Getting your deposit back in Middlesex County, NJ: the courthouse, the boards, and who helps
You do not need a lawyer to sue for a deposit here. On the county's median rent, a full-deposit case lands in the Special Civil Part at the New Brunswick courthouse - but that depends on your deposit, not the median, and the check below settles it. The rules behind it are the state's, not the county's: New Jersey law governs the deposit in all 25 municipalities, for the 111,894 households that rent here. What is local is everything around the rule: which courthouse hears the case, which towns keep a rent board, where the landlord is registered, and who will help for free.
Where you stand
Your deadline, your numbers, and why no Middlesex County ordinance changes either.
Has your landlord missed the 30-day deadline?
Two fields, ten seconds - the math follows N.J.S.A. 46:8-21.1, the same statute in every Middlesex County town. Add your deposit to see what you can demand and which New Brunswick track the doubled claim lands on.
The rules themselves: 30 days, doubled, one and a half months
These rules come from New Jersey state law, not from the county. We checked the published code of all 25 Middlesex County municipalities against the state's 2026 survey: not one has a deposit ordinance of its own, so a landlord who tells you it works differently in New Brunswick, East Brunswick or Edison is wrong.
The Rent Security Deposit Act, N.J.S.A. 46:8-19 to 46:8-26, reads the same in every Middlesex County town. The New Jersey page has the full text and the case law; this is the short version.
- 30 days
- to return it after you move out
- 2x
- what a court awards on money wrongfully kept
- 1.5 months
- the most any NJ landlord may collect
The clock starts the day the tenancy ends - usually the day the keys go back - and runs 30 days, five business days if fire, flood or condemnation put you out. Miss it, or keep money without an itemized reason, and the court doubles what was withheld: "shall", not "may", with costs on top. The same doubling applies at the New Brunswick courthouse as anywhere in the state. The statute in full, the exemptions and the case law are on the New Jersey page.
What a deposit dispute looks like in Middlesex County, in numbers
- $1,871
- median monthly rent
- $2,807
- the most a landlord may hold on it
- 111,894
- renter households - 36% of the county
The median Middlesex County renter pays $1,871 a month, so the deposit on a median unit tops out at $2,807 - one and a half months is the state cap. If a landlord keeps all of it past the 30 days, the claim is that amount doubled, $5,613, which is over the $5,000 Small Claims line: a typical full-deposit case in this county files in the Special Civil Part, on the longer form with the higher fee. Smaller deposits - anything under $2,500 - stay in Small Claims.
Rent boards in 12 of the 25 municipalities
Rent control is the one landlord-tenant rule New Jersey towns set locally, and 12 towns in Middlesex County keep a board. None of it touches deposits - the cap and the 30 days are the state's everywhere - but a board knows its local landlords, which is worth a call when a management company has gone quiet.
