Second Story Addition in Trenton, NJ
Full second story additions to expand square footage without losing yard space. Serving Trenton and Mercer County.
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Second Story Addition in Trenton
Full second story additions to expand square footage without losing yard space. In Trenton, this work is handled under a single contract with fixed pricing. NJ's state capital with row homes, Victorians, and colonials in historic urban neighborhoods.
Part of our full additions service for Mercer County homeowners. We coordinate all trades, handle permits, and communicate clearly from start to finish. No subcontractors to manage.
How second story addition works in NJ →Get Started
Free estimates on all second story addition projects in Trenton. No obligation.
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What It Costs
Additions Costs in Trenton
These are the ranges Mercer County homeowners typically pay. Your written price comes after a free site visit and does not change once you approve it.
Price Yours With the Home Addition Cost CalculatorBump-Out Addition (under 200 sq ft)
Cantilevered or shallow-footing extension of an existing room.
$35,000 – $65,000
Single Room Addition
New foundation, framing, roofline, and full interior finishes.
$65,000 – $130,000
In-Law or Primary Suite
Bedroom, bath, and utility connections. May require structural reinforcement.
$100,000 – $200,000
Second Story Addition
Full second floor added to a ranch or cape cod. Engineer review required.
$150,000 – $380,000+
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Price your home addition in Trenton first
Enter the size and material and get a NJ price range adjusted for your region, then a firm estimate from a Ridgeline specialist.
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Fixed pricing agreed before any work begins. We respond within one business day.
FAQs
Common Questions
Do you offer second story addition in Trenton, NJ?
Yes. Ridgeline Remodeling Group offers second story addition in Trenton and throughout Mercer County. We also serve nearby towns including Hamilton Township, Ewing Township, Lawrence Township. Estimates are always free.
What does second story addition cost in Trenton?
Second Story Addition typically runs $150,000 – $380,000+ in New Jersey. Your price depends on size, materials, and the condition of the existing structure. We give a preliminary range by phone and a written fixed price after a free site visit. No surprise invoices.
Does second story addition in Trenton need a permit?
If the work touches structure, plumbing, electrical, gas, or roofing, Trenton requires a construction permit under the NJ Uniform Construction Code. Ridgeline applies for the permit, schedules inspections, and includes the fees in your fixed price.
More Additions in Trenton
Room Addition in Trenton
Add a new room to your home — bedroom, living space, or flex room.
Sunroom Addition in Trenton
Three-season and four-season sunroom additions.
In-Law Suite Addition in Trenton
Self-contained in-law suite additions with bedroom, bath, and kitchenette.
Master Suite Addition in Trenton
Primary bedroom and bath additions for expanded comfort and privacy.
Ready to Start Your Second Story Addition Project in Trenton?
Get a free estimate. Fixed pricing, no surprise invoices.