policy study · city of Los Angeles · 2026
Los Angeles Mills Act equity analysis — per-property data from AECOM 2022 Appendix A
The Mills Act is a California property-tax abatement program designed to make historic-property restoration affordable for owners who could not otherwise carry the cost. In Los Angeles the 2019 ledger contains 929 active contracts and $20.09M in annual owner property-tax savings. The City\'s own commissioned equity analysis found that 82.6 percent of that subsidy flows to properties in the two lowest-barrier tiers of the AECOM equity index — neighborhoods where the alternative to public subsidy was always private capital, not deterioration. This page quantifies the distribution at the parcel level and surfaces five reform options the City\'s own staff has already proposed.
headline finding
On its stated terms — making restoration affordable for owners who could not otherwise sustain it — the Mills Act has failed in Los Angeles. The savings are not flowing to owners who needed the subsidy to keep a historic property standing. They flow to owners whose alternative was a private remodel paid out of pocket, because the option of letting a multi-million-dollar landmark in a high-resource neighborhood deteriorate was never on the table. Thirty-six contracts — 3.9 percent of the total — hold 63.3 percent of all savings. Twenty-six condominium contracts alone hold 33 percent. The pattern is not marginal; it is the program.
program mechanics
statute
Enacted 1972. Authorizes any city or county to enter into 10-year property-tax contracts with owners of qualified historic properties. The contract requires the owner to maintain and restore the property to defined standards; in exchange the county assessor recalculates the assessed value using a capitalized-income method instead of comparable sales.
LA opted in
The City of Los Angeles authorized Mills Act participation in 1996. Eligibility requires HCM designation, HPOZ-contributor status, or National Register listing. The program has run continuously since, with contracts auto-renewing each year unless the owner files non-renewal notice. Effective contract length is therefore indefinite.
how the math works
The Mills Act re-assesses the property at the value implied by its actual or imputed rental income, capitalized at a statutory rate. For a high-value historic property whose market value has appreciated faster than its rental income — which describes most Downtown LA landmarks — the capitalized-income value falls 30–80 percent below market. The property-tax bill drops in proportion.
who pays
The unrealized property tax is shared among LA City (≈11 percent), LA Unified School District (≈35 percent), LA County (≈30 percent), and a long tail of special districts. The $2.18M figure above is the LA city share only; the full unrealized revenue across all taxing entities is closer to $20.09M.
finding 1 · equity-tier distribution
AECOM\'s equity index, commissioned by the City as part of the 2022 program assessment, scores each property\'s census tract against access to opportunity (jobs, schools, transit, health, environmental burden). "Low Barriers" tracts are the highest-resource; "High Barriers" tracts are the lowest. The Mills Act statute does not reference the index — but the City\'s own analysis shows the program runs almost exclusively through the two highest-resource tiers. The pattern was the substantive finding of the 2022 assessment, and the parcel-level data published in Appendix A confirms it exactly.
finding 2 · property type
The 26 condominium contracts average $255,170 in annual savings — more than 35 times the median single-family contract. They concentrate in adaptive-reuse conversions of Downtown commercial landmarks: the Eastern Columbia (849 S Broadway), the Roosevelt-Million-Dollar Theatre district, the Brockman Building. Each conversion produced 100–300 individual condo units, each holding its own Mills Act contract that traveled with the unit through subsequent sales. The 47 commercial contracts show the same pattern at a smaller scale: a handful of very large landmark buildings carrying very large abatements.
finding 3 · savings concentration
The histogram makes the long tail visible. 154 contracts under $1,000 per year produce a combined 0.1 percent of total savings — administrative noise. The 36 contracts above $100,000 per year produce 63.3 percent of total savings. Any reform that grandfathers the small contracts and addresses only the top bucket can recover the bulk of unrealized revenue without disrupting the long-tail SFR ledger.