The 12 Middlesex County boards, and the towns without one
| Municipality | Covers | Annual limit | Board |
|---|---|---|---|
| East Brunswick | every rental unit | Urban Consumer NY/Northeast NJ CPI except real estate taxes | Rent Leveling Board (732) 390-6816 |
| Edison | buildings of 3 or more units | 5%. Hardship or capital improvement increases may be approved by the Rent Board, but capital improvement increases shall not exceed 15% of rent. | Fair Rental Housing Board (732) 248-7259 |
| Highland Park | buildings of 3 or more units | CPI average increase over 60 month period ending in September of preceding year (NY-Northeast NJ urban consumer CPI). | Rent Leveling Board (732) 572-3400 |
| Metuchen | every rental unit | Lesser of 7.5% and the percentage difference of the CPI 90 days prior to expiration/termination of lease and 90 days prior to lease term commencement. | Rent Stabilization Board (732) 632-8509 |
| New Brunswick | every rental unit | At the expiration of a lease, base rent shall not be increased greater than the annual base rent increase percentage adopted by the rent control board. The annual base rent percentage increase for the succeeding year shall be equal to the percentage change of the CPI for All Urban Consumers from September of the preceding calendar year through August of current calendar year. Neither figure shall be less than 2.5% or exceed 5.5%. Request for "substantial rehabilitation adjustment" or hardship or capital improvement surcharge may be approved. For a vacancy adjustment upon the qualified vacation of a rental unit, maximum increase is the standard allowable increase plus 4%. | Rent Control Office (732) 745-5050 |
| North Brunswick | buildings of 2 or more units | No greater than the percentage increase in the CPI for the NY - Northeastern NJ region from March of the past year to March of the present year. Increase limited to 80% of CPI if tenants supply own heat. Increases for capital improvements, tax increases, hardship or other mandated expenditures may be approved. For manufactured home parks, the monthly base rent may increase by an amount not to exceed 90% of the percentage increase in the CPI from March of the present year, subject to not exceeding a maximum base rent of $425 per month. Maximum base rent permitted shall remain at $425 for subsequent two-year period only if the percentage increase in the CPI is equal to 5% or greater. | Rent Leveling Board (732) 247-0922 ext. 440 |
| Old Bridge | buildings of 3 or more units | Cap at CPI or 3%, whichever lower. | Rent Stabilization Board (732) 721-5600 ext. 4022 |
| Perth Amboy | every rental unit | 3%. 2.5% if tenant pays water bill. | Rent Leveling Board (732) 826-1690 ext. 4322 |
| Piscataway | buildings of 3 or more units | Lesser of CPI increase over 12 months and 6%. | Rent Leveling Board (732) 562-2300 |
| Sayreville | buildings of 3 or more units | Average CPI of preceding year over average CPI of year prior to that. Maximum of 5% and minimum of 2%. | Rent Leveling Board (732) 390-7000 |
| South Brunswick | buildings of 3 or more units | (Y+Y1+Y2+Y3+Y4) * 5=RA Y=percent change in appropriate subindex Y1-Y4= Percent change for each of four previous years as shown in the appropriate subindex RA=Rent Adjustment to be applied CPI-U for Northern New Jersey , or If landlord does not provide heat+cooking+hot water energy: CPI for Northern New Jersey All Items Less Energy | Rent Control Board (732) 329-4000 |
| Woodbridge | buildings of 5 or more units | Capped at 5% of the existing base rent for covered units (generally buildings with more than 4 units). Landlords to apply for additional increases beyond the cap through the Rent Leveling Board based on documented hardship, capital improvements, or increases in operating costs (such as taxes, utilities, or services). | Rent Leveling Board 732-634-4500 |
No rent control: Carteret, Cranbury, Dunellen, Helmetta, Jamesburg, Milltown, Monroe, Plainsboro, South Amboy, South Plainfield, South River, Spotswood. In those towns the rent is whatever the lease says, and the deposit is still capped at one and a half months of it.
One town had a board and dropped it: Middlesex (repealed June 14, 2022). An older lease may still mention the ordinance; it no longer applies, and it never touched the deposit either way.
The courthouse, and how you file
The New Brunswick window, the form your claim needs, and what it costs here.
Where a Middlesex County deposit case is filed
Deposit lawsuits go to the Special Civil Part of the Superior Court, which sits by county. You file in the county where the landlord lives or does business - not where you live - and if the landlord is out of state, in the county where the rental is. A New Brunswick tenant whose landlord runs the building from the next county over files there; a New Brunswick tenant with a New Brunswick landlord files here. The Special Civil Part window is in the Middlesex County Courthouse (Special Civil Part, 3rd Floor - Tower).
- The courthouse
- Middlesex County Courthouse (Special Civil Part, 3rd Floor - Tower)
Special Civil Part (Small Claims Section)
56 Paterson Street, New Brunswick, NJ 08903 - Phone and hours
- 732-645-4300 ext. 88381
Mon - Fri: 8:30 a.m. - 4:30 p.m. - Small Claims Section
- Claims up to $5,000. Filing fee $35, plus $5 for each additional defendant.
