Boston Shed Permit Site Plan: What Homeowners Should Show Before Approval

Boston residential shed drawings

Planning to install or replace a backyard shed in Boston, Massachusetts? Your permit or zoning application may need a clear site plan showing the property, existing buildings, proposed shed, dimensions, property-line distances and other relevant site conditions.

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Quick answer

A one-story detached tool or storage shed measuring no more than 200 square feet may qualify for the Massachusetts building-permit exemption. That does not automatically exempt the shed from Boston zoning, historic-district review, electrical permits or other applicable approvals. Boston Inspectional Services determines the required permit path and documents for the particular property and project.

Boston shed permit site plan showing proposed shed location property lines dimensions existing house garage driveway deck utilities easements and trees
Example of a residential shed site plan showing the property, existing improvements, proposed shed and measurable site relationships. Requirements vary by Boston property and zoning district.

A shed site plan—also called a plot plan—is an overhead drawing showing exactly where the proposed shed will sit within the property.

It can help Boston reviewers understand:

  • The property on which the shed will be installed
  • The size and shape of the lot
  • The location of the existing house and other structures
  • The proposed shed’s size, height and use
  • Distances from the shed to property boundaries
  • Separation from the house, garage and other buildings
  • Whether easements or utilities affect the proposed location
  • How the shed relates to access, paving and yard conditions
  • Whether the proposal appears to require zoning relief

A site plan does not guarantee permit or zoning approval. It provides measurable information that Inspectional Services can review with the application and any required construction documents.

Need a Site Plan for a Boston Shed?

Send us your Boston property address, shed dimensions, intended location, photographs and any survey, mortgage plot plan or previous permit drawing you have. We can organize the supplied information into a clear residential site drawing.

Order Your Site Plan View the Site Plan Checklist

Does a Shed Need a Building Permit in Boston?

Not every small storage shed requires a Massachusetts building permit.

The current Massachusetts Residential Code lists an exemption for:

  • A one-story detached accessory structure
  • Used as a tool shed, storage shed, playhouse or similar use
  • With a floor area no greater than 200 square feet

The exemption is limited. It does not mean that the shed is exempt from every rule or approval.

Other review may still apply because of:

  • Boston zoning requirements
  • Historic-district or landmark status
  • Electrical, plumbing or mechanical work
  • Wetland, flood or environmental conditions
  • Utility or access easements
  • Work in or near public property
  • A different proposed use

A larger shed, multi-story shed or structure that does not fit the limited storage-shed exemption generally requires building-permit review.

Boston’s current permitting guidance states that detached structures involve both zoning and structural considerations and require site-plan review. Inspectional Services confirms the project-specific documents after the application is filed.

Official sources: Massachusetts Residential Code — Permit Exemptions and City of Boston — Build or Make an Addition .

Do not rely on size alone

A shed measuring 200 square feet or less may be exempt from the state building permit, but its placement, height and use still need to comply with the Boston Zoning Code and any property-specific restrictions.

Storage Shed vs Studio, Office or Habitable Space

The state exemption specifically applies to tool sheds, storage sheds, playhouses and similar accessory uses.

A structure proposed for another use may require a different review.

Examples include a shed used as a:

  • Home office
  • Workshop with substantial equipment
  • Art or music studio
  • Gym
  • Sleeping room
  • Guest room
  • Dwelling unit
  • Commercial space

The addition of insulation, heating, plumbing or permanent electrical systems can also introduce separate code and permit requirements.

Describe the actual intended use accurately when contacting Inspectional Services or submitting the application.

Boston Zoning Rules for Sheds

Boston does not use one citywide accessory-building setback for every residential property.

Boston’s Zoning Code is organized through neighborhood districts and zoning articles. The controlling requirements can vary according to:

  • Neighborhood zoning article
  • Subdistrict
  • Property use
  • Lot size and width
  • Shed size and height
  • Side- or rear-yard location
  • Distance to other buildings
  • Lot occupancy or floor-area limitations
  • Historic or special-district regulations
  • Previous zoning relief or property conditions

Use Boston’s zoning viewer to identify the property’s zoning district. Then review the applicable use and dimensional tables.

Inspectional Services makes the final zoning determination for a permit application.

Official source: City of Boston — Check a Property’s Zoning Designation .