finding 4 · top 25 contracts
| # | address | HCM | type | equity tier | MA yr | annual savings | % of total |
|---|---|---|---|---|---|---|---|
| 1 | 849 S BROADWAY | 294 | Condominium | Low to Medium Barriers | 2005 | $930,382 | 4.63% |
| 2 | 971 E ELKHART PL | 1008 | Multi-family | Low to Medium Barriers | 2011 | $797,294 | 3.97% |
| 3 | 727 W 7TH ST | 355 | Condominium | Low to Medium Barriers | 2008 | $773,633 | 3.85% |
| 4 | 523 W 6TH ST | 398 | Commercial | Low to Medium Barriers | 2007 | $749,104 | 3.73% |
| 5 | 6300 W HOLLYWOOD BLVD | 664 | Condominium | Low to Medium Barriers | 2005 | $710,270 | 3.54% |
| 6 | 5300 W RODEO RD | 174 | Condominium | Low to Medium Barriers | 2010 | $657,995 | 3.28% |
| 7 | 131 W 5TH ST | 772 | Condominium | Low to Medium Barriers | 2003 | $598,692 | 2.98% |
| 8 | 1850 E INDUSTRIAL ST | 888 | Condominium | Low to Medium Barriers | 2007 | $534,776 | 2.66% |
| 9 | 601 W 5TH ST | 347 | Commercial | Medium to High Barriers | 2016 | $425,983 | 2.12% |
| 10 | 108 W 2ND ST | 873 | Condominium | Low to Medium Barriers | 2008 | $411,867 | 2.05% |
| 11 | 612 S FLOWER ST | 766 | Multi-family | Low to Medium Barriers | 2003 | $395,255 | 1.97% |
| 12 | 701 S HILL ST | 953 | Commercial | Low to Medium Barriers | 2016 | $375,299 | 1.87% |
| 13 | 558 S MAIN ST | 806 | Multi-family | Low to Medium Barriers | 2007 | $358,897 | 1.79% |
| 14 | 215 W 7TH ST | 1089 | Condominium | Low to Medium Barriers | 2017 | $332,706 | 1.66% |
| 15 | 743 S SANTEE ST | 711 | Condominium | Medium to High Barriers | 2002 | $325,086 | 1.62% |
| 16 | 600 S MAIN ST | 104 | Multi-family | Low to Medium Barriers | 2002 | $315,113 | 1.57% |
| 17 | 6253 W HOLLYWOOD BLVD | 1088 | Condominium | Low to Medium Barriers | 2016 | $312,394 | 1.55% |
| 18 | 927 S BROADWAY | 523 | Commercial | Low to Medium Barriers | 2012 | $282,985 | 1.41% |
| 19 | 1680 N VINE ST | 666 | Commercial | Low to Medium Barriers | 2012 | $273,054 | 1.36% |
| 20 | 433 S SPRING ST | 385 | Commercial | Low to Medium Barriers | 2016 | $266,435 | 1.33% |
| 21 | 649 S OLIVE ST | 354 | Multi-family | Low to Medium Barriers | 2009 | $266,102 | 1.32% |
| 22 | 800 S FLOWER ST | 789 | Multi-family | Low to Medium Barriers | 2004 | $250,498 | 1.25% |
| 23 | 1999 N SYCAMORE AVE | 921 | Multi-family | Low to Medium Barriers | 2010 | $240,256 | 1.20% |
| 24 | 416 S SPRING ST | 1029 | Condominium | Low to Medium Barriers | 2013 | $224,095 | 1.12% |
| 25 | 13401 W RIVERSIDE DR | 683 | Multi-family | Low to Medium Barriers | 2001 | $222,577 | 1.11% |
| top 25 contracts combined | $11,030,748 | 54.9% | |||||
The top contract — 849 S Broadway, the Eastern Columbia — carried $930,382 in 2019 owner savings on a property whose 2019 trended value was $128.5 million. The condo units inside the building each hold individual sub-contracts; the appendix list aggregates them to the master parcel for this row. Twenty-three of the top 25 contracts sit in the Low or Low-to-Medium Barriers equity tier. The two exceptions are 601 W 5th St (a downtown commercial property) and 743 S Santee St (a fashion district commercial property), both Medium-to-High Barriers.
finding 5 · geographic concentration
CD 14 (Kevin de León\'s district, containing Downtown LA, Boyle Heights, and Eagle Rock) holds 94 contracts and $10.04 million in annual savings — half of the citywide total. The Downtown corridor of S Broadway, S Spring, S Main, S Hill, and W 7th Street is the spine. CD 13 (Hollywood / Echo Park) and CD 4 (Hollywood Hills / Mid-Wilshire) together account for another 24 percent. The remaining twelve council districts together carry roughly a quarter of the program. The geographic concentration is what makes the equity tier finding mechanical rather than coincidental: Downtown and Hollywood adaptive-reuse condominiums are by construction in Low-to-Medium Barriers tracts.
finding 6 · prop 13 stacking
years between contract signing and most recent ownership transfer
Under Proposition 13 the assessed value resets on change of ownership — but a Mills Act contract travels with the property, not the owner. A buyer purchasing an LA Mills-Act-restricted parcel acquires the abatement automatically, with no re-vetting against the original maintenance plan, the equity index, or the original justification for the subsidy. The data shows 391 contracts (42 percent of the ledger) where the property has changed hands since the contract was recorded, and those 391 contracts carry 66.1 percent of the total annual savings. The asymmetry is structural: the windfall flows to the wealthier, more market-active end of the ledger, because those are the properties that sell. This is the closest the Mills Act comes to a double-abatement: the buyer gets a Prop 13 baseline reset and inherits an open Mills Act contract.
comparative cases
No Mills Act program
San Francisco opted out of the Mills Act entirely. Preservation runs through Mello Act, transfer of development rights, and federal historic tax credits — no property-tax abatement layer.
