Detached vs Townhouse in Warren, the Price Split
Warren has two housing markets and one headline number. Over the twelve months ending September 21, 2026, the township recorded 174 closed sales at a median of $1,180,000. Split them by type and the picture changes: the 132 detached houses closed at a median $1,300,000, $423 per square foot, in 22 days, with 40.9 percent selling over the asking price. The 39 attached homes, townhouses and condominiums, closed at a median $830,000, $392 per square foot on the 28 with a living area on record, in 41 days, with 17.9 percent over ask. Attached sales are 22 percent of Warren's closings and they pull the township median $120,000 below the detached figure. Every Warren market figure on this site includes both types unless it says otherwise, and this is the page that shows what each type does on its own.
Shopping for a Warren home? Every home for sale right now, by price band, detached and attached side by side.
Two markets in one town
Same twelve months, same source, one column per type. The three sales the MLS left untyped are in the township total and in neither column.
| Measure | Detached | Attached |
|---|---|---|
| Closed sales | 132 | 39 |
| Median sale price | $1,300,000 | $830,000 |
| Price range | $425,000 to $3,400,000 | $173,572 to $1,400,000 |
| Median price per square foot | $423 on 132 | $392 on 28 |
| Median living area | 3,134 sq ft | 2,269 sq ft |
| Median days on market | 22 | 41 |
| Sold over the asking price | 40.9% | 17.9% |
| Median sale to list price | 100.0% | 96.0% |
| Median year built | 1985 | 2025 |
| Median bedrooms | 4 | 3 |
| Median lot | 1.50 acres on 131 | not comparable, see note |
| Association fee | not compared | $384 a month, median of 39 |
| Tax figure on the listing | $15,410 median on 132 | 23 of 39 under $5,000, see the tax note |
Lot size is left out of the attached column on purpose. The MLS acreage on a townhouse listing often carries the whole association's ground, and the county parcel carries a footprint of a few hundredths of an acre, so neither number describes the land a household uses. Price per square foot uses the broad basis, the county living area with the MLS figure as a fallback, which covers 132 of 132 detached sales and 28 of 39 attached.
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Why the attached number moves around
The attached median rests on 39 sales, and 23 of them closed in one place, The Hills at Warren, where the builder was still delivering units. Of the 39 attached closings, 31 were the first sale of a newly built home, all 23 at The Hills, 6 of the 7 at Fairview at Warren and 2 elsewhere, and 8 were sales of existing homes. They behave differently:
| Attached sales, twelve months | First sale of a new unit | Existing home |
|---|---|---|
| Sales | 31 | 8† |
| Median price | $785,000 | $1,232,500† |
| Median price per square foot | $395 on 22 | $349† on 6 |
| Median living area | 1,632 sq ft | 3,582† sq ft |
| Median days on market | 50 | 27† |
| Sold over the asking price | 6.5% | 62.5%† |
| Tax figure on the listing | 23 of 31 under $5,000, no median printed | $14,193† median on 8 |
† Fewer than ten sales behind the figure. Treat it as an observation, not a rate. By community: The Hills at Warren 23 sales, Fairview at Warren 7, Four Seasons at the Promenade 4, Villas at Warren 3, Warren Crossing 1 and Villages at Warren 1. When a builder is closing out a community, the attached median reads as that builder's price list. The year before, 35 attached homes closed at a median of $690,365 in 70 days, and the one before that carried a different mix again. Read the attached line one community at a time before reading it as a trend. A first sale here means no earlier closed sale of the address in the MLS record and a year built within three years before, or one year after, the closing year, or a listing marked under construction or to be built.
The lowest sale in the window, $173,572 in Villages at Warren, sits under the $200,000 arms length floor the market tape applies. This page and the market page apply no floor, so it is counted here. Nothing in the MLS record says why it sold at that price, and this site does not guess.
Ten years, side by side
Calendar years, the current year through September 21, 2026. The MLS property type field is reliably coded from 2009 forward, and a few sales each year are still untyped, so the series cannot run back to 2000 the way the housing index does. Attached counts are small in every year, and the dagger marks a figure resting on fewer than ten sales.
| Year | Detached sales | Detached median | Detached $/sq ft | Attached sales | Attached median | Attached $/sq ft | Attached share |
|---|---|---|---|---|---|---|---|
| 2016 | 173 | $789,000 | $250 | 7† | $320,000† | $193† | 4% |
| 2017 | 179 | $709,750 | $257 | 16 | $892,000 | $367† | 8% |
| 2018 | 172 | $741,638 | $254 | 14 | $909,500 | $256† | 7% |
| 2019 | 178 | $825,000 | $243 | 12 | $907,000 | $230† | 6% |
| 2020 | 192 | $750,000 | $243 | 12 | $817,450 | $239† | 6% |
| 2021 | 247 | $830,000 | $291 | 11 | $1,060,000 | $356† | 4% |
| 2022 | 211 | $950,000 | $308 | 16 | $1,065,649 | $402 | 7% |
| 2023 | 163 | $999,000 | $346 | 25 | $1,059,278 | $401 | 13% |
| 2024 | 151 | $1,185,000 | $386 | 24 | $977,500 | $412 | 13% |
| 2025 | 133 | $1,200,000 | $413 | 42 | $706,433 | $399 | 23% |
| 2026 (to Sept 21) | 96 | $1,300,000 | $427 | 21 | $835,000 | $403 | 18% |
† Fewer than ten sales behind the figure. Treat it as an observation, not a rate. Attached price per square foot rests on the sales with a living area on record, which was under ten in 2016 through 2021, so those cells carry the dagger even where the sale count does not. Attached share counts the untyped sales in the denominator.