Read Setbacks and Zoning: How to Find the Rules for Your Property and Property Setbacks Explained for Homeowners .

When a Shed May Need Zoning Relief

A shed proposal can be cited for zoning violations even when the structure is small.

Possible issues include:

  • Insufficient side-yard distance
  • Insufficient rear-yard distance
  • Insufficient distance between buildings
  • Excessive accessory-building height
  • Excessive lot occupancy
  • A use that is not allowed as proposed
  • Conflict with another property-specific zoning condition

When the proposal does not comply with the applicable zoning, the applicant may need to revise the shed location or pursue relief through the Boston Zoning Board of Appeal.

Boston’s building-permit checklist calls for certified existing and proposed plot plans prepared to scale by a Massachusetts-registered land surveyor when zoning relief is required.

A standard drafted site plan does not replace that certified plot plan.

Official sources: Boston Building Permit Application Checklist and Boston Zoning Board of Appeal .

What a Boston Shed Site Plan Should Show

Complete property The full lot rather than only the immediate shed area.
Existing conditions The house, garage, decks, paving and other relevant structures.
Proposed shed The complete shed footprint, dimensions, height and intended use.
Property-line distances Measurable side- and rear-yard distances from the proposed shed.
Building separation Distance between the shed, house, garage and other structures.
Access Driveways, walkways, alleys, gates and delivery or construction access.
Restrictions Known easements, utilities, retaining walls and drainage features.
Scale and orientation North arrow, drawing scale, dimensions and clear labels.

Property address and parcel information

Include:

  • Complete Boston property address
  • Parcel identification information when available
  • Project title
  • Short description of the shed
  • Drawing or revision date

The identifying information should agree with the permit application and property documents.

Complete property boundaries

Show:

  • Front property line
  • Left-side property line
  • Right-side property line
  • Rear property line
  • Street-side line on a corner lot
  • Angled or irregular boundary segments
  • Available boundary dimensions
  • Adjoining street or public alley

Do not automatically treat a fence, hedge, retaining wall or edge of paving as the legal property boundary.

Existing house and structures

Show existing improvements that affect the shed location.

  • Main house
  • Existing additions
  • Attached or detached garage
  • Existing shed
  • Deck or porch
  • Patio
  • Driveway and parking
  • Walkways
  • Retaining walls
  • Fences and gates when relevant

Label these features as existing so that the proposed shed is easy to distinguish.

Proposed shed footprint

Show the shed as a clearly defined footprint.

Use:

  • A clear “PROPOSED SHED” label
  • A distinct hatch pattern
  • A heavier outline
  • A different line style
  • An existing-and-proposed legend

The drawing may also identify:

  • Storage use
  • Shed length and width
  • Proposed height
  • Roof overhangs
  • Door location
  • Foundation, slab or base type when relevant

Shed dimensions

Show the overall length and width.

The stated dimensions should agree with:

  • Permit application
  • Manufacturer specifications
  • Foundation or base plan
  • Exterior elevations
  • Structural drawings when required

For the state building-permit exemption, floor area is particularly important because the exemption is limited to qualifying one-story detached structures of no more than 200 square feet.

Shed height

Show the proposed height when it affects the applicable zoning or permit review.

The drawing or supporting elevation may need to identify:

  • Wall or eave height
  • Roof-peak height
  • Existing grade
  • Finished grade

Do not assume that a shed complying with the 200-square-foot floor-area threshold automatically complies with the applicable height limitation.

Distances to property lines

Show the shortest measurable distance from the proposed shed to:

  • Left-side property line
  • Right-side property line
  • Rear property line
  • Front or street-side property line when relevant

If the shed is close to a boundary, show the distance from the roof overhang when that projection affects the applicable measurement.

Do not copy a generic setback from another Boston neighborhood or property.

Distance between buildings

Show the separation between the proposed shed and:

  • Main house
  • Detached garage
  • Existing shed
  • Deck or porch
  • Another accessory building

Building separation can affect zoning and building-code review.

Driveways, alleys and yard access

Show relevant:

  • Driveway
  • Public alley
  • Walkway
  • Side-yard access
  • Fence gates
  • Exterior stairs

Access information can help explain how the shed fits into a compact or irregular Boston yard.

