- 229 W. Rockland St, Philadelphia, PA 19120
- titanandsonconstructionllc@gmail.com
ROOM ADDITIONS & ADUs
PHILADELPHIA PA
EXPAND YOUR PHILADELPHIA HOME. ADDITIONS, ADUs & GARAGE CONVERSIONS
Titan and Son Construction LLC builds room additions, home additions, accessory dwelling units (ADUs), and garage conversions throughout Philadelphia, PA and surrounding counties. We handle every step from zoning research and architectural plans to foundation work, framing, systems, and finish.
ROOM ADDITIONS
Types of additions we build in Philadelphia
We build all types of home additions for Philadelphia properties every one designed to match your home’s existing roofline, siding, and architectural character.
Room Additions. First & Second Floor
Accessory Dwelling Units (ADUs)
Garage Conversions
Rear Additions & Bump-Outs
Rear additions are common for Philadelphia row homes, adding larger kitchens, dining rooms, family rooms, or primary bedroom suites while respecting lot coverage rules.
Second-Story Additions
REAL PROJECTS. REAL RESULTS. YOUR HOME COULD BE NEXT.
Over 5,000 bathrooms transformed across South Jersey all completed in-house by our licensed team.
Our home addition process Philadelphia PA
Additions are complex residential projects, so we start with zoning and engineering not a sledgehammer.
Zoning Research & Free Estimate
Design, Engineering & Permits
Foundation, Framing & Systems
Finish & Final Walkthrough
GOT QUESTIONS?
Feel free to ask we are here to provide all the answers you need and make sure you are fully informed before any work starts.
FREQUENTLY ASKED
QUESTIONS
Can I add a room to my Philadelphia row home?
Yes. Room additions are possible on most Philadelphia row homes, though the type and size depend on your zoning designation, lot size, and rear yard depth. The most common addition type is a rear addition extending into the back yard.
What is an ADU and can I build one in Philadelphia?
An ADU is a self-contained secondary living unit on the same property as a primary residence. Philadelphia allows ADUs in many residential zones by-right or with a variance, depending on the property.
How long does a room addition take in Philadelphia?
A small bump-out takes 6–10 weeks, a rear addition 8–16 weeks, a garage conversion 6–12 weeks, an ADU 3–6 months, and a second-story addition 4–8 months, plus L&I permit processing.
How much does a home addition cost in Philadelphia?
Home addition costs range from $20,000–$50,000 for a small bump-out, $50,000–$120,000 for a rear addition, $25,000–$60,000 for a garage conversion, and $60,000–$150,000 for an ADU.
Do I need a permit to add a room in Philadelphia?
Yes. All room additions require building permits from Philadelphia L&I. Additions involve structural work, electrical, plumbing, and often HVAC, all of which require permits and inspections.
Ready to expand your Philadelphia home?
Whether you are planning a rear addition, ADU, garage conversion, or second-story expansion, Titan and Son Construction LLC handles zoning, permits, and construction from start to finish.