Custom Home Additions in Keyport, NJ

JSD Custom Home Builders LLC designs and builds custom home additions for homeowners across Holmdel, NJ and the surrounding area.

Call (973) 219-0813
  • Added square footage that fits your home's existing roofline and structure
  • More usable living space without the cost and stress of relocating
  • Addition design reviewed against local Monmouth County setback and lot coverage rules before construction begins
  • Finished space that matches your home's exterior so the addition looks original, not tacked on
  • Increased resale value from a properly permitted, professionally built addition
  • A builder who genuinely cares about the outcome and works to keep you satisfied throughout the project
A newly completed custom home addition on a residential property in Holmdel, NJ, showing a seamless connection between the original structure and the new framed and sided exterior. The addition extends the rear of a two-story home with matching roofline and siding.

Expert Custom Home Additions in Keyport, NJ

A custom home addition gives you more space without the cost or disruption of moving. At JSD Custom Home Builders LLC, we plan and build additions that match your existing home's structure, roofline, and style. We serve homeowners in Holmdel, Rumson, Red Bank, Middletown, Colts Neck, Hazlet, Matawan, Aberdeen, Keyport, Old Bridge, Sayreville, Parlin, and beyond. Holmdel and the wider Monmouth County area feature a range of lot sizes and residential zoning rules. Setback distances and lot coverage limits vary by township, so each addition plan needs to fit the specific property. We work through those details at the design stage so your project moves forward without surprises. Whether you need a first-floor family room, a second-story bedroom suite, or a kitchen extension, we build it to blend with what is already there. Our goal is simple: give you a finished space you are proud of and a process you can trust from the first conversation to the final walkthrough.

What's included

  • Added square footage that fits your home's existing roofline and structure
  • More usable living space without the cost and stress of relocating
  • Addition design reviewed against local Monmouth County setback and lot coverage rules before construction begins
  • Finished space that matches your home's exterior so the addition looks original, not tacked on
  • Increased resale value from a properly permitted, professionally built addition
  • A builder who genuinely cares about the outcome and works to keep you satisfied throughout the project
Mostly 5-star ratings
Licensed NJ Home Improvement Contractor
Serves Monmouth and Middlesex counties
Specializes in additions, renovations, and custom builds
Owner-operated with customer focus

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Custom Home Additions FAQ

Common questions about custom home additions in Keyport, NJ.

Yes, we build second-story additions for homeowners in Holmdel and the surrounding towns. A second-story addition adds significant square footage without reducing your yard space.

We serve homeowners across the full area, including Middletown, Red Bank, Rumson, Colts Neck, Hazlet, Matawan, Aberdeen, Keyport, Old Bridge, Sayreville, and Parlin. If your home is in one of these towns, we can help.

Yes, every addition in Holmdel and Monmouth County must stay within the setback distances set by your township's zoning code. We review those rules for your specific property before any design work begins.

We build first-floor additions, second-story additions, bedroom suites, family room expansions, and kitchen extensions. Each project is designed to connect cleanly with your existing home in Holmdel or the surrounding area.

In most cases, yes, especially when the addition is built off the back or side of the home. We discuss your specific situation upfront so you know what to expect before work begins.

Reach out to us directly to talk through your goals and your property in Holmdel or any of our service areas. We listen carefully and give you honest guidance from the very first conversation.

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What customers say.

5.0
3 Google reviews

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JSD Custom Home Builders did a great job from start to finish. The crew was professional, easy to work with, and the quality of the work really shows.

Karen B. Google review

I appreciated how clearly everything was communicated throughout the project. JSD kept things moving and the finished result was exactly what we wanted.

Tom R. Google review

Honest, hardworking, and detail-oriented. JSD Custom Home Builders took real pride in the work, and it made a big difference in how everything turned out.

Michelle D. Google review

Proudly Based in Keyport, NJ

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Hours

  • Monday 8:00 AM - 5:00 PM
  • Tuesday 8:00 AM - 5:00 PM
  • Wednesday 8:00 AM - 5:00 PM
  • Thursday 8:00 AM - 5:00 PM
  • Friday 8:00 AM - 5:00 PM
  • Saturday Closed
  • Sunday Closed

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