- Special Civil Part
- Claims up to $20,000. Filing fee $50 to $75.
The New Brunswick office in practice
Checked on September 4, 2026 against the court's own pages. Rooms, hours and phone extensions change without notice - confirm with the office before you rely on any line below.
- Special Civil Part / Small Claims line - the courthouse number above
- 732-645-4300 ext. 88381
- Mediation and arbitration
- 732-645-4300 ext. 88170
Free help inside the courthouse. The vicinage's Ombudsman office - Middlesex County Family Courthouse, 120 New Street, Room 300B, New Brunswick, NJ 08903, Law Library, 732-645-4300 ext. 88748, [email protected] - explains forms and procedure to people without a lawyer, Monday through Friday, 8:30 am to 4:30 pm. Staff cannot give legal advice, but they can tell you which form, which window, and what is missing from your file before you pay the fee.
Settling before the judge. On the hearing date the court sends both sides to a settlement conference first; many deposit cases end there with a payment plan.
Filing here: the Middlesex County layer
The procedure is the state's - what is local is the window you hand it to. Filing to judgment in New Jersey, in four steps has the sequence, the exhibit stack and the hearing itself. Here is the Middlesex County layer.
- Before you file
- Send the demand letter by certified mail first, citing N.J.S.A. 46:8-21.1 and the 30-day deadline, and give it 10 to 14 days. A judge will ask whether the landlord had a chance to pay, and the letter becomes your first exhibit.
- Your form
- Up to $5,000 it is the Small Claims kit; above that the Special Civil Part complaint. Enter your deposit in the check at the top and this page names your form.
- Where to hand it in
- The Special Civil Part window, 56 Paterson Street, New Brunswick, NJ 08903 - in person during court hours, by mail to the same address, or online through JEDS. One copy of the complaint per defendant.
- What it costs here
- $35, plus $5 for each additional defendant in Small Claims, $50 to $75 in the Special Civil Part. A fee waiver is available if you cannot afford it - ask the clerk for the form when you file.
The New Brunswick office at 732-645-4300 ext. 88381 can tell you the current wait - count on two to three months from filing to a hearing date in most vicinages.
The forms, from the court itself
Looking things up, and getting help
The landlord's legal name and address, which of 25 Middlesex County clerks holds it, and who helps for free.
Finding the landlord's mailing address
A demand letter needs an address, and the one on the lease is often a management office that has since moved. Under New Jersey's Landlord Identity Law your landlord had to register the owner's name and address - with the municipal clerk for one- and two-unit buildings, with the state for anything larger - and the clerk's copy is public. The lookup below has the clerk for every one of Middlesex County's 25 municipalities.
4 Middlesex County cities run their own rental registries on top of the state filing - an inspection or licensing office that holds the current owner and managing agent for every registered rental. Where your building is in one of them, that office is usually quicker than the clerk.
- New Brunswick · Rent Control Rental Registration (annual, Ch. 5.80 Rent Control) (Rent Control Office, Department of Planning & Development, Civic Square, 25 Kirkpatrick Street, 2nd Floor, New Brunswick NJ 08901) · 732-745-5050 (fax 732-565-7532); Housing Inspections 732-745-5075
Annual registration of most rental units ($50/unit by April 1) with the registered rent per unit; owners registering more than two units must file online. Public property list and registered rent are viewable online at https://sdl.town/NBProperties; landlord must give the tenant the most recent rent registration filing at lease or renewal; call 732-745-5050 or email [email protected] / [email protected].
- Perth Amboy · Property Registration and Certificate of Habitability (Chapter 337 Property Registration) (Department of Code Enforcement, 375 New Brunswick Avenue, Perth Amboy NJ 08861) · 732-826-0183
Registration form per rental unit (all 2-family+ properties and purchased 1-family rentals since Nov 1, 2018) including the name, address and telephone number of an individual representative of the record owner, manager or agent located in Perth Amboy reachable at any time in an emergency, and every recorded mortgage holder; certificate of habitability issued after inspection, valid one year.