Utilities and mechanical equipment

Identify known utilities or equipment near the proposed shed.

These can include:

  • Gas meter
  • Electrical meter
  • Water service
  • Sewer service
  • Overhead utility lines
  • Underground utility lines when known
  • Air-conditioning equipment
  • Utility easements

A shed should not obstruct required access to utility equipment.

Electrical, plumbing, gas or mechanical installations require their own review and permits where applicable.

Easements and property restrictions

Show known:

  • Utility easements
  • Access easements
  • Shared-driveway easements
  • Drainage easements
  • Other recorded restrictions affecting the shed area

A shed can comply with its zoning setback and still conflict with a recorded easement.

Drainage, slopes and retaining walls

Additional site information may be useful when the proposed location includes:

  • Steep or uneven ground
  • A retaining wall
  • A low drainage area
  • A swale or drain
  • Significant grade changes
  • Runoff directed toward another property

A basic drafted site plan does not replace grading, drainage or structural engineering when technical design is required.

Trees and landscaping

Show large trees or substantial landscape features when they directly affect:

  • Shed placement
  • Excavation
  • Foundation installation
  • Construction access
  • Drainage

North arrow, scale and labels

Include:

  • North arrow
  • Written drawing scale
  • Graphic scale bar when useful
  • Clearly identified measurement units
  • Readable dimensions
  • Existing and proposed labels
  • A legend for line types and symbols

Site Plan vs Mortgage Plot Plan vs Certified Survey

Drafted shed site plan Organizes available property documents, photographs and project dimensions into a clear layout showing the proposed shed.
Mortgage plot plan or existing plan Can provide useful lot and building information but may not establish boundaries or show all current improvements.
Certified plot plan or survey Is prepared by a Massachusetts-registered land surveyor using professional records and measurements and may be required for zoning relief or boundary verification.

A standard drafted site plan does not independently establish or certify legal property boundaries.

A Massachusetts-registered land surveyor may be needed when:

  • No reliable property document is available
  • Property corners cannot be located
  • The proposed shed is close to a boundary
  • The lot has an irregular shape
  • Available documents conflict
  • A neighbor disputes the boundary
  • Inspectional Services requests certified information
  • The project requires zoning relief

Can an Old Plot Plan Be Used?

An existing survey, mortgage plot plan or prior permit drawing may be a useful starting point when it accurately represents the property.

Review it for:

  • Correct property address
  • Complete lot boundaries
  • Lot dimensions
  • Existing house footprint
  • Current garages and accessory structures
  • Recorded easements
  • Readable scale

An older document may be incomplete if the property has since gained:

  • An addition
  • A garage
  • A deck
  • A driveway
  • A prior shed
  • A retaining wall
  • Another exterior improvement

The proposed shed must be added clearly with dimensions and property-line distances.

Can an Online Map Be Used as the Site Plan?

An online parcel map or aerial image can help explain the intended shed location, but it should not automatically be treated as a surveyed property plan.

Online imagery can be:

  • Outdated
  • Distorted
  • Missing dimensions
  • Missing structures
  • Misaligned with legal boundaries
  • Insufficient for measuring setbacks

A permit-focused site plan should use the most reliable property documents available and clearly identify the source and proposed measurements.

Historic District and Landmark Review

A shed proposed on a designated landmark property or within a local historic district may require review by the Boston Landmarks Commission or the applicable district commission.

Historic review can consider:

  • Shed location
  • Visibility from a public way
  • Size and height
  • Exterior materials
  • Roof form
  • Color and finish
  • Relationship to the historic building and landscape

Boston’s permit portal identifies Landmarks Commission approval as a possible external review for projects in historic districts.

Confirm the property’s historic status before purchasing or installing the shed.

Official source: City of Boston — Short-Form Permits and External Reviews .

Shed Site Plan vs Construction Drawings

The site plan explains where the shed will be located.

Construction drawings explain how the shed will be built.

Depending on the shed, the permit package may also require:

  • Manufacturer specifications
  • Floor plan
  • Exterior elevations
  • Foundation or slab details
  • Framing details
  • Roof information
  • Anchoring details
  • Structural calculations
  • Electrical drawings

A site plan does not replace architectural, structural or engineering documents when those are required.

Current Boston Permit Process

Boston uses the Inspectional Services online portal for many building-permit applications.

