Bolthole Index

Westchester County, New York

Building permits, zoning and septic rules in New Rochelle, New York

New Rochelle, New York (Westchester County) requires a building permit for most construction, and the city's Bureau of Buildings handles it12. The city also runs its own zoning code, with requirements that vary by zoning district3. We could not confirm who issues septic permits inside city limits; the Westchester County Department of Health reviews new septic systems countywide4.

At a glance

Building permit
Required inside city limits, issued by the city's Bureau of Buildings12
Zoning
Citywide zoning code; every tax lot sits in a zoning district3
Building code
New Rochelle Building Code built on the New York State codes5
Inspections and certificate of occupancy
Inspections during construction; new buildings need a certificate of occupancy before use67
Septic
County health department reviews new systems; city-limits rule unconfirmed4
RV or tiny home living
Not confirmed; tents on private land beyond three days need a temporary-structure permit8
Minimum lot size
Set by district, for example R1-20 and R1-15 one-family districts9

Who to call

Building permits

City of New Rochelle Bureau of Buildings

Building permits, inspections and code enforcement inside New Rochelle city limits

(914) 654-2035

515 North Ave. New Rochelle , NY 10801

Building permits

City of New Rochelle Building Permits page

How to apply for a building permit and which small jobs need none

Zoning

City of New Rochelle Zoning (Department of Buildings)

Zoning code questions, zoning applications and Zoning Board of Appeals variances inside New Rochelle

(914) 654-2035

Septic permits

Westchester County Department of Health, Realty Subdivision and Land Development Review

Reviews and permits every subdivision plan and new subsurface sewage treatment system for commercial and residential use across Westchester County

148 Martine Avenue, White Plains, NY 10601

Septic permits

Westchester County Department of Health, Septic System Management

Licenses septic contractors, handles septic repair and records requests, and runs the county's septic rehabilitation programs

(914) 995-7285

148 Martine Avenue, White Plains, NY 10601

Contact details are copied from each office’s official page and were checked against it on October 24, 2026.

Off-grid gear

Going off-grid in New Rochelle means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in New Rochelle, New York?

Yes, for nearly all construction. Inside New Rochelle city limits, no one may build, enlarge, alter, demolish, excavate or change the use of a building or structure without first filing an application with the Building Official and obtaining a building permit, except as the code exempts1. The city's own Building Code is built on the Building Code, Residential Code and Energy Conservation Construction Code of New York State5.

The city's permit page says a building permit is a New York State requirement rather than a local ordinance10. Some small jobs need no permit, such as resurfacing an existing one- or two-family driveway without extending it10. State rules also let a local authority exempt listed categories such as small detached sheds, so confirm any shed or accessory structure with the Bureau of Buildings11.

Who issues building permits in New Rochelle, and how do you reach them?

New Rochelle's own Bureau of Buildings, part of the Department of Buildings, issues building permits and enforces the building code inside the city2. The bureau is at 515 North Ave., New Rochelle, NY 10801, and its phone number is (914) 654-20352. The city has a new online permit system, and its permit page explains how to apply10.

An application goes on the form the Building Official provides, signed and notarized or acknowledged before a commissioner of deeds, with the required fee12. In Westchester County, building-code administration ordinarily runs through the local city, town or village, so a New Rochelle permit does not come from the county planning counter13.

Does New Rochelle have zoning, and what does it mean for lot size and setbacks?

Yes. New Rochelle has a citywide zoning code, and every tax lot in the city sits in a specific zoning district3. Each district sets its own height, bulk, floor area, coverage, setbacks and lot area, along with permitted uses3. Westchester County has no zoning of its own; New York gives zoning power to cities, towns and villages, not counties14.

For one-family residence districts, the city's schedule sets lot area by district: R1-20 requires 20,000 square feet and R1-15 requires 15,000 square feet9. Setbacks, coverage and height are also set district by district in the same schedule151617. Find your parcel's district first, then read that row. Questions go to the Department of Buildings at (914) 654-20353.

We could not confirm the city's rules on accessory dwelling units, tiny homes or manufactured homes. Ask the Department of Buildings before you plan one.

How do septic permits work in New Rochelle?

We could not confirm who issues septic permits for a property inside New Rochelle city limits, or whether a given lot even uses septic. For Westchester County as a whole, the County Department of Health's environmental engineers review and permit every new subsurface sewage treatment system for commercial and residential use4. The same department licenses septic contractors18.

New York's statewide approach is mixed: a city or county health department, or a state district health office, may need to approve a system before construction19. Building permits stay with the city; septic does not move to the city by default. Before you buy a lot that is not on public sewer, call the County Department of Health at (914) 995-728518.

Can you live in an RV or tiny home on your land in New Rochelle?

We could not confirm an operative rule for living in an RV or tiny home on private land inside New Rochelle, so do not assume it is allowed. The one rule we verified concerns tents: a tent on private property for more than three days falls under the city's temporary-structure permit process, which requires compliance with the State Code and the Zoning Code and a removal agreement8.

