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Combining Townhouses in Florida: A Guide to Creating a Single-Family Home

12/04/2025

Combining two adjacent townhouses into a single-family residence is a strategic renovation that can significantly increase living space and property value. This process, exemplified by a high-profile project in Palm Beach, involves obtaining specific municipal approvals, navigating construction logistics, and finalizing the legal merger of the properties. For homeowners considering a similar undertaking, understanding the steps, from securing a unity of title to redesigning outdoor areas, is crucial for a successful outcome.

What is a Unity of Title and Why is it Necessary? A unity of title is a legal instrument that merges two or more separate parcels of land into a single property under one address. This is a critical first step when combining townhouses, as it legally recognizes the newly created, larger lot for tax and ownership purposes. Without this approval from the local authorities, the properties remain legally distinct, which can complicate financing, insurance, and future sales. The process typically requires review by a local architectural or planning commission to ensure the combined property complies with zoning regulations.

What Does the Architectural Approval Process Involve? Before any construction begins, most municipalities, especially in strictly regulated markets like Palm Beach, require formal approval from an architectural review board. This commission evaluates plans to ensure the proposed renovations adhere to community aesthetic standards, building codes, and safety regulations. Key considerations often include the exterior design, the scale of additions, and changes to shared structures like walls. For a townhouse combination, approvals might cover the removal of dividing walls, the creation of additions, and significant alterations to outdoor spaces like pools and patios.

How are Outdoor Spaces and Amenities Reconciled? A major component of combining properties is reconfiguring the outdoor living areas. It is common for the project to involve consolidating amenities. For instance, rather than maintaining two separate pools, plans may call for removing one and upgrading the other. The newly unified backyard space can then be enhanced with features like an outdoor kitchen or a shower. Furthermore, properties with direct beach access, a valuable asset in Florida, must ensure that the new layout preserves or improves this access without creating logistical issues.

What are the Financial and Tax Implications in Florida? A significant financial motivation for relocating to Florida is the state's favorable tax climate. Florida has no state income tax, which can result in substantial savings for residents, particularly those moving from high-tax states. However, property taxes are a key consideration. Merging two properties can reassess the total value for property tax purposes. While the combined square footage may increase the tax base, Florida's Save Our Homes amendment can cap assessment increases for primary residences. It's advisable to consult with a tax professional to understand the specific implications.

Practical Considerations During a Major Renovation Undertaking a large-scale renovation requires careful planning for displacement. Homeowners often need to arrange alternative living arrangements if the construction is intensive. Having a secondary property, as in the case of this Palm Beach example, is one solution. Other options include temporary rentals or timing the project in phases to allow occupancy of a section of the home. The timeline for such projects can vary widely based on scope and approvals, so building flexibility into moving plans is essential.

Key Takeaways for Combining Properties

  • Secure legal and architectural approvals first. The unity of title and commission approvals are non-negotiable first steps that dictate the project's feasibility.
  • Plan for the consolidation of amenities. Evaluate which features, like swimming pools, to keep and how to enhance the new, larger outdoor space.
  • Understand the tax reassessment. Combining properties will likely trigger a reassessment for property tax purposes, impacting long-term carrying costs.
  • Arrange for temporary housing. Major construction is disruptive; having a contingency plan for accommodation is a critical part of the process.
  • Work with experienced professionals. Given the complexity, engaging architects, contractors, and real estate attorneys familiar with local regulations is highly recommended.
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