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Pflugerville, TX Accessory Structures: ADU Rules (2026)

Some Restrictions

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

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

Key Facts

Governing section: UDC 4.6.3
Owner-occupancy: Owner must reside on-site
Maximum size: Half of home's first-floor area
Detached separation: 10-foot minimum from main house
Metering: No separate water/sewer meter

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 Pflugerville, TX rules below cover local size, height, and setback requirements.

Summary

Pflugerville allows both attached and detached accessory dwelling units on single-family lots, but only if the property owner lives in the principal house. The ADU's floor area cannot exceed half the main home's first-floor living area, and it can never be subdivided or metered separately.

A. Attached Dwelling Units: 1. An attached dwelling unit shall be permitted provided the owner of the principal structure resides in the principal structure... 4. The floor area of the attached dwelling unit shall not be greater in size than half of the first floor's gross floor living area of the principal structure. B. Detached Dwelling Units: ... D. At no time shall a detached accessory dwelling unit have a separate water or wastewater meter, or be allowed to be subdivided from the principal lot.

View official code

Full Breakdown

Section 4.6.3 of the Unified Development Code governs garage apartments, casitas, and backyard cottages. Both attached and detached units are permitted by right only when the owner of the principal structure resides in it. Floor area is capped at half the principal home's first-floor gross living area. A detached unit sits behind the rear facade with a minimum 10-foot building separation, must match the main house's materials under Subchapter 9, and gets no separate water or wastewater meter. The lot cannot be subdivided from the ADU. The Development Services Center reviews the building permit.

Violations & Fines

Building without owner-occupancy, exceeding the half-size cap, installing a separate water or wastewater meter, or subdividing the ADU lot violates the UDC; the Development Services Center can deny permits, halt construction, and require correction.

Frequently Asked Questions

Can I rent out my Pflugerville ADU?

You may rent the accessory unit, but the property owner must live in the principal house. Both units cannot be leased to non-owner tenants under UDC 4.6.3.

How big can a Pflugerville ADU be?

The accessory unit's floor area cannot exceed half of the principal home's first-floor gross living area, whether the unit is attached or detached.

Can a detached Pflugerville ADU be sold separately?

No. A detached accessory dwelling unit cannot be subdivided from the principal lot and cannot have its own water or wastewater meter.

Sources & Official References

Other rules in Pflugerville

Parking Rules: Overnight ParkingSignificant Restrictions Parking Rules: Street Parking LimitsSignificant Restrictions Noise Ordinances: Quiet HoursSome Restrictions Noise Ordinances: Construction HoursSome Restrictions Shed & Carport RulesSome Restrictions Noise Ordinances: Amplified Music & Outdoor SoundSome Restrictions Parking Rules: Commercial & Oversized VehiclesSignificant Restrictions

All Pflugerville rules

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

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ADU Rules in Nearby Cities

How other cities in Travis County handle adu rules.

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Few Restrictions