House Plans and Custom Drafting in Long Island (Nassau & Suffolk Counties), NY
Service Area: Long Island (Nassau & Suffolk Counties), NY
Nassau County's median sale price runs roughly $835,000 to $890,000. Suffolk sits around $700,000 to $718,250. That makes Long Island the most expensive housing market in New York outside Manhattan itself, and it changes the math for almost every homeowner here. When the lot and the house underneath it already represent that kind of equity, tearing down and starting over rarely pencils out. Adding a second story, finishing a basement, converting a garage, or reconfiguring a layout to fit a growing or aging household does. Long Island's drafting demand is a remodel and addition story first, not a new-construction story.
What the permit numbers say about Long Island building
Nassau County issued 666 single-family permits in 2024, covering 824 units. Suffolk County issued 1,152 permits covering 1,366 units, roughly double Nassau's volume on a larger, less built-out land base. Set against a combined population of about 2.93 million across the two counties, that is a modest amount of ground-up new construction relative to the number of existing households. Most of Nassau in particular is already built out, with little vacant land left to develop. The practical result is that when a Long Island household needs more space, more accessibility, or a better-functioning layout, the answer usually involves the house that is already there, not a new one down the street.
Suffolk's higher permit count reflects more available land toward the eastern half of the county, but even there, an addition or a reconfigured floor plan is often faster to permit and build than a full new build, and it avoids the cost of acquiring a second lot in a market where land itself carries a premium.
ADU rules on Long Island: no local legalization to point to
New York has no statewide accessory dwelling unit mandate. A bill to create one has been introduced in Albany repeatedly since 2021 and has not passed. Governor Hochul's own 2022 push for a statewide ADU policy was narrowed and then withdrawn after pushback from suburban lawmakers, and Long Island representatives specifically were part of the opposition that kept it from applying outside New York City. The ADU reforms that did pass, the 2024 City of Yes for Housing Opportunity rules and their implementing local laws, are scoped to New York City only. They do not extend to Nassau or Suffolk County.
That means an ADU, an accessory apartment, or an in-law suite on Long Island is governed entirely by the zoning code of the specific town or village where the property sits, not by any statewide or county-wide standard. Two towns a few miles apart can have very different rules on accessory units, setbacks, and owner-occupancy requirements. We build ADU and accessory-unit drawings around whatever the local zoning code actually allows rather than assuming a uniform state rule, because on Long Island there isn't one.
Where the drafting demand concentrates on Long Island
Home Additions & Remodel Drafting
With home values this high and buildable lots this scarce, expanding the existing house is the default move for most Nassau and Suffolk homeowners who need more room. This is the service that maps most directly onto Long Island's actual permit and price data.
Multigenerational & Universal Design
Aging parents moving in, adult children staying longer, or a household that needs a ground-floor bedroom and bath all point to the same answer on a market where relocating is expensive: reconfigure the existing home instead of buying a second one.
Permit-Ready Drawings & As-Builts
Older Long Island housing stock, much of it built well before current code, means as-built documentation is frequently the starting point before any addition or renovation can be permitted through the local building department.
ADU Plans & Design
Since there is no statewide or Long Island-specific legalization to rely on, ADU demand here is driven by individual homeowners checking their own town's zoning and pursuing an accessory unit where it is already allowed, often for rental income or family housing on an expensive lot.
A crowded, established local market
Long Island has no shortage of long-running local drafting firms, including Oyster Bay Drafting and Architecture, which has operated for more than 25 years, JL Drafting at 17-plus years, and Long Island Drafting Service. We are not positioning against their tenure. Apex Drafting Services is a newer, fully remote operation, and we compete on responsiveness and a process built around digital review rather than a physical storefront in Nassau or Suffolk County. For homeowners and contractors who are comfortable handling site details and revisions digitally, that model works the same on Long Island as it does anywhere else we serve.
Long Island Drafting FAQ
Does Apex Drafting have an office on Long Island?
No. Apex Drafting Services is a fully remote drafting company. We serve Nassau and Suffolk County homeowners, builders, and contractors remotely, the same way we serve clients across New York State. There is no local office or in-person meeting requirement.
Is there a New York ADU law that applies to Nassau or Suffolk County?
No. New York has no statewide ADU mandate. A statewide bill has been introduced repeatedly since 2021 without passing, and Governor Hochul's 2022 statewide ADU proposal was withdrawn after opposition from suburban and Long Island lawmakers, who were a specific reason it was narrowed to New York City only. The 2024 City of Yes ADU rules apply inside NYC, not on Long Island. Any ADU project in Nassau or Suffolk County is governed by that town or village's own zoning code, so it needs to be checked locally before drawings start.
Is Long Island seeing more new construction or more remodeling?
Remodeling and additions are the larger driver of drafting demand here. Nassau County issued 666 single-family permits in 2024 (824 units) and Suffolk County issued 1,152 (1,366 units), which is real but modest volume for a combined population of roughly 2.93 million. With Nassau median sale prices around $835,000 to $890,000 and Suffolk around $700,000 to $718,250, the highest home values of any New York market outside Manhattan, expanding or renovating in place is often the more practical move than buying up or building new on a scarce, expensive lot.
How is drafting handled remotely for a Nassau or Suffolk County project?
Site information, existing conditions, and measurements are gathered digitally (photos, measurements, and existing documentation you provide, or a local surveyor/measuring service if needed), and drawings are developed and revised with you through digital review rounds. Because the process is document and file-based rather than dependent on a local office, it works the same whether the property is in Nassau or Suffolk County.
Related services
Other New York service areas
Get Your Long Island Project Started
Whether it's an addition, a remodel, or an ADU checked against your town's zoning, we'll scope it and quote it remotely, no local office required.