Home Additions in Hartsdale, NY

Westchester Home Addition Service Serving Hartsdale

More living space for Hartsdale homes, from rear family rooms to second-floor bedrooms, with Greenburgh permits handled by Guardian.

Hartsdale Homes and How They Grow

Between 1880 and 1940, Hartsdale’s farms and estates were broken up into neighborhoods of houses and apartments. Warburg Woodlands dates to 1904. Many homes from that era have small kitchens and too few bathrooms for modern families.

Most Hartsdale lots leave room to build at the back or over a one-story section, and those are the additions we build most often.

Addition Types

Every option is designed around the existing structure and Greenburgh’s zoning.

Rear kitchen expansion

Push the kitchen out and add an eat-in area.

Second-floor addition

New bedrooms and a bath over a garage or one-story wing.

Primary suite

Bedroom, walk-in closet and bathroom in one addition.

Mudroom entry

A practical side entry with storage and laundry.

A Finished Example

The house pictured is a Guardian build with green vinyl siding, white windows and a new entry stair. We manage additions the same way: one Guardian project manager, licensed and insured subcontractors for plumbing, electrical and HVAC, and inspections scheduled with the Town.

Guardian has been in construction since 1980 and holds Westchester County HIC #WC-38383-H24. Workmanship carries a one-year written warranty. Financing available, and you can read our Google Reviews.

Questions We Answer at the First Visit

How much the zoning allows you to add, and where
Whether the existing foundation and framing can carry a second floor
Whether the heating and electrical systems can serve the new rooms
How the roofline of the addition will tie into the house
What the review for excavation on a sloped lot may involve

Clear answers early save redesign later and make the permit application smoother.

After the visit we put the answers in writing with the estimate, so you can compare options and talk them over at home before you commit to drawings. If the zoning or structure rules out an idea, we will tell you plainly and suggest an alternative. We also note any existing work that may need to be legalized first. On tight lots we also plan where materials, the dumpster and equipment will go.

Hartsdale Addition FAQs

Who issues permits for Hartsdale additions?

Hartsdale is a hamlet in the Town of Greenburgh, so the Greenburgh Building Department at 177 Hillside Avenue (914-989-1560) handles them.

Is there a steep slope or wetland review?

For exterior work that involves excavation, which every addition with a new foundation does, Greenburgh requires steep-slope and wetland clearance. Flat lots usually clear quickly. Sloped lots may need more review.

What does the application package include?

An original plus two copies, inked signatures, a notarized affidavit of ownership, insurance naming the Town, a copy of the contractor’s Westchester County license and, where there is one, a letter from your homeowners association.

What codes apply?

Greenburgh lists the 2025 New York State building, residential, plumbing, mechanical and energy codes, along with the 2023 National Electrical Code.

More for Hartsdale Homeowners

We also remodel kitchens and baths and build custom homes in Hartsdale.

Free Estimate for a Hartsdale Addition

Call 914-912-0385 or use the form below.

Guardian Remodeling Corp · 143 Lake Shore Dr W, Carmel, NY 10512 · 914-912-0385 · Frank@guardianremodelingcorp.com