Marlboro's Next Townhomes Are Planned for a Former Salvage Yard. The Affordable Housing Math Explains Why.

The newest market-rate townhomes Marlboro has approved will stand on a 21.5-acre site at 77 County Road 520. Until recently it was Arky's Auto Salvage, and it still carries a New Jersey Department of Environmental Protection lien. Those 122 market-rate homes are there because Marlboro needed the 53 affordable homes approved alongside them. The arithmetic behind that pairing comes from the township's court-approved housing plan, and it now decides where new attached housing goes in Marlboro and how much of it gets built.

If you are weighing a townhome in Marlboro against a single-family resale here or in a neighboring town, the new-construction option comes from a legal obligation more than from builder demand. Sites, timing and site history all follow from that obligation.

What the Planning Board Approved on September 16

On September 16, 2026, the Marlboro Planning Board heard application P.B. 1239-26 from American Properties at Marlboro II Urban Renewal. The application sought preliminary and final site plan approval for Block 268, Lot 79. The minutes describe the project this way:

• 175 two-story townhomes in 22 buildings, with 53 non-age-restricted affordable units
• A clubhouse, grilling area and tot lot, with 24-foot drive aisles throughout
• 460 parking spaces, plus EV chargers at some units and in the street parking area
• Driveways for the market-rate units and a dedicated parking space for each affordable unit
• Seven stormwater basins, a 25-foot buffer, and a fence around the whole property, added after residents raised concerns
• A single build, with no phases

The application was variance-free. The applicant asked for waivers on tree replacement and agreed to pay into the township tree bank. After the public forum, the board voted to approve the application with the items discussed.

The friction for a future buyer comes earlier in the minutes. Greg Kanter, a principal of American Properties, told the board the site has DEP approval to remediate, that the cleanup should take about three to six months, and that contaminated soil will be trucked to a fully licensed facility. He also said the DEP has done cleanup work on the property over the past few years and holds a lien on it. The architect's testimony puts the affordable count at 52 rather than the 53 in the application. The board's stated figure is 53.

So the realistic order of events is remediation first, then building. A buyer reserving early is betting on that sequence holding to schedule. The approval record does not show that construction has started.

The 30 Percent Rule Behind the Approval

Marlboro's revised Housing Element and Fair Share Plan, dated February 6, 2026, records a Fourth Round obligation of 370 affordable units for 2025 through 2035. That number came out of a court settlement and replaced the township's challenged initial figure of 279. The settlements were with Fair Share Housing Center and US Home LLC, doing business as Lennar. The court approved the amended plan on February 25, 2026, and the Council adopted implementing ordinances on March 12, according to the township's filing with the court.

The plan's biggest single tool is scattered-site redevelopment, which accounts for 147 credits plus 74 bonus credits toward the obligation. On each designated parcel, the redevelopment plan allows multifamily development with a mandatory inclusionary set-aside of 30 percent.

Under that structure, each affordable unit comes with roughly two and a third market-rate units. On County Road 520, 53 of 175 homes works out to just over 30 percent. That leaves 122 market-rate townhomes the township did not set out to create. They are what it costs to deliver the affordable count through private development. Block 268, Lot 79 appears as Site 11 on the plan's original list of scattered sites.

The rest of the pipeline in the February plan follows the same pattern. The table shows each project's status as of that February 6 revision, so some may have moved since.

The Motor Lodge shows how slowly some of these sites move. The township first authorized buying the property for affordable housing with Ordinance 2010-018. It added condemnation authority in April 2024 through Ordinance 2024-013 and has since raised its appropriation for the purchase to $6,175,000. Many of the parcels the plan relies on come with existing uses or site conditions to work through first, such as a motel and diner on Route 9 or a salvage yard under a state lien on County Road 520.

Where the Zoning Goes Next: Spring Valley and Tennent Roads

The County Road 520 approval came at the end of a busy month for the next set of parcels. On August 19, 2026, the Planning Board reviewed an engineering study of eight lots near Spring Valley and Tennent roads, totaling about 40 acres. The lots are zoned LC and are either undeveloped or underdeveloped. One resident asked the board to deny the study, citing traffic, congestion, township infrastructure, flooding and power availability. The board accepted the study anyway and recommended it to the governing body.

