Zoning, building permits and septic rules in Shrewsbury, Massachusetts

At a glance

Building permit

Required; applied for online through the town¹⁵

Building code

10th edition Massachusetts State Building Code, enforced by the town Building Inspector⁶

Zoning

Yes, a town zoning bylaw covers all land in Shrewsbury²

Septic

Town health department issues Title 5 permits; construction permit fee $675³⁷

RV or trailer living

Limited to 30 days per year⁴

Minimum lot, Residence A

20,000 sq ft and 125 ft of frontage for a one-family lot⁸

Who to call

Contact details are copied from each office’s official page and were checked against it on October 23, 2026.

Does Shrewsbury, MA have zoning, and what does it mean for RVs, lots and setbacks?

Yes. Shrewsbury has its own zoning bylaw, and it applies to all land in the town². Rules differ by district, so look up the district for any parcel before you plan anything.

In the Residence A district, a one-family lot needs at least 20,000 square feet and 125 feet of frontage⁸. A detached storage shed or pool house of 200 square feet or less may go in any yard except the front, 10 feet from property lines⁹. Building height limits are set district by district in the bylaw's Table II¹⁰.

For trailers and mobile homes, the bylaw prohibits occupying one for sleeping or cooking for more than 30 days in any year⁴. The Building Inspector may grant a temporary permit only for business use tied to a bona fide construction operation⁴. We could not confirm a Shrewsbury rule on tiny homes, so ask the Building Inspector before buying a lot for one.

Do you need a building permit in Shrewsbury, and who issues it?

Yes. Construction in Shrewsbury needs a building permit, and the town applies it through its online permitting system¹. You register or log in, complete the application, upload the required documents and pay by cash, check or online⁵. Work may begin only once the permit is issued, and inspections are logged in the same system¹¹.

Shrewsbury's Building Inspector enforces the Massachusetts State Building Code, and the 10th edition is in effect⁶. New, altered or relocated buildings also need an occupancy permit from the building inspector before use, and none is granted unless the use complies with the zoning bylaw¹².

Building your own home exempts you from home-improvement contractor registration under state law, but that exemption does not waive building permits or inspections¹³. Contact the Shrewsbury Building Inspector at (508) 841-8512¹⁴.

How do septic permits work in Shrewsbury?

Shrewsbury's town health department handles on-site septic systems inside the town under Title 5, using DEP forms³. A new system needs a perc and soil test, soil log results and stamped plans⁷. The disposal system construction permit costs $675, and the perc and soil test costs $400 per lot⁷. Repairs or upgrades cost $225, abandonment costs $75, and septic installers need a $325 town permit¹⁵.

Approved plans expire 3 years after approval, and a one-year extension may be requested before they lapse⁷. The inspections and certificate of compliance are included in the construction permit fee¹⁶.

Worcester County's soils make planning important: only 1.4% of the county's soils rate as not limited for a conventional drain field, so expect a site evaluation and possibly an engineered system¹⁷. Call the health department at 508-841-8384¹⁸.

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

Generally not for long. Shrewsbury's zoning bylaw prohibits occupying a trailer or mobile home for sleeping or cooking for more than 30 days in any year, and trailer coach parks are also prohibited⁴. The bylaw's definition of trailer or mobile home includes dwelling units built on a chassis¹⁹.

Massachusetts law has one narrow exception: an owner whose home was destroyed by fire or another natural holocaust may live in a manufactured home on the site for up to 12 months while rebuilding²⁰.

We could not confirm a Shrewsbury provision on tiny homes. State law on tiny houses applies only in municipalities designated as seasonal communities²¹, so ask the Building Inspector how a tiny house would be classified. A single accessory dwelling unit in a single-family zoning district is protected by state law, with a 900 square foot cap²².

Building a home in Shrewsbury: the steps, in order

1. Find the zoning district for the parcel and check the lot size and frontage against the bylaw's Table II⁸.
2. If you are dividing land, submit a plan to the planning board first, because Massachusetts requires approval before subdivision²³.
3. For a septic system, book the perc and soil test, then submit stamped plans to the health department for the construction permit⁷.
4. Apply for the building permit in the online permitting system and upload the required documents⁵.
5. Start work only after the permit is issued, and post the permit card on the site¹.
6. Have inspections logged as work proceeds¹¹.
7. Obtain the occupancy permit before anyone moves in¹².