Statewide campground rules, such as the 14-night limit at state campgrounds, do not answer whether you can live in an RV on your own lot20. Ask the Department of Buildings at (914) 654-2035 before parking or placing any dwelling3.

Building a home in New Rochelle: the steps, in order

  1. Look up your parcel's zoning district and its lot-area, setback and coverage rules with the Department of Buildings, (914) 654-203539.
  2. Check whether septic or public sewer serves the lot, and if septic, contact the County Department of Health4.
  3. Apply for a building permit with the Bureau of Buildings, using the form, notarized signatures and fee the Building Official requires12.
  4. Schedule inspections before any work is enclosed or covered, and at each stage of construction6.
  5. Get the certificate of occupancy: no new building may be used or occupied until the Building Official issues it7.

What stays with Westchester County, and what to check before you buy

Inside New Rochelle, the city decides zoning and building permits, while Westchester County and the state handle septic review and statewide codes34. For land outside the city, see the Westchester County page; county-level rules there do not describe city lots.

Westchester County's effective property tax rate is 1.6%21, and the median property tax bill is $10,001 a year22. A typical home in the county is valued around $879,00023. If the lot sits in a mapped flood hazard area, a local floodplain development permit applies to private building24. A driveway onto a state highway needs a NYSDOT permit25.

Watch-outs

  • Septic authority, septic permits and private well rules inside New Rochelle city limits are unconfirmed; ask the Westchester County Department of Health at (914) 995-7285 before relying on any system18.
  • Owner-builder rules, accessory dwelling units, short-term rentals and RV or tiny-home living inside the city are unconfirmed; call the Bureau of Buildings at (914) 654-20352.
  • The 2025 New York State building codes began applying to permit applications at the end of 2025, so older plans may need updating11.
  • Westchester County licenses home-improvement contractors, so check contractor licensing separately from your building permit26.

Sources

  1. Article II: Administrative Provisions - City of New Rochelle, NY (New Rochelle), quoted and re-checked
  2. City of New Rochelle Bureau of Buildings (newrochelleny.gov)
  3. City of New Rochelle Zoning (Department of Buildings) (newrochelleny.gov)
  4. Westchester County Department of Health, Realty Subdivision and Land Development Review (health.westchestercountyny.gov)
  5. Article I: General Provisions - City of New Rochelle, NY (New Rochelle), quoted and re-checked
  6. Article II: Administrative Provisions - City of New Rochelle, NY (New Rochelle), quoted and re-checked
  7. Article II: Administrative Provisions - City of New Rochelle, NY (New Rochelle), quoted and re-checked
  8. Article II: Administrative Provisions - City of New Rochelle, NY (New Rochelle), quoted and re-checked
  9. Chapter 331: Zoning - City of New Rochelle, NY (New Rochelle), quoted and re-checked
  10. City of New Rochelle Building Permits page (newrochelleny.gov)
  11. Part 1203 Uniform Code and the Energy Code: Minimum Standards for Administration and Enforcement (New York statewide rule), quoted and re-checked
  12. Article II: Administrative Provisions - City of New Rochelle, NY (New Rochelle), quoted and re-checked
  13. Legal Memorandum LG03: NYS Uniform Fire Prevention and Building Code: What Elected Officials Need to Know, quoted and re-checked
  14. documents.dps.ny.gov (New York statewide rule), quoted and re-checked
  15. Chapter 331: Zoning - City of New Rochelle, NY (New Rochelle), quoted and re-checked
  16. Chapter 331: Zoning - City of New Rochelle, NY (New Rochelle), quoted and re-checked
  17. Chapter 331: Zoning - City of New Rochelle, NY (New Rochelle), quoted and re-checked
  18. Westchester County Department of Health, Septic System Management (health.westchestercountyny.gov)
  19. State Pollutant Discharge Elimination System (SPDES) Permit Program (New York statewide rule), quoted and re-checked
  20. Campground Rules and Regulations (New York statewide rule), quoted and re-checked
  21. Effective property tax rate: Bolthole Index county data
  22. Median property tax bill: Bolthole Index county data
  23. Typical home value (Zillow): Bolthole Index county data
  24. Floodplain Management - NYSDEC (New York statewide rule), quoted and re-checked
  25. Residential Driveway Permits (New York statewide rule), quoted and re-checked
  26. Consumer Alert: NYS Department of State’s Division of Consumer Protection Provides New Yorkers with Tips for Avoiding Home Improvement Scams (New York statewide rule), quoted and re-checked

Written October 24, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Answers from the rulebook for New Rochelle

New Rochelle’s own rules

  • Building permitRequired

    Erection, construction, enlargement, alteration, removal, improvement, demolition, excavation, conversion, occupancy/use change, State-Code work, and cranes on private property inside New Rochelle city limits.