- Edison · Rental Reoccupancy Certificate of Approval (inspection before each new tenant) (Division of Health, Department of Health & Human Resources, 100 Municipal Blvd, Edison NJ 08817 (Housing Section)) · 732-248-7290 (Division of Health); 732-248-7273 (Housing Section)
Landlord's per-unit inspection application ($75) filed at least 7 business days before reoccupancy; the Rental Certificate of Approval must be kept in the landlord's log book. Owner-contact fields are not shown in the guideline.
- Edison · Fair Rental Housing Board annual Multiple Dwelling Registration Statement (Ord. 17-4.9 rent control) (Edison Township Fair Rental Housing Board, 100 Municipal Boulevard, Edison NJ 08817) · 732-248-7259 (Board Secretary Pattie Leary)
Annual Multiple Dwelling Registration Packet/Statement/Application and Decontrolled Unit Registration filed by landlords of multiple dwellings (fields not itemized on the page). Page invites tenants with questions to contact the Board through the Board Secretary at 732-248-7259; the Board hears tenant complaints.
- Woodbridge · Rental Registration (single and multiple unit) with rental inspection (Bureau of Housing, Department of Planning and Development, Woodbridge Town Hall, 1 Main Street, 3rd Floor, Woodbridge NJ 07095) · (732) 602-6009 (fax 732-726-2393)
Rental Registration Form lists owner name, address, telephone and email; the person responsible for management of the unit (name, address, phone, email) if different from the owner; and every unit with tenant names and move-in dates.
Where the landlord's registration is filed: the municipal clerk
New Jersey's Landlord Identity Law makes every landlord file a registration statement - the owner's legal name and address, and the managing agent's - and for one- and two-unit buildings it is filed with the clerk of the municipality the rental is in (larger buildings register with the state Department of Community Affairs). The clerk's copy is a public record. Pick your town for the office that holds it.
All 25 municipal clerks in Middlesex County
| Municipality | Clerk's office | Phone |
|---|---|---|
| Carteret Borough | 61 Cooke Ave, Carteret, NJ 07008 | 732-541-3801 |
| Cranbury Township | 23-A North Main Street, Cranbury, NJ 08512 | 609-395-0900 |
| Dunellen Borough | 355 North Avenue, Dunellen, NJ 08812 | 732-968-3033 |
| East Brunswick Township | 1 Jean Walling Civic Center Drive, P.O. Box 1081, East Brunswick, NJ 08816 | 732-390-6850 |
| Edison Township | 100 Municipal Boulevard, Edison, NJ 08817 | 732-248-7350 |
| Helmetta Borough | 51 Main Street, Helmetta, NJ 08828 | 732-521-4946 ext. 100 |
| Highland Park Borough | 221 South 5th Avenue, Highland Park, NJ 08904 | 732-572-3400 |
| Jamesburg Borough | 131 Perrineville Road, Jamesburg, NJ 08831 | 732-521-2222 |
| Metuchen Borough | 500 Main Street, Metuchen, NJ 08840 | 732-632-8508 |
| Middlesex Borough | 1200 Mountain Avenue, Middlesex, NJ 08846 | 732-356-7400 ext. 236 |
| Milltown Borough | 39 Washington Ave., Milltown, NJ 08850 | 732-828-2100 ext. 181 |
| Monroe Township | 1 Municipal Plaza, Monroe, NJ 08831-1900 | 732-728-9800 ext. 215, 216, 217 |
| New Brunswick City | 78 Bayard St, New Brunswick, NJ 08901 | 732-745-5040 |
| North Brunswick Township | 710 Hermann Road, North Brunswick, NJ 08902 | 732-247-0922 ext. 470 |
| Old Bridge Township | 1 Old Bridge Plaza, Old Bridge, NJ 08857 | 732-721-5600 ext. 2200 |
| Perth Amboy City | 260 High Street, Perth Amboy, NJ 08861 | 732-826-0290 ext. 4018 |
| Piscataway Township | 455 Hoes Lane, Piscataway, NJ 08854 | 732-562-2310 |
| Plainsboro Township | 641 Plainsboro Road, Plainsboro, NJ 08536 | 609-799-0909 ext. 2547 |
| Sayreville Borough | 167 Main Street, Room 303, Sayreville, NJ 08872 | 732-390-7020 |
| South Amboy City | 140 North Broadway, South Amboy, NJ 08879 | 732-525-5941 |
| South Brunswick Township | 540 Ridge Road, Monmouth Junction, NJ 08852 | 732-329-4000 ext. 7313 |
| South Plainfield Borough | 2480 Plainfield Avenue, South Plainfield, NJ 07080 | 908-754-9000 |
| South River Borough | 48 Washington Street, South River, NJ 08882 | 732-257-1999 |
| Spotswood Borough | 77 Summerhill Road, Spotswood, NJ 08884 | 732-723-3502 |
| Woodbridge Township | 1 Main Street, Woodbridge, NJ 07095 | 732-602-6007 |
List from the county's own directory, checked September 4, 2026.
