Plain-English guide

Woodstock ADU rules, zoning & requirements

Before you fall in love with a floor plan, here's what the City of Woodstock actually requires of an accessory dwelling unit — and the one rule that disqualifies more homeowners than any other.

Updated June 2026 · Woodstock ADU

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The rules below are a homeowner-friendly summary, not an official zoning determination. Eligibility, fees, and requirements are set by the City of Woodstock and can change. The fastest way to know where your lot stands is to run it through our address checker, which queries the City's own GIS.

1. You must be inside the City of Woodstock

This is the rule that catches the most people. The Pre-Approved ADU Program applies to parcels inside the City of Woodstock limits. A great many addresses with a "Woodstock, GA" mailing address actually sit in unincorporated Cherokee County — a separate jurisdiction with its own, different rules.

You can't tell from the ZIP code or the mailing address alone. Our tool checks your parcel against the City of Woodstock's GIS to confirm jurisdiction before you spend a dollar. Check your address →

2. One home on the lot must be owner-occupied

Woodstock allows an ADU as a genuine second home on your property, on one condition: one of the two homes must be owner-occupied. That gives you flexibility:

What you can't do is own the property, live elsewhere, and rent out both units. The owner has to live in one of them.

3. The ADU can be up to 40% of your main home

An ADU's floor area is generally capped at 40% of the primary home's floor area. This is the rule that decides which plans your property can support. A bigger ADU requires a bigger main house:

PlanADU sizeApprox. minimum main home
The Carriage631 sq ft~1,578 sq ft
The Cottage660 sq ft~1,650 sq ft
The Bungalow684 sq ft~1,710 sq ft
The Homestead1,032 sq ft~2,580 sq ft
The Overlook1,064 sq ft~2,660 sq ft

The eligibility tool reads your home's size and shows only the plans you actually qualify for — no guesswork.

4. Your lot needs room in the right place

Beyond size, the City looks at where the ADU sits: setbacks from property lines, buildable area behind or beside the main house, access, and how the unit connects to utilities. Exact setback distances depend on your zoning district, so we confirm them for your parcel rather than quoting a one-size-fits-all number. In practice, the question is simply: is there a code-compliant spot for the cottage on your lot? — which the site review answers.

5. Renting: yes, with the owner-occupancy rule

Long-term renting of the ADU (or the main house) is allowed as long as the owner lives in one of the two. Short-term / nightly rentals are treated differently and are subject to the City's current short-term-rental policy, so don't bank on Airbnb-style income without confirming the latest rules first.

6. How the Pre-Approved Program changes the process

Woodstock pre-approved five ADU plans so homeowners don't have to design and engineer one from scratch. Because the plans already cleared structural, architectural, and zoning review, the City's six-step process is shorter and more predictable:

StepWhat happensWho does it
1. EligibilityConfirm city limits, zoning, and spaceYou + us
2. Choose a planPick one of the five pre-approved designsYou
3. Site plan (HLP)Draw the required House Location PlanWe handle it
4. Permit & reviewSubmit through Planning & BuildingWe handle it
5. BuildConstruct to the approved plansWe handle it
6. Inspect & move inClear final inspections & get the COWe handle it

Frequently asked: Woodstock ADU rules

Can I build an ADU in Woodstock, GA?
If your parcel is inside the City of Woodstock, in an eligible zone, with room behind the house, almost certainly yes. The big disqualifier is being in unincorporated Cherokee County despite a Woodstock mailing address. Check your lot →
How big can my ADU be?
Up to roughly 40% of your main home's floor area. The five pre-approved plans run 631–1,064 sq ft; the larger ones need a larger primary home. See the size table above.
Do I have to live there?
One of the two homes must be owner-occupied. You choose which one.
What will it cost?
Fixed plan prices run $188,000–$286,000 plus city fees. See the full ADU cost guide.

Find out if your lot qualifies — for free.

Enter your address and we'll check city limits, zoning, and which plans your property supports against the City's own data.

Check my eligibility →

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