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An accessory dwelling unit (ADU), a granny flat, in-law suite, or backyard home, can add rental income or family space. Whether Cranford allows one, and how big, comes down to the town’s zoning and your specific lot. Here’s what we know, and how to check yours.
We've mapped Cranford's residential zoning. An ADU on your lot follows the town's accessory-structure standards: check your specific address for the exact size, height, and setback it allows.
Source: https://ecode360.com/13224829?view=browse §Schedule 1…
Sources: Township of Cranford Code Chapter 255 (Land Development), Article V (Zoning), Section 255-36 (Use regulations) and Section 255-35B(6). Read 2026-10-03 from the Zoneomics mirror of Article V (zoneomics.com/code/cranford-NJ/chapter_5) and search-index snippets of ecode360.com/30628086 and ecode360.com/30628034 (ecode360 returns 403 to a direct fetch). Says: R-1 through R-4 permit only detached one-family dwellings, R-5 adds detached two-family dwellings, no more than one principal structure per lot in R-1 through R-5, and no use is permitted that is not listed as permitted, accessory or conditional; no accessory apartment or accessory dwelling use is listed in any zone.
See exactly what your lot allowsNew Jersey has no single statewide ADU law. Each of the state's 564 municipalities, Cranford (Union County, NJ) included, sets its own zoning for accessory dwelling units (granny flats, in-law suites, backyard homes). Whether you can build one in Cranford, how big, and how tall depends on the town's ordinance and your specific lot. We've mapped Cranford's residential zoning: buildings are capped around 32 ft / 2.5 stories, with a minimum lot area near 12,000 sf. Your ADU follows the town's accessory-structure standards on top of that.
Our proven designs, each fitted to your lot, then made yours (trim, color, layout). Photorealistic renderings of the real thing, not stock photos.
Explore all modelsCranford sets its own ADU rules, and we've mapped its residential zoning. Whether your specific lot qualifies, and how big an ADU it allows, comes down to your parcel's size, setbacks, and the accessory-structure standards. Check your Cranford address to see for sure, free.
A detached ADU in Cranford typically runs $150,000 to $300,000+ all-in depending on size, site, and finishes. The build is financed and the rent helps carry the loan. You own the home.
Some NJ towns require owner-occupancy; others (like Jersey City) don't. We check Cranford's specific ordinance for you when you run your address.
Enter your address and we read Cranford’s zoning against your parcel and tell you if an ADU fits, how big, and what it could earn. Free.
Check if your Cranford lot qualifies, free
