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Worcester, Massachusetts: what can you build or do?

Plain-English answers to common homeowner questions, taken from Worcester's published bylaws, with every rule linked to the section it comes from.

Last reviewed 2026-10-15

• Accessory Dwelling Units (ADUs)
  Yes. Since January 13, 2026, Worcester allows one accessory dwelling unit (ADU) per lot by right in all residential districts, attached, detached or inside the house, up to 900 sq ft. You need a building permit and a certificate of occupancy; the owner doesn't have to live on site, no extra parking is required, and the ADU can't be used as a short-term rental.Allowed with a permit
• Backyard Chickens
  No, not in residential zones. Worcester's Zoning Ordinance excludes animals or birds other than customary household pets from all residential districts, which rules out backyard hens and roosters on typical home lots. The only exception is racing or carrier pigeons in RS-7 districts.Not allowed
• Short-Term Rentals (Airbnb / VRBO)
  Worcester has no short-term rental ordinance or license, and its zoning doesn't list short-term rentals as a use; because uses not listed are not allowed, our reading (an inference, not an explicit rule) is that Airbnb-style rentals aren't clearly permitted. The closest listed use is an owner-occupied bed and breakfast (up to 6 guestrooms, stays under 8 days), which needs a Zoning Board of Appeals special permit in residential districts; ADUs may never be short-term rentals.Restricted
• Fences
  Worcester's zoning sets no fence-height limit for homes and has no corner sight-line rule for fences, and residential fences are exempt from site plan review; this page's "allowed" rests on that silence. A fence or wall over 6 feet counts as a "structure," and our interpretation (the ordinance doesn't say so outright) is that a taller fence would then have to meet accessory-structure rules: 5 feet from lot lines, 15 feet max, not in the front yard. Before building a fence along a street, confirm the street boundary with the Commissioner of Public Works and Parks.Allowed
• Sheds & Accessory Buildings
  Yes. In Worcester's residential districts a detached shed must be at least 5 feet from every lot line, no more than 15 feet tall, and kept out of the required front yard and the exterior side yard of a corner lot. The ordinance also caps the total area of accessory uses at 10% of the house's floor area or 10% of the lot's unbuilt area; it's unclear whether both limits apply, so confirm with Building & Zoning before building a large shed. The state building code exempts one-story sheds of 200 sq ft or less from a building permit.Allowed
• Burn Permits & Backyard Fires
  No. The City of Worcester says open burning is banned year-round, because Worcester is one of 22 Massachusetts cities and towns where state air rules (310 CMR 7.07) prohibit it completely, so you can't get a brush-burning permit. The city's ordinances have no separate fire pit rule, but they ban grills and other open-flame cookers on the porches and balconies of multi-family buildings.Not allowed
• Home-Based Businesses
  Yes. Worcester allows home occupations by right in residential districts if you live in the home, have no more than one non-resident employee, and use no more than 25% of the house (or 50% of an existing accessory building). There can be no outside sign of the business except one permitted sign, no visible storage, and no sales of goods from the premises.Allowed
• Swimming Pools
  Yes. In Worcester's residential districts a private pool can go in the rear yard if it's at least 6 feet from the property lines and enclosed by its own 4-foot fence. Like other accessory structures, it can't be in the front yard or over 15 feet tall, and it needs a building permit under the state building code.Allowed with a permit
• Building Near the Water (Wetlands Rules)
  Building, grading or clearing within 100 feet of any wetland, bank, lake, pond or stream in Worcester needs a permit from the Conservation Commission under the city's Wetlands Protection Ordinance. The city's regulations generally bar any new structure within 30 feet of a resource area and any grading or clearing within 15 feet, unless the Commission grants a specific allowance or waiver.Allowed with board review
• Docks, Piers & Floats
  A dock, pier or float on a Worcester lake or pond needs a Conservation Commission permit under the city's Wetlands Protection Ordinance, because it involves building on land under water and placing objects in the water. Worcester has no separate dock ordinance or size limit; the local filing fee for dock and pier work is $2 per linear foot ($50 minimum, $1,000 maximum). State permits may also apply.Allowed with board review