Two things stand out. The detached median rose from $789,000 in 2016 to $1,300,000 so far in 2026, and the attached share of closings went from 4 percent of sales in 2016 to 23 percent in 2025, when The Hills at Warren was closing units. The attached median in 2021 through 2024 ran near or above $1,000,000 largely because the sales in those years were Villas at Warren, Fairview at Warren and Warren Crossing units. It fell to $706,433 in 2025 as smaller, lower priced units at The Hills came to dominate the count. The mix changed. That is the whole reason to read this table by community.
Where the townhouses are
Five communities account for 127 of the 132 attached sales in the past five years. Each has its own page with the record, the tax note and what is listed now.
| Community | Sales, five years | Median price | Median $/sq ft | Median living area | Association fee on resale listings |
|---|---|---|---|---|---|
| The Hills at Warren | 40 | $676,430 | $404 on 37 | 1,632 sq ft | $384 a month |
| Villas at Warren | 37 | $1,250,000 | $440 on 30 | 2,783 sq ft | $485 a month |
| Fairview at Warren | 32 | $864,995 | $353 on 22 | 2,558 sq ft | $287 a month |
| Four Seasons at the Promenade | 10 attached of 42, see note | $747,500 | see note | see note | $540 a month |
| Warren Crossing | 8† | $1,213,000† | $407† on 8 | 2,978† sq ft | $390 a month |
† Fewer than ten sales behind the figure. Treat it as an observation, not a rate. Four Seasons at the Promenade is an age restricted community that recorded 42 sales in five years, 32 of them typed single family on the MLS and only the 10 above typed attached. Those 10 mix condominium flats with units above $1,200,000, so the median describes neither, and the county carries one building level living area for all of them, so the size and per square foot cells carry no figure. The association fee is the median monthly figure carried on resale listings in each community, all years. It is the figure sellers report, not a bill this site has seen.
Price bands, who buys what
| Band, twelve months | All sales | Detached | Attached |
|---|---|---|---|
| Under $750,000 | 30 | 11 | 17 |
| $750,000 to $999,999 | 46 | 29 | 16 |
| $1,000,000 to $1,499,999 | 58 | 52 | 6 |
| $1,500,000 to $1,999,999 | 24 | 24 | 0 |
| $2,000,000 and up | 16 | 16 | 0 |
Under $1,000,000, attached homes are 43 percent of what closed. Above $1,500,000 every sale was a detached house. Warren by the Numbers uses the same bands but splits $1,000,000 to $1,499,999 at $1,250,000, combined here, and the homes for sale page groups today's listings the same way.
Taxes, the trap in the attached column
23 of the 39 attached sales carried a tax figure under $5,000 on the listing, and 23 of those were first sales of new units, most at The Hills at Warren, where the assessment on record was set before the house existed. That is why this page prints no median tax figure for attached homes. The 8 existing attached homes that sold in the window carried a median figure of $14,193† on 8 listings, and the 24 month figure for existing attached homes on the new construction page is $14,193 on 22. The detached median, $15,410, is a real bill. How new construction gets billed is on the tax rate page. † Fewer than ten sales behind the figure. Treat it as an observation, not a rate.
What this page cannot settle
- Whether a Warren townhouse is a better or worse buy than a Warren house. The two columns describe different products with different lots, ages and fees, and the median gap is mostly a size gap.
- How much of the price difference is location within the town. The attached communities sit where the zoning put them, and there is no way to hold that constant with this sample.
- Anything about the three sales the MLS left untyped in the window, or the years before 2009, when the type field was not reliably coded.
Method
Garden State MLS closed sales in Warren Township, Somerset County, deduplicated by MLS number, statuses sold and closed, superseded records removed. Detached is the MLS property type single family. Attached is the MLS type that covers condominiums, co-ops and townhouses. Medians are exact, not approximate. Days on market is the MLS field. Over ask compares the sale price with the final list price. Year built is the county record with the MLS figure as fallback. The window and the township totals matched the market page figure for figure when this page was built. The market page has since moved to the twelve months ending October 8, 2026. Full definitions on the data and methodology page.
- Garden State MLS closed sales for Warren Township, twelve months ending September 21, 2026, plus calendar years 2016 to 2026 and the five years ending the same day. Most recent closing September 17, 2026. Method on the data and methodology page. blog.johnmangini.com/warren-data-and-methodology/
- New Jersey MOD-IV parcel records for Warren Township, 2025 tax list, for living area, lot acreage and year built.
- Warren, Local., the neighborhoods hub and the five community pages linked above, for the community boundaries used here. blog.johnmangini.com/warren-neighborhoods/
Updated September 23, 2026, on the twelve months of closings ending September 21, 2026, the market page’s September window. This page refreshes with the monthly market update.
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Warren Township resident and full time broker, licensed in New Jersey since 2002. Warren, Local. is written from live Garden State MLS data, township records and primary sources. Every figure is traceable to a source listed above.