Free help in Middlesex County
- Central Jersey Legal Services (New Brunswick office) · 732-249-7600
317 George Street, Suite 201, New Brunswick, NJ 08901. Free civil legal help for lower-income residents, including tenant matters.
- Volunteer Lawyers for Justice · 973-645-1955
Statewide pro bono program that helps tenants draft deposit demand letters and prepare pro se complaints against landlords who kept a deposit.
- Legal Services of New Jersey hotline · 1-888-576-5529
Statewide intake line for free legal help, 1-888-LSNJ-LAW.
If it goes wrong
What losing costs, whether they can retaliate, and how a Middlesex County judgment is actually collected.
Before you file: the three things people worry about
- What if I lose?
- You are out the filing fee and the time. You are the one suing, so losing leaves you where you started and puts no eviction on your record. What losing actually costs - and the one point most failed claims turn on - is on the New Jersey suing page.
- Can the landlord retaliate?
- After a move-out, barely - the tenancy is over and you are the plaintiff. If you still rent from them, New Jersey bars reprisals for exercising a legal right. The full answer is on the New Jersey suing page; in Middlesex County the ombudsman at the Middlesex County Courthouse (Special Civil Part, 3rd Floor - Tower) and Central Jersey Legal Services (New Brunswick office) both take the question in person, for free.
- If I win, how do I get paid?
- The court does not collect for you - a judgment is an instrument you enforce, and judgments against landlords are unusually collectable. Collecting your judgment walks through levy, garnishment and liens. The writ is issued by the Vicinage 8 (Middlesex) clerk at the same New Brunswick window you filed at.
Build your case
The case builder runs on New Jersey law, which is exactly the law that applies here. It checks the 30-day deadline against your move-out date, grades each deduction, and writes the demand letter with the statute cited - the letter that becomes Exhibit A at the New Brunswick courthouse if it comes to that.
Build your case →Sources
- NJ Department of Community Affairs, 2026 Rent Control Survey (all 564 municipalities)
- Superior Court of New Jersey, Vicinage 8 (Middlesex) - 56 Paterson St, 3rd Floor, 732-645-4300 ext. 88382
- Superior Court of New Jersey, Vicinage 8 (Middlesex)
- NJ Courts, Middlesex vicinage - offices and ombudsman pages
- NJ Courts, Lawsuits $5,000 or less (Small Claims)
- Central Jersey Legal Services (New Brunswick office)
- U.S. Census Bureau, American Community Survey 2024 5-year, tables B25064 and B25003 (via Census Reporter)
- Rent Security Deposit Act, N.J.S.A. 46:8-19 to 46:8-26 (official text)
Court, board and legal-aid details checked on September 4, 2026. Phone numbers and fees change; confirm with the office before you rely on one. Not reviewed by a licensed attorney, and not legal advice.