What stays with Worcester County, and what to check before you buy in Shrewsbury

Inside Shrewsbury, the town issues building permits and sets zoning, and the town health department issues septic permits, as described above¹²³. For land outside Shrewsbury, see the Worcester County page.

Before you buy, confirm the lot's zoning district and whether it sits in land subject to seasonal flooding, where development is limited²⁴. Public water and sewer connections, private wells and driveway permits were not confirmed for Shrewsbury; Massachusetts allows towns to require a local site permit for private wells²⁵, so ask the health department.

County-level figures: Worcester County's effective property tax rate is 1.3%²⁶, and the median property tax bill is $5,207 per year²⁷.

Watch-outs

• The zoning bylaw copy we reviewed is amended through May 21, 2022, so later changes, including MBTA Communities zoning, may not be reflected; confirm with the Building Inspector².
• A trailer or mobile home may not be occupied for sleeping or cooking for more than 30 days in any year, so living in an RV while you build is not allowed beyond that limit⁴.
• Private wells, driveway permits, short-term rentals and public water or sewer connections were not confirmed for Shrewsbury; ask the Building Inspector or the health department before relying on them¹⁵.

Sources

1. Building Permit - Instructions on How to Apply (Town of Shrewsbury), quoted and re-checked
2. Zoning Bylaw, Town of Shrewsbury (amendments through May 21, 2022) (Town of Shrewsbury), quoted and re-checked
3. Title V - Shrewsbury Health Department (Town of Shrewsbury), quoted and re-checked
4. Zoning Bylaw, Town of Shrewsbury (amendments through May 21, 2022) (Town of Shrewsbury), quoted and re-checked
5. Building Permit - Instructions on How to Apply (Town of Shrewsbury), quoted and re-checked
6. Building Inspector (Town of Shrewsbury), quoted and re-checked
7. Title V - Shrewsbury Health Department (Town of Shrewsbury), quoted and re-checked
8. Zoning Bylaw Table II - Minimum Zoning Requirements (Town of Shrewsbury), quoted and re-checked
9. Zoning Bylaw Table II - Minimum Zoning Requirements (Town of Shrewsbury), quoted and re-checked
10. Zoning Bylaw, Town of Shrewsbury (amendments through May 21, 2022) (Town of Shrewsbury), quoted and re-checked
11. Building Permit - Instructions on How to Apply (Town of Shrewsbury), quoted and re-checked
12. Zoning Bylaw, Town of Shrewsbury (amendments through May 21, 2022) (Town of Shrewsbury), quoted and re-checked
13. Massachusetts General Laws, Chapter 142A, Section 14 (Massachusetts statewide rule), quoted and re-checked
14. Shrewsbury Building Inspector (shrewsburyma.gov)
15. Title V - Shrewsbury Health Department (Town of Shrewsbury), quoted and re-checked
16. Title V - Shrewsbury Health Department (Town of Shrewsbury), quoted and re-checked
17. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
18. Central MA Regional Health Department (Shrewsbury Title 5 agent) (shrewsburyma.gov)
19. Zoning Bylaw, Town of Shrewsbury (amendments through May 21, 2022) (Town of Shrewsbury), quoted and re-checked
20. Massachusetts General Laws Chapter 40A, Section 3 (Massachusetts statewide rule), quoted and re-checked
21. Massachusetts General Laws Chapter 23B, Section 32 (Massachusetts statewide rule), quoted and re-checked
22. Massachusetts General Laws Chapter 40A, Section 3 (Massachusetts statewide rule), quoted and re-checked
23. Massachusetts General Laws c. 41, § 81O (Massachusetts statewide rule), quoted and re-checked
24. Zoning Bylaw, Town of Shrewsbury (amendments through May 21, 2022) (Town of Shrewsbury), quoted and re-checked
25. Massachusetts General Laws Chapter 21G, Section 20 (Massachusetts statewide rule), quoted and re-checked
26. Effective property tax rate: Bolthole Index county data
27. Median property tax bill: Bolthole Index county data

Written October 23, 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.