1 Research the property Check the zoning district, permit history, property documents and historic status.
2 Confirm the permit path Ask Inspectional Services whether the shed is exempt, requires a building permit or needs another approval.
3 Prepare the site information Gather the property plan, shed dimensions, proposed location, photographs and manufacturer documents.
4 Prepare the drawings Complete the site plan and any required construction or elevation drawings.
5 Apply through the portal Create an account and submit the applicable Inspectional Services application.
6 Complete agency reviews Planning and Zoning, Landmarks or another department may review the application when applicable.
7 Address requested information Provide revised drawings or additional documents requested during review.
8 Obtain approval before work Do not begin construction until all required permits and approvals have been issued.

The appropriate permit type depends on the structure, scope, use and zoning status. Inspectional Services makes the final determination.

Official sources: Boston Permitting and Inspectional Services Online Portal .

What to Send With Your Boston Shed Site Plan Order

  • Complete Boston property address
  • Proposed shed length and width
  • Proposed shed height
  • Intended shed use
  • Manufacturer specifications when available
  • Preferred location within the yard
  • Measurements to side and rear property lines
  • Measurements to the house and other buildings
  • Existing survey or certified plot plan
  • Mortgage plot plan
  • Previous permit site plan
  • Deed or property documents when useful
  • A hand sketch or marked aerial image
  • Photographs of the complete yard
  • Photographs of the proposed shed area
  • Driveway, alley and gate information
  • Known utility and easement information
  • Slope or retaining-wall information
  • Historic-district information when applicable
  • Permit or zoning comments already received

How Our Boston Shed Site Plan Service Works

  1. Place your order. Select the site-plan option matching the requested level of detail.
  2. Provide the property address. Confirm that the City of Boston is the reviewing authority.
  3. Upload the property documents. Send any survey, plot plan, prior drawing or zoning comment.
  4. Describe the shed. Provide its dimensions, height, intended use and manufacturer information.
  5. Mark the intended location. Send a sketch, marked property plan or photographs.
  6. Review the completed draft. Check the shed location, dimensions, labels and property-line distances.
  7. Confirm the complete application. Obtain any separate certified plot plan, construction drawings or professional documents required by Boston.

The usefulness and accuracy of the completed drawing depend on the property documents, measurements, photographs and project information supplied.

USA Site Plans provides drafting services. Standard drawings are not signed or sealed by a Massachusetts-registered land surveyor, architect or engineer.

Common Boston Shed Site Plan Problems

  • The state building-permit exemption is treated as a zoning exemption
  • The property’s zoning district is not checked
  • A generic Boston setback is assumed
  • Only part of the lot is shown
  • Property boundaries are estimated from a fence
  • Lot dimensions are missing
  • The existing house or garage is incomplete
  • Existing sheds, decks or structures are omitted
  • The proposed shed is not clearly labeled
  • Shed length and width are missing
  • Shed height is omitted
  • Property-line distances are unclear
  • Distance to the house or garage is missing
  • Roof overhangs are ignored near a boundary
  • Easements or utilities are overlooked
  • Historic-district review is not considered
  • The proposed use is described only as storage when another use is intended
  • The site plan conflicts with manufacturer or construction drawings
  • A drafted site plan is submitted where a certified plot plan is required

A complete drawing cannot eliminate every review comment, but it can help reviewers understand the property, shed and proposed placement.

Read Why Site Plans Get Rejected for Permits and What Permit Reviewers Check First .

Boston Shed Site Plan Checklist

  • City of Boston jurisdiction confirmed
  • Current zoning district identified
  • Building-permit exemption reviewed
  • Actual shed use confirmed
  • Correct property address
  • Complete legal lot shown
  • Available property-line dimensions included
  • Existing house shown
  • Garage and accessory structures shown
  • Decks, patios and paving shown
  • Driveway or alley shown when relevant
  • Proposed shed clearly labeled
  • Shed length and width included
  • Shed floor area confirmed
  • Shed height included when relevant
  • Roof overhangs shown when relevant
  • Left-side property-line distance shown
  • Right-side property-line distance shown
  • Rear property-line distance shown
  • Distance to the house shown
  • Distance to other structures shown
  • Known easements shown
  • Nearby utilities shown when known
  • Gates and yard access shown when relevant
  • Retaining walls and slopes shown when relevant
  • Historic status reviewed
  • North arrow included
  • Drawing scale identified
  • Existing and proposed work visually distinguished
  • Site plan agrees with manufacturer or construction drawings
  • Certified plot plan obtained when required
  • Separate electrical or professional plans obtained when required

Related Permit Guides

Frequently Asked Questions

Does a 200-square-foot shed need a Boston building permit?

