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Parker, TX Accessory Structures: ADU Rules (2026)

Significant Restrictions

Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

ADU rules in Parker, TX, also called accessory dwelling unit regulations or granny flat ordinances, cover setbacks, owner-occupancy, parking, and permit requirements.

Key Facts

Approval needed: special use permit: P&Z hearing + Council
Minimum living space: none required
Building materials: same standard as primary residence
Max height: 2 stories, capped at primary residence height
Applies in: SF and A-O zoning districts
Max fine: $2,000 per offense, per day

ADU Eligibility Quick-Check

An Accessory Dwelling Unit (ADU) is a smaller, independent living unit on the same lot as a single-family home: converted garages, detached cottages, basement or attic conversions, and attached additions all qualify. Most states have streamlined ADU permitting since 2020, but local rules still control size, height, and setback.

Is your lot zoned single-family or multi-family residential?
Does your lot have at least 1,200 sq ft of buildable space?
Is your existing home owner-occupied (in most states this is not required, but some require it for ADU permits)?
Will the ADU stay under your state's size cap (commonly 850-1,200 sq ft for detached)?
Can you provide one off-street parking space (waived in many states within 0.5 mi of transit)?

If you answered 'yes' to most of these, you likely qualify in Texas under recent ADU streamlining laws. The Parker, TX rules below cover local size, height, and setback requirements.

Summary

Parker only allows a garage apartment or other accessory dwelling in its single-family district after City Council grants a special use permit under City Code § 156.32(B)(2)(a) and (F)(3). The unit cannot exceed the height of the main house and must match its exterior materials.

(3) Accessory dwellings. Accessory dwellings may be constructed only after the issuance of a special use permit. (a) Minimum living space. There is no minimum living space requirement. (b) Building materials. Same requirements as primary residence. (c) Maximum height. The maximum height for any accessory buildings shall be two stories above the finished foundation elevation, not to exceed the height of the primary residence.

View official code

Full Breakdown

32(B)(2)(a) lists an accessory dwelling as a conditional use in the single-family (SF) district, meaning it needs a special use permit application, a Planning and Zoning Commission hearing, and final approval by City Council before it can be built; it is not allowed by right alongside the primary residence. 32(F)(1)(a). 32(F)(1)(b). Height is capped at two stories above the finished foundation elevation, and critically the accessory dwelling can never exceed the height of the primary residence on the same lot, even if the two-story cap would otherwise allow it. 31(B)(2)(c), also requiring a special use permit there.

Violations & Fines

Constructing an accessory dwelling without the required special use permit, or in violation of the height or materials standards, is a misdemeanor under § 156.99(B)(1), carrying a fine of up to $2,000 per offense, with each day of continued violation a separate offense.

Frequently Asked Questions

Can I build a garage apartment on my Parker property?

Only with a special use permit. Section 156.32(B)(2)(a) lists accessory dwellings as a conditional use in the single-family district, requiring a Planning and Zoning Commission hearing followed by City Council approval before construction.

How tall can an accessory dwelling be in Parker?

Section 156.32(F)(3)(c) caps an accessory dwelling at two stories above the finished foundation elevation, and it cannot exceed the height of the primary residence on the same lot.

Does an ADU need to match the main house's exterior?

Yes. Section 156.32(F)(3)(b) requires accessory dwellings to meet the same building material requirements as the primary residence, including the masonry percentages set out in § 156.32(F)(1)(b).

Is there a minimum size for an accessory dwelling in Parker?

No. Section 156.32(F)(3)(a) states there is no minimum living space requirement for an accessory dwelling, unlike the 2,500-square-foot minimum imposed on the primary residence.

Sources & Official References

[1]Parker, TX Code of Ordinances § 156.32 — Single-Family Residential District

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All Parker rules

How Parker compares: Easiest Cities to Build an ADU·Texas rules heatmap·Compare Parker to another location·View the Texas accessory structures overview

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