    • Exemptions provided by the code apply.
    “No person, firm or corporation shall commence the erection, construction, enlargement, alteration, removal, improvement, demolition, excavation or conversion of any building or structure or part thereof, or change the occupancy or use of any building or structure or part thereof, or perform any work which must conform to the State Code, or cause the same to be done, or shall erect any crane on private property, without first filing with the Building Official an application and obtaining a permit therefor, except as otherwise exempted under the provisions of this code.”
  • Building code adoptedAdopted (with conditions)

    Existing and proposed buildings and structures inside New Rochelle city limits.

    • The chapter is subject to matters otherwise provided for or exempted in City ordinances or New York statutes.
    “This chapter shall be known as the "New Rochelle Building Code." It shall incorporate the standards found in the Building Code of New York State, Residential Code of New York State, and Energy Conservation Construction Code of New York State, which shall be referred to in this chapter as the "State Code."”
  • InspectionsRequired

    Work performed under a City building permit inside New Rochelle city limits.

    • Owner, applicant, or agent must notify the Building Official and schedule inspection; final inspection and approval are required before a certificate of occupancy or compliance.
    • Other governmental-agency inspections and approvals required by permitted work must be obtained and submitted.
    “Work for which a building permit has been issued under this code shall be inspected for approval by the Building Official or his representative prior to enclosing or covering any portion thereof and upon completion of each stage of construction.”
  • Certificate of occupancyRequired

    New buildings inside New Rochelle city limits.

    • Temporary structures do not require a certificate of occupancy.
    • Temporary certificates may be issued when occupancy is safe before full completion, for no more than 90 days per period and no more than 12 months of renewals total.
    “New buildings. No building hereafter erected shall be used or occupied, in whole or in part, until the certificate of occupancy shall have been issued by the Building Official.”
  • Camping on your landLimited

    A tent on private property inside New Rochelle city limits for more than three days.

    • A building permit may be issued only upon application and compliance with applicable State Code, Zoning Code, NFPA, and other applicable law, ordinance, or regulation.
    • The applicant must execute a removal agreement and may be required to post a removal bond.

    private-property tent duration triggering temporary-structure permit treatment: > 3 days

    “Permits for temporary structures. A building permit for a temporary structure (a tent for commercial or public use, a tent on private property for more than three days, a trailer not for a construction project, a structure for remediation of contamination as required by Department of Environmental Conservation (DEC) and similar temporary facilities) may be issued by the Building Official upon application and compliance with all applicable provisions of the State Code, Zoning Code, N.F.P.A. and all other applicable laws, ordinances or regulations.”
  • Permit processPublished (with conditions)

    Building-permit applications inside New Rochelle city limits.

    • Application requires the prescribed form, signatures and acknowledgments, and required fee.
    • Owner/lessee, their agent, or the responsible architect/engineer may apply; other applicants need the owner's verified affidavit.
    “The application for a permit shall be submitted in such form as the Building Official may provide, with all the appropriate information entered and all appropriate sections duly signed and acknowledged before a notary public or commissioner of deeds, and shall be accompanied by the required fee.”

Rules another office applies inside New Rochelle

New Rochelle does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Minimum lot sizeDistrict specific (with conditions)

    Residence districts inside New Rochelle city limits.

    • Specific lot-area limits depend on the residence district shown in the adopted schedule.
    “District/Use [...] Lot Area (square feet) [...] R1-20 One-Family Residence [...] 20,000 [...] R1-15 One-Family Residence [...] 15,000”
  • SetbacksDistrict specific (with conditions)

    Residence districts inside New Rochelle city limits.

    • Specific dimensional controls depend on the residence district shown in the adopted schedule.
    “District/Use [...] Yards [...] Front (feet) Side (feet) Rear (feet) [...] R1-20 One-Family Residence [...] R1-15 One-Family Residence”
  • Lot coverageDistrict specific (with conditions)

    Residence districts inside New Rochelle city limits.

    • Specific dimensional controls depend on the residence district shown in the adopted schedule.
    “District/Use [...] Coverage [...] R1-20 One-Family Residence [...] 20% 35% [...] R1-15 One-Family Residence [...] 25% 45%”
  • Building heightDistrict specific (with conditions)

    Residence districts inside New Rochelle city limits.

    • Specific dimensional controls depend on the residence district shown in the adopted schedule.
    “District/Use [...] Building Height [...] Stories Feet [...] R1-20 One-Family Residence 0.25 3 30 [...] R1-15 One-Family Residence 0.3 3 30”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask New Rochelle or Westchester County directly.

  • Owner-builder exemption — Owner-builder construction inside New Rochelle city limits.
  • Minimum dwelling size — Residential districts inside New Rochelle city limits.
  • Living in an RV — Residential occupancy of recreational vehicles on private land inside New Rochelle city limits.
  • Tiny homes — Tiny-home occupancy inside New Rochelle city limits.
  • Manufactured homes — Manufactured-home occupancy inside New Rochelle city limits.
10 more unanswered
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • Short-term rentals

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that New Rochelle publishes no rule on the point, not that none exists. Westchester County’s page lists the county offices to call.

← All of Westchester County: county rules, score and offices