HCM-424 — designated 1989-03-31
Apartment Building
626 Burnside Avenue
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 ↗ (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 8 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
- 34.06409, -118.34907
- parcel acres
- 0.17971023998769317 (inferred)
- typology
- multifamily
- 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
- unknown
- vacancy proxy basis
- no signal
- last permit
- —
- permits last 24mo
- 0
- code complaints 24mo
- 0
- CSR open cases
- 2
- 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)
- $87,731
- 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
- multifamily
- overall condition
- well maintained
- other indicators
- none visible
- notes
- The white Art Deco/Moderne apartment building at 626 Burnside Avenue is clearly visible in the eastward view, appearing well-maintained with clean facade, trimmed hedges, and no visible distress indicators.
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
- 6037215101
- CalEnviroScreen overall percentile
- 46.9 (decile 5)
- cleanups percentile
- 4.1
- groundwater threats percentile
- 26.2
- hazardous waste percentile
- 89.7
- toxic release percentile
- 75.7
- lead exposure percentile
- 62.6
- EnviroStor cleanup sites nearby
- —
- in CGS liquefaction zone
- no
- type-1 contamination probability (fused)
- 0.47 — moderate
- type-2 structural-risk probability
- 0.20 — low
Narrative
history
hcm-424 is designated in the city of los angeles historical cultural monument registry as an apartment building (typology: multifamily). no build date, architect of record, or original-use narrative is available in the fetched data record, and no supplementary documentation — such as a mills act contract, nrhp listing, or htc application — has been located that would anchor a construction timeline. the building's designation history, including the date of hcm conferral and the findings of the cultural heritage commission at that time, could not be retrieved from available sources. any claims about original construction date or early occupancy would be speculative and are omitted here pending archival research. no major events, ownership transfers, or adaptive-reuse episodes are documented in the current data pull.
architectural significance
the architectural style, period, and distinguishing features of hcm-424 cannot be characterized from available data. no architect of record is associated with the parcel, and no photographic, permit, or stylistic metadata was returned. comparable extant examples in the los angeles multifamily stock — whether beaux-arts courtyard apartments of the 1910s–1920s, spanish colonial revival bungalow courts, or mid-century modernist stacked flats — cannot be identified without physical documentation. field inspection and review of the original hcm nomination file are prerequisite to any defensible architectural characterization.
neighborhood context
the tract surrounding hcm-424 presents a relatively stable, moderate-to-upper-middle-income demographic profile. the acs-derived median household income for the tract is $87,731, placing it well above the citywide median and consistent with a district that is neither distressed nor in acute transition. five-year population change registers a net gain of 173 persons, indicating modest but positive growth rather than decline or displacement pressure. the 311 externality load associated directly with the parcel is low: zero encampment, dumping, or graffiti calls are recorded. transit proximity and toc/tpa tier are undocumented in the current data pull, which limits conclusions about near-term development pressure, but the income and stability indicators suggest a submarket that is not in crisis. | metric | value | |---|---| | census tract | 06037215101 | | median hhi | 87731 | | 5yr δ population | 173 | | 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 (would_survive_without_protection) scores 5 at medium confidence, reflecting a genuinely ambiguous counterfactual. the building carries no nrhp listing, no identified prominent architect, and no documented mills act or other subsidy that would signal an owner committed to long-term preservation independently of hcm status. against that, the surrounding submarket's median hhi of $87,731 and positive population trajectory suggest that acquisition for demolition is not financially compelled by neighborhood distress. without parcel acreage, zoning capacity, or toc tier data, the redevelopment upside cannot be quantified, leaving the survival probability in genuine mid-range territory. axis b (tourist/cultural currency) scores 0: no google reviews, no wikipedia pageview data, no walking-tour inclusion, and no nps designation are recorded. there is no evidentiary basis for claiming outside visitation, and the absence of any such data is itself informative for a multifamily residential building. axes c and d (subsidy efficiency and externality load) both score 0. for c, the absence of a mills act contract, federal htc, and any vacancy or code-complaint data means no subsidy is being consumed and no efficiency judgment is possible — the score reflects data absence rather than confirmed good performance. for d, the 311 signals (encampment, dumping, graffiti) are all zero, which at medium confidence indicates a low negative-spillover profile, though the absence of fire-call and code-complaint records prevents a complete picture. axis e (neighborhood health) scores 8 at high confidence, the strongest and most reliable score in the set, grounded in the $87,731 median hhi and 173-person net population gain — both objective, tract-level acs figures that support a characterization of underlying district health above the distress threshold. axis f (alternative use value) scores 0 because parcel acreage, zoning capacity, and toc/tpa tier are all null; no redevelopment potential estimate is supportable. the candidate flag conditions require a ≤ 4, b ≤ 3, either c ≥ 6 or d ≥ 6, e ≤ 5, and f ≥ 6, all at medium-or-better confidence. hcm-424 fails on at least three gating conditions: a scores 5 (above the 4-point ceiling), e scores 8 (well above the 5-point ceiling indicating a healthy tract rather than a distressed one), and f scores 0 (below the 6-point floor). the overall confidence rating is 'unknown' because axes b, c, and f return unknown confidence, which itself disqualifies the candidate designation under the confidence_min: medium requirement. the reassess flag is therefore the correct output — not because the building demonstrates mixed preservation merit, but because the data record is materially incomplete and several axis scores are driven by absence of evidence rather than affirmative findings. a field inspection, archival research into the nomination file, and parcel-level zoning and ownership data are necessary before any definitive classification is possible.
sources
- la311: https://data.lacity.org/resource/h65r-yf5i.json?$where=within_circle(location%2c%2034.064090205108656%2c%20-118.34907144437739%2c%20152)%20and%20createddate%20%3e%20'2024-05-11'&$limit=1000 --- _generated by hcm-1200 orchestrator on 2026-05-11t01:17:08.728z._