The Council then declared those parcels a non-condemnation area in need of redevelopment. On September 17, 2026, it adopted Ordinance 2026-010, which amends the Scattered Site Redevelopment Plan to add Block 147, Lots 6, 7, 8, 10, 11 and 43; Block 170, Lots 4 and 5; and Block 172, Lots 7, 10, 16, 19, 22 and 57, according to the Council minutes.

Several of these sit right next to parcels already on the original scattered-site list: Block 147, Lot 34 and Block 170, Lots 2 and 3 on Tennent Road, and Block 172, Lot 13.01 on Spring Valley Road. Wildflower and Wildflower II are on Tennent Road as well. Taken together, the redevelopment parcels around Spring Valley and Tennent roads are becoming the biggest cluster in Marlboro's multifamily pipeline. The designation and the plan amendment are adopted. No site plan for the newly added lots appears in these records yet, so anyone looking at a single-family home nearby should ask what the amended plan allows on each lot.

What the County Numbers Say About This Segment

Public monthly market reports from New Jersey REALTORS cover the state and its counties. Municipal reports are limited to members, so the figures below describe Monmouth County as a whole and should not be read as Marlboro figures.

In September 2026, the county's single-family median sale price was $811,500, up 2.7 percent from a year earlier, with 3.0 months of supply. The townhouse-condo median was $566,600 for the month. That is up 6.9 percent, but the year-to-date townhouse-condo median through September was $550,000, up only 1.0 percent. Townhouse-condo closed sales fell 14.5 percent in September, and supply rose 12 percent to 2.8 months, according to the New Jersey REALTORS September 2026 Monmouth County report.

Using year-to-date medians, attached homes sold for about $260,000 less than single-family homes across the county through September. The September jump in the townhouse median comes from fewer sales. The full-year figure is the steadier signal. Attached-segment supply is also loosening slightly. Marlboro's coming market-rate inventory falls into that segment: 122 townhomes on County Road 520, plus whatever the newly designated Spring Valley and Tennent parcels produce.

For a townhome buyer, that adds options and a builder offering new product. For anyone planning to resell a Marlboro townhome in a few years, it means competing with a new-construction pipeline the township is legally committed to producing. The court-approved plan runs through 2035.

Questions to Put to Any New Marlboro Townhome Project

Each question below comes from something in the public record above.

1. Where does remediation stand? On a site like 77 County Road 520, ask for the current status of the DEP-approved cleanup and how the developer expects the existing DEP lien to be handled before closing.
2. Which units are market-rate, and which are deed-restricted? The County Road 520 approval gives market-rate units driveways and affordable units dedicated spaces. Parking, layout and pricing differ by unit type.
3. What is next door on the zoning map? Look up adjacent blocks and lots against the scattered-site list and Ordinance 2026-010 before assuming a nearby field will stay open.
4. When is the first delivery date? At County Road 520, the cleanup estimate of three to six months comes before construction, and the project is not phased, so no early group of homes finishes ahead of the rest. Plan any rate lock or lease end date with that in mind.

A Few Common Questions

Is the County Road 520 project age-restricted? The application describes its 53 affordable units as non-age-restricted, within a 175-townhome project.

How long does the current obligation run? The plan sets 370 affordable units for 2025 through 2035. The court approved the amended plan by order on February 25, 2026.

Where are the affordable units described in detail? The township's Housing Element and Fair Share Plan lists each site, its unit type and its credits.

This post is general information about public records and market conditions. It is not legal, tax or financial advice, so please confirm the specifics of any purchase with your attorney, lender or other qualified professional.

If you are deciding between a new townhome on Marlboro's redevelopment parcels and a resale home elsewhere in Monmouth County, Jillian Abbadessa can go through the approvals, the adjoining parcels and the county numbers with you before you commit. Let's Connect.