The rule for each building, not each state
Every address is placed in its legal city, then the building's own tests are applied: year built, number of units, owner-occupied. When a fact is missing, you get one question instead of a guess.
For property managers and landlords
Every building's rent rules, before the notice goes out.
Oakrule checks each of your buildings against state and city housing law, quotes the law word for word, and emails you before a rule changes.
3515 Fillmore St · San Francisco
How much can the rent go up?
Up to 1.6% until Feb 28, 2027
S.F. Admin. Code ch. 37 · quoted word for word
Every building in New Jersey
Coming up
Algorithmic rent coordination banned from Jul 1, 2027
P.L.2026, c.43 · quoted word for word
28states, with their statewide law
91official sources read
62rules, each quote checked word for word
40cities and counties with their own local rules
What you get
Check the increase before you send it
Enter the current and the new rent. See the most the law allows on that date, with the sentence that decides it, and download the notice as a PDF.
An email before the law changes
When a city sets its new yearly figure or a new law takes effect, you get one email that lists every affected building, plus a calendar feed with each date.
Proof you can forward
Each answer carries the citation, the official link, the date we read the source and the date the answer is valid for. Send the per-building report to your owners as it is.
Start with a free portfolio check
Send up to 25 addresses. We check every building and send you one page per building within two business days.
- 1Send your addressesUp to 25, with units and year built if you have them. A rent-roll export works.
- 2We check each buildingThe rules that apply today, the most the rent can go up and from when, what changes in the next 12 months.
- 3You get the pagesEvery line links to the official source. Keep them, forward them, no strings.
Pricing
The first 10 firms get 50% off for their first 12 months. Use code FOUNDING at checkout. Every plan starts with 14 days free.
Landlord
Up to 20 units
$29$290/month/year
- Every building's rules, quoted from the law
- Rent-increase check before you send
- Rent notices and letters as PDF
- Email and calendar alerts before a rule changes
- Team access for 3 people
For property managers
Portfolio
150 units included, then $1$10 per unit
$149$1,490/month/year
- Everything in Landlord
- Import buildings from a CSV or rent roll
- Next lawful increase and notice deadline per building
- Team access for 5 people
- Deadline calendar for every increase cycle
API
5,000 lookups included, then $0.03 each
From $199/month
- Rules for any covered address, as of any date
- Citation and quote with every answer
- Dated law changes for your buildings
- OpenAPI documentation
Looking up a single address stays free, for renters and landlords alike. Try it now
Get a free portfolio check
Leave your work email. We reply with where to send your addresses, and you get one page per building within two business days.
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We sent a confirmation link to . Confirm it.We'll email a link to confirm it. is already confirmed. For the free check, reply to that email with your addresses.
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Questions
Is this legal advice?
No. Oakrule gives information about public law: what the statutes and ordinances say, quoted word for word, with the official link. It is not a compliance verdict. For a decision about a specific tenancy, talk to a lawyer or your city's rent office.
Which places do you cover?
Statewide law in California, Oregon, Washington, New Jersey and Massachusetts, plus the local rules of 40 cities and counties, among them San Francisco, Los Angeles, Oakland, Santa Monica, San Diego, Berkeley, Jersey City, Hoboken, Newark, Boston and Cambridge. See every place.
How do you keep the rules current?
Every source is read again on a schedule and compared with the last version. A change goes live only after review, and every answer shows the date it is valid for.
What happens to the addresses I send?
We use them only to prepare your check. We don't sell or share them, and we delete them on request.
When can I start?
Today. Every plan starts with 14 days free. Cancel in your account before the trial ends and you pay nothing. The first 10 firms get 50% off for their first 12 months. Use code FOUNDING at checkout.