HCM-423 — designated 1989-03-31
Apartment Building
607-613 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 3 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
- 34.06458, -118.34970
- parcel acres
- 0.17937204898700246 (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
- yes — see contract details below
- 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 historic apartment building is clearly visible at heading 270°, showing a well-maintained multi-story structure with ornate architectural details, lush landscaping, 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)
- 0.44 — moderate
- type-2 structural-risk probability
- 0.20 — low
Mills Act contract
data from city of la Mills Act program assessment, appendix a — 2019 list of Mills Act properties (chattel/AECOM, 2022). matched to this HCM by HCM number.
- ma contract number
- 9823226024
- ma contract year
- 1998
- property use type
- Multi-family
- 2019 owner savings (annual)
- $0
- 2019 la city revenue loss (annual)
- $0
- percentage of savings
- 0.0% (no savings)
- AECOM equity index score
- 7.61
- AECOM equity category
- low barriers
- designation type
- hcm
Narrative
history
hcm-423 is recorded in the city of los angeles historic cultural monument inventory as an apartment building (typology: multifamily). no build date, architect of record, or original-use documentation was returned in the fetched dataset, and no national register of historic places listing exists for this property. the absence of architect prominence data and assessed-value figures means the construction period, commissioning party, and any notable occupancy history cannot be stated with confidence. no major events, designations, or documented alterations are on record in the data queried for this analysis. all historical claims beyond the bare inventory record are indeterminate at this time and require archival follow-up with the office of historic resources case file.
architectural significance
the fetched dataset returns no style classification, no architect attribution, and no comparable-extant-examples signal for hcm-423. without those inputs, a defensible characterization of the building's architectural language, period of significance, or relationship to broader multifamily typologies in los angeles — such as the courtyard bungalow, the dingbat, the pre-war streamline moderne apartment block, or the postwar garden-court form — cannot be made from the available data. field documentation or review of the original hcm nomination form is required before any architectural assessment can be offered.
neighborhood context
the tract surrounding hcm-423 registers a median household income of $87,731 and a five-year population increase of 173 persons, both indicators of a stable to modestly growing district. the 311 externality signals (encampment, dumping, and graffiti counts within 500 feet over 24 months) all return zero, consistent with a low-distress immediate environment. these figures produce a high-confidence neighborhood health score of 8 out of 10, meaning the underlying district does not exhibit the economic fragility or block-level deterioration that would independently justify heightened preservation intervention or elevate concern about the hcm's long-term context. | 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. the building carries no nrhp listing, no identified architect prominence, and no documented recent owner investment. the score reflects a genuinely uncertain counterfactual: a generic multifamily structure in a higher-income, stable tract is not obviously threatened by demolition pressure, but neither does it possess the market-legible cultural cache that would deter a motivated owner from pursuing redevelopment. this is a coin-flip estimate and the primary reason the flag is reassess rather than a more definitive recommendation. axis b (tourist/cultural currency) scores 0, but confidence is unknown — no google review data, wikipedia pageview data, walking-tour inclusion, or tripadvisor presence was returned. a score of 0 here reflects a data absence, not a confirmed absence of cultural draw; this axis must be populated before it can gate any recommendation. axis c (subsidy efficiency) scores 0 at unknown confidence because no mills act contract, federal historic tax credit, vacancy status, or code-complaint data was found in the dataset. a score of 0 in this context means neither positive nor negative subsidy efficiency can be assessed. axis d (externality load) scores 0 at medium confidence: all 311 subcategory counts return zero and no fire calls or code complaints are recorded, indicating the property is not currently generating measurable negative spillover onto its surroundings. axis e (neighborhood health) scores 8 at high confidence, anchored by the $87,731 median hhi and positive population trend — this is one of the two axes where the data is reliable and interpretable. axis f (alternative use value) scores 0 at unknown confidence because parcel acreage, zoning capacity, and tpa/toc tier data are all missing; the redevelopment upside of this specific parcel is entirely unquantified.
sources
- la311: https://data.lacity.org/resource/h65r-yf5i.json?$where=within_circle(location%2c%2034.06458321012698%2c%20-118.3496994094774%2c%20152)%20and%20createddate%20%3e%20'2024-05-11'&$limit=1000 --- _generated by hcm-1200 orchestrator on 2026-05-11t01:16:37.771z._