Q: Does Hartwell Home Improvement have financing options for clients?
A: Yes!, through out partnership with RenoFi.
A: Building an Accessory Dwelling Unit (ADU) offers several compelling advantages over a standard home addition, depending on your goals for space, income, and lifestyle. Here’s why many homeowners in our area choose an ADU:
Q: What are the benefits of building an ADU instead of a traditional home addition?
A: Building an Accessory Dwelling Unit (ADU) offers several compelling advantages over a standard home addition, depending on your goals for space, income, and lifestyle. Here’s why many homeowners in our area choose an ADU:
Rental Income Potential — Unlike a home addition, which simply expands your living space, an ADU is a fully self-contained unit with its own kitchen, bathroom, and entrance. This allows you to legally rent it out for long-term or short-term income, helping offset construction costs and even paying for itself over time. Many of our clients enjoy hundreds or thousands of dollars in monthly passive income.
Greater Flexibility for the Future — An ADU can serve multiple purposes over the years: housing aging parents or adult children (multigenerational living), providing a private guest suite, a home office, or even an artist studio. When your needs change, you can easily repurpose it without major renovations to your main home.
Less Disruption During Construction — Home additions often require opening walls, altering your roof, and living with ongoing construction noise and mess inside your primary residence. Many ADUs (especially detached or prefab options) are built with minimal intrusion—often in weeks or months rather than extended timelines that disrupt daily life.
Streamlined Permitting and Approvals — In many jurisdictions, ADUs benefit from “by-right” permitting, reduced red tape, exemptions, and lower impact fees compared to traditional additions. This can mean faster approvals and fewer headaches with neighbors or planning boards.
Strong Return on Investment and Property Value — While costs vary, ADUs frequently deliver excellent ROI through rental income and increased resale appeal. Homes with ADUs often attract multigenerational buyers or investors and can command higher market values—sometimes significantly more than a comparable addition without rental potential.
Privacy and Independence — An ADU gives occupants their own separate space while keeping family close. This setup works beautifully for in-laws, guests, or tenants who want independence without moving off your property.
Q: Are ADUs allowed in Lafayette, and what recent code changes make them easier and more practical to build here?
A: Lafayette Consolidated Government has made it easier than ever to add a backyard home, guest suite, or rental unit to your property. Recent updates to the Unified Development Code (UDC) have removed many of the old barriers that kept ADU construction low in the Acadiana area. Combined with strong local demand for extra living space and rental income, Lafayette is now one of the smartest places in Louisiana to build an Accessory Dwelling Unit (ADU).
Recent Code Changes That Make ADUs Practical and Affordable
In 2024, Lafayette updated Section 89-74 of the UDC with homeowner-friendly reforms designed to boost housing options. Here’s what changed:
Larger units allowed — The maximum living area increased to the greater of 800 square feet or 25% of your primary home’s gross floor area (previously capped at 500 sq ft). This opens the door for truly functional studios, one-bedrooms, or even small two-bedroom units.
No extra parking required — The city eliminated the previous requirement for additional off-street parking spaces for the ADU.
Reduced rear setback — Detached ADUs now need only a 5-foot minimum rear setback, giving you more usable backyard space on typical Lafayette lots.
More flexibility overall — The definition of an Accessory Apartment was broadened, and ADUs remain permitted by right in nearly all residential zones (RS-1, RS-2, RM, MN, etc.). Only commercial-heavy (CH) zones now require a conditional use permit.
A minor 2025 clarification confirmed the 5-foot setback applies consistently across the city and unincorporated parish areas. These changes are already in effect and make code-compliant construction faster and less expensive.
Q: Where in Lafayette are ADUs Are Allowed?
A: ADUs are permitted by right (P) in most residential zoning districts, including:
RS (Residential Single-Family, now often split as RS-1 and RS-2)
RM (Residential Mixed)
MN (Mixed-Use Neighborhood)
And others as shown in the UDC Use Table (Section 89-21).
One ADU per lot only.
Allowed as attached (e.g., in the main home) or detached (separate structure in the backyard).
ADUs must remain subordinate to the primary single-family residence and cannot be sold separately (but can be rented).
Lafayette encourages ADUs to support affordable housing, multi-generational living, and rental income.
Q: What Are the Size Limits (Maximum Living Area)?
A: Updated maximum: 800 square feet (heated/cooled living space).
This is an increase from the previous limit of 500 sq ft (or the greater of 500 sq ft or 25% of the primary home's gross floor area).
The ADU must stay smaller than the main home to remain "accessory."
This change (from 2024 amendments) makes larger, more practical units possible, especially helpful for your 3-Tier pre-approved program.
Q: Setbacks and Placement?
A: Rear setback: Minimum 5 feet for detached ADUs (updated in amendments to provide more flexibility; previously often tied to the principal structure's larger setbacks).
Side and other setbacks generally follow standard residential requirements or the principal structure, but must comply with building and fire codes.
Detached ADUs are typically placed in the rear yard.
Must meet all drainage, utility, and easement rules. No placement in utility easements without approval.
Q: Parking Requirements?
A: No additional parking required for the ADU (major relaxation in recent amendments to encourage development).
The existing off-street parking for the primary home is usually sufficient.
This is a big plus for many Lafayette lots, especially in older neighborhoods.
Q: Other Key Rules and Standards?
A: Height: Must comply with the zoning district's standards (typically similar to or lower than the main home; check specific district rules).
Utilities: Separate metering or connections may be needed (e.g., sewer line often requires a separate permit and Right-of-Way permit). The ADU must meet all applicable building, electrical, plumbing, and fire codes (Lafayette uses the International Residential Code with local amendments).
Rental: Allowed — the ADU can be rented to a separate household, providing extra income. Short-term rentals may have additional restrictions under other city code chapters.
Design: The ADU should blend with the neighborhood character. Recent amendments added flexibility in the definition of "Accessory Apartment."
Historic districts or special areas: Additional review or alternative compliance options may apply; the Administrator can sometimes provide flexibility.
Prohibitions: Cannot create a separate saleable parcel. Must not violate any covenants or HOA rules (if applicable).
Q: What is the Permitting Process Like?
A: For the client, the process is simple, because HHI does all the heavy lifting for you with our well-studied process that we undertake on your behalf.
A building permit is required for new construction or significant modifications to a detached ADU.
Additional permits may be needed for utilities, sewer, or right-of-way work.
Plan review involves the Development & Planning Department. Submit site plans showing setbacks, floor plans, elevations, and drainage.
Timeline: Varies, but ministerially approved projects move faster.