Mills Act with cap
Caps the assessed-value reduction and rejects contracts where 10-year maintenance plans cannot demonstrate need. Roughly 90 active contracts citywide — about 10 percent of LA's, on a city with 1/20 the population.
Mills Act + sunset review
Mills Act contracts auto-renew on 10-year terms, but city staff perform a structured non-renewal review of contracts whose properties have changed hands or where the maintenance plan is complete. Active contracts: ~1,300.
Mills Act with no income test, no renewal review, no cap
Indefinite auto-renewal. No means test. No equity tier requirement. No cap on assessed-value reduction. The 2019 ledger of 931 contracts is the result — and the equity distribution is what this study quantifies.
reform framework
Restrict new contracts to properties in Medium-to-High or High Barriers tiers per the AECOM equity index. Existing contracts in Low or Low-to-Medium tiers would non-renew at the end of their current 10-year term.
likely impact: Would redirect ~82 % of new annual savings away from the highest-resource neighborhoods.
Cap annual per-contract savings at a moving fraction of the city's median household property-tax bill — e.g. 4×. Above the cap, the unrealized revenue returns to the assessor.
likely impact: Would claw back the bulk of the $12.7 M concentrated in the 36 contracts above $100 K/year, without touching the 700 contracts under $10 K/year.
When a Mills Act property changes hands, the contract does not transfer automatically. The new owner must reapply and demonstrate need or restoration scope. This closes the Prop 13 stacking windfall — currently 391 contracts (66 % of all savings) sit on parcels whose ownership has turned over since the contract was signed.
likely impact: Would redirect roughly $13 M/yr that currently flows to inherited-windfall owners.
Every contract reports its 10-year restoration plan, completion percentage, and actual restoration spend to the Office of Historic Resources annually. Contracts that fail to deliver scheduled work are flagged for non-renewal.
likely impact: Currently zero contracts report performance to the public. This is what the city's own 2025 amendments deck flagged as the highest-leverage change.
For contracts above the means-test cap, require a minimum restoration-cost-to-property-value ratio (e.g. 5 %) over the 10-year term. Contracts unable to demonstrate that ratio either reduce their savings draw or non-renew.
likely impact: Targets the Downtown condominium and commercial cluster where annual savings of $300 K – $930 K rarely correspond to restoration work of comparable scale.
methodology
All per-property figures come from the AECOM / Chattel 2022 Mills Act Program
Assessment, Appendix A — the City\'s own ledger of 931 Mills Act contracts active in
2019. The PDF was released as part of the program assessment but never exposed as a
downloadable dataset. The per-contract list was extracted from the PDF via
pdfplumber by the HCM-1200 project and made available as
mills_act_with_sales.json in the public data tree.
AECOM\'s equity index score is the per-tract field equity_index_score in
Appendix A, with the four-tier category in equity_index_category. We
preserve AECOM\'s categorization without modification. The index combines indicators
of opportunity access (jobs, schools, transit, environmental burden, health).
Each appendix record was joined to the LA County Assessor parcel layer (current roll)
on APN. The parcel record exposes roll_land_base_year and
roll_imp_base_year, which reset on change of ownership under Prop 13.
A base year later than the Mills Act ma_year means the property has
transferred since the contract was recorded; the current owner inherited the
abatement. Base year also resets on substantial new construction, so the proxy is
strong but not perfect.
Not a model of which specific contracts to terminate. The reform options operate on the program structure, not on individual properties. The equity finding is the City\'s — surfaced in the 2022 program assessment, reaffirmed at the parcel level here. The five reforms are drawn from the City\'s own 2025 amendments deck and the comparative practice of San Diego, Pasadena, and San Francisco.
adjacent studies
The per-property data published in Appendix A of the 2022 program assessment is the authoritative City source for this study. Updates: the LA County Assessor publishes the current property roll, which the transfer-status matching uses. Subsequent program-amendment decks (2023, 2024, 2025) revise the program design but not the 2019 ledger.
