Greenwich Township Property Guide
Real Estate & Living
Greenwich Township · Stewartsville · Upper Stewartsville
Explore a Warren County housing market that combines the historic village of Stewartsville, established suburban neighborhoods, newer planned housing, rural acreage and preserved farmland—all with quick access to Interstate 78, Route 57, Route 173 and the Phillipsburg–Easton region.
Village · Suburban · Rural
Stewartsville homes
Residential neighborhoods
Farmland & acreage
I-78 regional access
Residential neighborhoods
Farmland & acreage
I-78 regional access
Property-listing policy: NJTGO does not present demonstration homes, estimated asking prices or fictional properties as current inventory. Availability and pricing change constantly, so use current licensed real-estate and MLS resources when searching for a specific home, lot, farm, rental or commercial property.
2026 property-tax update: Greenwich Township announced on August 4, 2026 that the Township had received its 2026 tax rate of 4.237. Tax bills, assessments and rates change, so use the Township's current tax records for any property-specific calculation.
Greenwich Township Housing Character
Greenwich offers more housing variety than many rural Warren County townships, with an old village core, developed residential neighborhoods and substantial preserved or environmentally constrained land.
Stewartsville, Upper Stewartsville & Residential Areas
Older housing, churches, cemetery, municipal services and historic resources sit near the traditional village streets and the Route 173 / Main Street corridor.
Upper Stewartsville represents another recognized residential portion of Greenwich Township and shares the 08886 postal identity.
The Wyndham Farm Boulevard area is one of the township's recognizable suburban residential sections and is also home to Greenwich Elementary School.
Greenwich's official housing documents identify Greenwich Chase as an established development within the township's affordable-housing framework.
Properties along and near County Route 519 benefit from convenient access to local shopping, Port Warren Park and the Phillipsburg area.
Buyers looking at larger parcels should pay special attention to zoning, Highlands status, soils, groundwater, slopes and preservation restrictions.
Postal address vs. municipality: Stewartsville is the postal identity for much of Greenwich Township. Always confirm the actual municipality, block and lot when evaluating taxes, zoning, schools, utilities or development rights.
Zoning, Land Use & Development
Greenwich provides unusually useful online land-use resources, including a zoning map, tax map, site-plan and subdivision applications, variance checklists and current Land Use Board records.
908-859-0909 ext. 12
Tuesday, 4:00–7:00 p.m.
Contact the zoning office before assuming a use, addition, accessory structure, subdivision or business activity is permitted.
908-859-0909 ext. 16
The Board handles current planning and zoning applications and publishes 2026 agendas and minutes.
Buyers considering division, redevelopment or nonresidential use should review current requirements before purchasing.
Separate smoke-detector and carbon-monoxide certification requirements may still apply.
Public Water, Sewer, Wells & Septic
Utility service is not uniform across Greenwich Township. Some areas have public sewer and water infrastructure, while other properties continue to rely on private wells, septic systems or a mix of service types.
Confirm whether a particular parcel is inside the sewer service area and whether connection or capacity fees apply.
Service availability can be parcel-specific, so verify directly with the appropriate utility and Township.
The County reviews new installations, inspects septic systems and maintains a public searchable records database.
The County reviews new wells and water analyses and maintains public well records searchable by municipality, address or block and lot.
Never assume utility type from the neighborhood alone. Existing development applications in Greenwich show that wells, septic systems, water-main extensions and sewer connections can exist within the same broader corridor.
Land, Limestone Geology & Environmental Review
Limestone geology deserves special attention: Greenwich's official land-use planning documents identify carbonate-rock / limestone geology as both a valuable groundwater resource and an area where sinkhole development can occur because water moves rapidly through the rock.
Preservation is a major land-use factor: NJ Highlands Council data reported approximately 2,029 preserved acres, or 30% of Greenwich Township, in 2024. Large parcels can also contain environmentally constrained or conservation areas.
- Confirm zoning district and permitted use.
- Review survey, deed and easements.
- Check preserved farmland or open-space restrictions.
- Review Highlands Planning / Preservation Area status.
- Evaluate slopes, drainage and access.
- Investigate limestone geology and sinkhole history where relevant.
- Check current FEMA flood mapping.
- Review NJDEP wetlands and flood-hazard information.
- Verify stream buffers and groundwater constraints.
- Review well and septic records where applicable.
- Use engineers or environmental professionals for parcel-specific concerns.
Property Taxes & Public Records
The Township announced this rate on August 4, 2026. Use the current tax bill and assessment for property-specific calculations.
908-859-0909 ext. 29
Use the Township for current tax balances, billing and sewer-account questions.
908-859-0909 ext. 13
908-319-5864
Contact the assessor for assessment, exemption and tax-list questions.
The Township provides its current tax map through the Forms section.
Searchable online by municipality, address or block and lot.
County public-record guidance directs land-record searches to the County Clerk.
Affordable Housing & Current Residential Planning
Greenwich Township maintains a dedicated online library for affordable-housing documents. In 2026 the Township posted new inclusionary residential housing ordinances, an inclusionary overlay district and updated implementation documents connected with New Jersey's current affordable-housing planning cycle.
Township housing plans identify Greenwich Chase within Greenwich's established affordable-housing compliance framework.
Buyers, developers and adjoining property owners should review the latest Township zoning map and 2026 affordable-housing ordinances rather than relying on older zoning assumptions.
Finding a Licensed Real Estate Professional
Brokerage affiliations and office locations change frequently. Verify any agent or brokerage through New Jersey's official licensing system before hiring them.
Greenwich Township Buyer & Seller Checklist
- Confirm municipality, block and lot.
- Check current zoning and permitted use.
- Verify public water, sewer, well or septic service.
- Review tax bill and assessment.
- Check flood, wetlands and Highlands mapping.
- Review survey, easements and deed restrictions.
- Investigate limestone / sinkhole concerns when relevant.
- Confirm permits for additions, decks, pools and finished spaces.
- Gather permits and improvement records.
- Identify current utility service and account status.
- Locate well and septic documentation when applicable.
- Resolve known zoning or municipal record questions early.
- Confirm smoke and carbon-monoxide certification requirements.
- Use licensed professionals for pricing and transaction advice.
NJTGO is a local information guide, not a brokerage, MLS, lender, appraisal company, attorney, surveyor, engineer or inspection service. Verify all property-specific information with the appropriate government office and qualified professional.
More Greenwich Township Guides
Greenwich Township Main GuideHistory, Stewartsville, Morris Canal, parks, schools, government and community.
Business & ShoppingLocal services, shopping, contractors, healthcare and professional businesses.
Food & DrinkRestaurants, bakeries, delis, pizza, coffee and local dining.
Visiting & LodgingPort Warren Park, Morris Canal heritage, lodging and trip planning.
ClassifiedsCommunity notices, items for sale and marketplace categories.
JobsLocal employers, schools and regional employment resources.
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