Philadelphia homeowners looking to add space to their properties often debate between building up (adding a second or third floor) or building out (expanding the home’s footprint). Each option has its advantages and considerations, so it’s important to evaluate factors such as lot size, zoning laws, costs, and structural feasibility.
🔼 Building Up: Adding a Second or Third Floor
Building up is often the best choice in urban areas like Center City, Fishtown, and South Philly, where lot sizes are limited.
- Maximizes living space without sacrificing yard area.
- Increases home value significantly by adding more square footage.
- Preserves outdoor space for gardens, patios, or parking.
- Ideal for rowhouses with limited expansion options.
🚧 Challenges to Consider:
- Requires structural reinforcements to support the additional weight.
- May need a zoning variance depending on height restrictions.
- Can be more complex and require significant interior remodeling.
📏 Building Out: Expanding Your Home’s Footprint
For homes in areas with more space—such as Manayunk, Chestnut Hill, and Montgomery County—building out can be a more straightforward approach.
- Easier to obtain permits from Philadelphia L&I Permit Information.
- Doesn’t require structural reinforcements to existing walls.
- More design flexibility for additions like larger kitchens or extra bedrooms.
🚧 Challenges to Consider:
- Reduces yard space, which may not be ideal for families or pets.
- Requires stronger foundation work to support the new structure.
- May need setback approval depending on property lines.