A qualifying one-story detached tool or storage shed with a floor area no greater than 200 square feet may be exempt under the Massachusetts Residential Code. Boston zoning and other permit requirements can still apply.

Does a shed smaller than 200 square feet need a site plan?

It may. The building-permit exemption does not automatically remove zoning or site-plan review. Confirm the required documents with Boston Inspectional Services for the property and proposal.

What setback does Boston require for a shed?

Boston does not use one universal shed setback. The controlling distance depends on the property’s zoning district, neighborhood article, shed height, lot conditions and other applicable regulations.

How do I find my Boston zoning district?

Search the property address or parcel through Boston’s zoning viewer. Review the applicable neighborhood article and dimensional tables, and confirm the interpretation with Inspectional Services.

Can a shed be placed directly against a property line?

Do not assume so. The shed must comply with the applicable zoning, building-separation and property-specific requirements. Show the actual proposed distance on the site plan.

Does the distance to the house need to be shown?

It should be shown when relevant to zoning, fire separation or site review. Boston zoning provisions can regulate separation between accessory buildings and other structures.

Can an old mortgage plot plan be used?

It may provide useful base information if it accurately shows the lot and current structures. It does not necessarily establish legal boundaries, and Boston may require a certified plot plan or updated survey.

When is a certified plot plan required?

Inspectional Services can request certified information based on the application. Boston’s permit checklist specifically calls for certified existing and proposed plot plans prepared by a Massachusetts-registered land surveyor when zoning relief is required.

Does a shed in a historic district need additional approval?

It may. Landmarks Commission or district-commission review can apply to exterior work at designated properties and within local historic districts.

Can the shed be used as an office or sleeping room?

That changes the nature of the project. The limited state exemption applies to tool sheds, storage sheds, playhouses and similar uses. An office, studio, sleeping space or dwelling can require additional zoning, building, energy and utility review.

Does electrical service require another permit?

Electrical work is reviewed separately and must be completed under the applicable Massachusetts and Boston permit requirements.

Can a drafted site plan establish the property lines?

No. A drafted plan uses available property documents and supplied measurements but does not independently locate or certify legal boundaries.

Are USA Site Plans drawings signed or sealed?

No. USA Site Plans provides drafting services. Licensed surveying, architecture, engineering and professional seals must be obtained separately when required.

Will a Boston shed site plan guarantee approval?

No. Boston Inspectional Services, Planning and Zoning, the Zoning Board of Appeal and any other participating authority control the applicable reviews and decisions.

Order Your Boston Shed Site Plan

Send us your Boston property address, shed dimensions, intended location, photographs and available survey or plot plan. We will prepare a clear residential site drawing based on the information supplied.

Order Your Shed Site Plan View Pricing

Official Boston and Massachusetts Resources

  1. Massachusetts Residential Code — Permit Requirements and Exemptions
  2. Massachusetts State Building Code
  3. Build or Make an Addition
  4. Boston Permitting
  5. Boston Inspectional Services
  6. Inspectional Services Online Portal
  7. Check a Property’s Zoning Designation
  8. Building Permit Application Checklist
  9. Zoning Board of Appeal
  10. Short-Form Permits and External Reviews
  11. Boston Permit Finder

Disclaimer: This article provides general educational information and is not legal, surveying, engineering, architectural, zoning, historic-preservation or permitting advice. Boston shed requirements vary according to the property, neighborhood zoning article, shed size, height, use, building separation, historic status and current regulations. USA Site Plans is an independent drafting service and is not affiliated with the City of Boston or Commonwealth of Massachusetts. A drafted site plan does not establish legal property boundaries or replace a certified plot plan, licensed survey, construction drawings, engineering or another professionally certified document when required. Confirm current requirements with Boston Inspectional Services before purchasing, placing or constructing the shed.