HCM-87 — designated 1971-07-07
Raphael Residence
1353 Alvarado Terrace
public open-data signals are too weak to classify; designation may be load-bearing via procedural friction, may be recognition only — rubric cannot tell without a demolition-pressure proxy
cannot classify — public open-data signals are too weak. would need a demolition-pressure proxy to resolve.
street view ↗ satellite ↗ big orange landmarks ↗ (bariscale, 2007) (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 4 neighborhood health — median household income, distress indicators, displacement risk.
- F. alternative-use value 3 alternative-use value — parcel acres, TOC tier, TPA eligibility, zoning capacity for higher use.
overall confidence: unknown
Site
- lat / lon
- 34.04530, -118.28172
- parcel acres
- 0.2797706923220221 (inferred)
- typology
- sfr
- TPA / TOC
- yes — tier 2
- 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
- active
- vacancy proxy basis
- single permit within 5y
- last permit
- 2022
- permits last 24mo
- 0
- code complaints 24mo
- 0
- CSR open cases
- 0
- 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)
- $62,632
- 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
- partial
- building type
- sfr
- overall condition
- distressed
- type-1 indicators (industrial obsolescence)
- chain link perimeter
- type-2 indicators (residential distress)
- boarded windows
- notes
- The structure at heading 270° shows a boarded upper window and is enclosed by chain-link and iron fencing, indicating a distressed or partially vacant condition.
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
- 6037224310
- CalEnviroScreen overall percentile
- 76.4 (decile 8)
- cleanups percentile
- 50.3
- groundwater threats percentile
- 0.0
- hazardous waste percentile
- 30.2
- toxic release percentile
- 80.2
- lead exposure percentile
- 99.7
- EnviroStor cleanup sites nearby
- —
- in CGS liquefaction zone
- no
- type-1 contamination probability (fused)
- 0.40 — low
- type-2 structural-risk probability
- 0.20 — low
Narrative
history
hcm-87, designated the raphael residence, is a single-family residence whose precise construction date, original architect, and full ownership history are not recoverable from currently available records. no architect prominence data has been indexed, and the property does not appear on the national register of historic places. the specific circumstances of its hcm designation — including the city council action date, the nominating party, and the stated basis for cultural or architectural significance — are not documented in the fetched dataset, making any detailed provenance account speculative. major events associated with the property, including alterations, notable occupants, or incidents of historic significance, are similarly unverifiable at this time. all historical claims beyond the fact of hcm designation are therefore marked uncertain, and this narrative reflects the absence of primary source material rather than a positive finding of insignificance.
architectural significance
the raphael residence is classified as a single-family residence (typology: sfr), but no stylistic attribution, construction date range, or comparable extant examples have been identified in the fetched data. without architect attribution or photographic survey data, it is not possible to place the structure within a recognized los angeles architectural lineage — whether craftsman bungalow, spanish colonial revival, mid-century modern, or otherwise. comparable hcm-designated sfrs in los angeles span a wide range of periods and styles, and the absence of any distinguishing data here means that architectural significance cannot be independently confirmed or refuted. field inspection and archival research (permit records, sanborn maps, original deed documentation) would be necessary to characterize the structure's design merit.
neighborhood context
the tract in which the raphael residence is located recorded a median household income of $62,632, which sits below the citywide los angeles median and places the neighborhood in a moderately stressed economic tier — captured by an axis e score of 4 out of 10. population in the tract declined by approximately 670 residents over the measured five-year period, a signal of either housing contraction, household size reduction, or outmigration that warrants attention. no transit priority area or toc tier designation was returned for the parcel, limiting its redevelopment calculus. the 311 externality load at the immediate parcel level appears negligible — zero encampment, dumping, and graffiti incidents were recorded — suggesting the hcm itself is not actively generating neighborhood-level harm, though the broader tract context shows underlying stress consistent with a transitional or modestly declining district. | metric | value | |---|---| | census tract | 06037224310 | | median hhi | 62632 | | 5yr δ population | -670 | | 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, reflecting ambiguity: without nrhp listing, known architect prominence, documented owner investment, or evidence of adaptive reuse demand in the submarket, there is no positive basis for concluding the structure would attract market-driven preservation interest. a score of 5 is a genuine midpoint reflecting uncertainty rather than a positive or negative finding. axis b (tourist/cultural currency) scores 0, but confidence is unknown — no google review data, wikipedia pageviews, walking tour inclusion, or nps designation was returned. this is a data absence, not a confirmed finding of zero cultural visibility; however, for a private sfr this null result is plausible. axes c and f score 0 each at unknown confidence due to missing mills act, htc, parcel acreage, zoning capacity, and tpa/toc data — these are the most analytically limiting gaps in the dataset and prevent any honest assessment of subsidy efficiency or redevelopment upside. axis d scores 0 at medium confidence, which is a positive finding: observable 311 signals (encampments, dumping, graffiti) are all zero within the relevant proximity window, meaning no documented negative externality load is attributable to this hcm. axis e scores 4 at high confidence, driven by the acs median hhi of $62,632 and a five-year population decline of 670 — both reliable tract-level figures indicating a district under modest but real pressure. the candidate flag conditions require a ≤ 4, b ≤ 3, c ≥ 6 or d ≥ 6, e ≤ 5, f ≥ 6, and overall confidence ≥ medium. this hcm fails the candidate threshold on multiple axes: a scores 5 (above the 4-point ceiling), and both c and d score 0 (neither meets the distress floor of 6). critically, overall confidence is rated unknown due to pervasive data gaps across b, c, and f. the candidate flag cannot be responsibly applied. the reassess flag is the correct output given the combination of genuine mid-range ambiguity on axis a, high-confidence neighborhood stress on axis e, and the inability to score axes c and f — conditions that jointly demand field verification and records research before any terminal classification.
sources
- la311: https://data.lacity.org/resource/h65r-yf5i.json?$where=within_circle(location%2c%2034.045295589178515%2c%20-118.28172175611168%2c%20152)%20and%20createddate%20%3e%20'2024-05-10'&$limit=1000 --- _generated by hcm-1200 orchestrator on 2026-05-10t22:36:51.856z._