 4, b ≤ 3, c ≥ 6 or d ≥ 6, e ≤ 5, and f ≥ 6, all at minimum medium confidence. this record fails on axis a (scores 5, not ≤ 4), fails on c and d (both score 0, neither meets the ≥ 6 threshold), and fails the global confidence gate (overall confidence is unknown). the record therefore does not qualify as candidate under the framework's current evidence state. the reassess flag is the appropriate disposition precisely because four of six axes carry unknown confidence, the parcel's operational status is unconfirmed, and the axis a score sits at the boundary value where a single field-verified data point could shift the recommendation in either direction. for a valid re-evaluation, the following inputs are minimally necessary: confirmation of operational versus decommissioned status, parcel apn and acreage from the assessor's database, zoning designation and toc tier lookup, mills act contract search, and a 311/code-complaint pull by parcel address. until those inputs are obtained, no defensible policy recommendation beyond reassess can be issued.
sources
- la311: https://data.lacity.org/resource/h65r-yf5i.json?$where=within_circle(location%2c%2034.02647575775471%2c%20-118.39284098512675%2c%20152)%20and%20createddate%20%3e%20'2024-05-10'&$limit=1000 --- _generated by hcm-1200 orchestrator on 2026-05-10t23:22:32.762z._