Market Insights  /  Northern Liberties
Development Watch · Northern Liberties

1201-15 Callowhill StDelivered

65-unit residential new construction, zoned CMX3.

A 65-unit residential building is set to rise at 1201-15 Callowhill St in Northern Liberties, a mid-scale addition to one of the city's busier development corridors. It was cleared to build in Nov 5, 2021.

The 20,038 sq ft site is zoned CMX3, which supports a building on the order of 6 stories by right. Records show the parcel last traded in 2023 for $7.9M. The plans call for new construction of a six-story building with common roof deck for use as ground floor shell commercial space (use registration & fit-out permits required prior to occupancy) and accessory enclosed parking garage with sixty-five (65) dwelling units above as per approved plans. building to utilize horizontal separations to create two (2) separate buildings with two (2) different construction types (basement & 1st floor - type ia and 2nd through 6th floors - type iiib). fire retardant treated studs and sheathing required for type iii construction. building to be fully sprinklered per nfpa 13 and include standpipes per nfpa 14. fire watch required per code bulletin f-2001. *2018 ibc review* **separate permits required for mep & fire suppression work** amendment approved 7/23/23 amend new construction permit cp-2020-004357 for changes to construction type, structural system and building layouts to include increase to seventy-seven (77) dwelling units as per approved plans. amendment approved 11/11/23 amend new construction permit cp-2020-004357 for changes to building and parking layouts to include increase to one hundred forty-four (144) dwelling units as per approved plans. amendment approved 1/11/25 amend new construction permit cp-2020-004357 for changes to level p1 to include new rated fire pump switch room and changes to ev parking spaces as per approved plans. .

The owner of record is Llcp 1201 Callowhill LLC. The project's plan drawings are on file — worth a look for anyone underwriting the surrounding block.

It isn't rising in isolation. Within a half-mile, 7 other major projects have broken ground since 2022 — roughly 349 units of new supply — including the 31-unit project at 326 N 12th St, the 23-unit project at 1314-32 Spring Garden St, the 81-unit project at 225 N 13th St. That kind of concentration is exactly what pulls land values, and buyer attention, toward a block.

We'll update this page as the project progresses — leasing, retail tenants, renderings, and construction milestones as they surface. The relevant question for investors and agents: what are the surrounding parcels worth to a builder now that this is coming?

📄 View the project's plan drawings (PDF)
Schematic massing — illustrative of the ~6-story by-right envelope, not the developer's design.
Units
65
Zoning
CMX3
By-right envelope
~6 stories
Lot
20,038 sq ft
Last sale
$7.9M · 2023
Cleared to build
Nov 5, 2021
For developers & investors

Underpriced parcels near this project

As this density arrives, InvestPHL is tracking 168 under-built parcels within a half-mile that a developer could still acquire and build — each carrying a builder's max bid. Addresses and figures are members-only.

~114buildable units
████████ Street
CMX4 · 0.24 mi away
Max bid to a builder $8.0M · Opportunity Score 100
Unlock →
~98buildable units
████████ Street
CMX4 · 0.19 mi away
Max bid to a builder $6.7M · Opportunity Score 100
Unlock →
~77buildable units
████████ Street
ICMX · 0.37 mi away
Max bid to a builder $5.3M · Opportunity Score 100
Unlock →
~100buildable units
████████ Street
IRMX · 0.23 mi away
Max bid to a builder $7.0M · Opportunity Score 100
Unlock →
~110buildable units
████████ Street
CMX2.5 · 0.14 mi away
Max bid to a builder $7.6M · Opportunity Score 100
Unlock →
Unlock the 168 nearby opportunities →
The block

What else is rising nearby

Major (8+ unit) new-construction projects filed within a half-mile since 2022 — the density gathering around this site.

31u326 N 12th St0.06 mi
23u1314-32 Spring Garden St0.19 mi
81u225 N 13th St0.20 mi
51u217 N 9th St0.34 mi
119u619-29 N Broad St0.35 mi
24u1315 Ridge Ave0.35 mi
20u689-95 N Broad St0.47 mi
Progress

How this project is moving

Cleared for occupancy ~100% complete
Estimated from the construction permit sequence — an approximation of stage, not a precise schedule.
Every logged milestone appears here — highlighted ones are the headline stages; the rest track interim construction activity. Checked daily.
Compiled by InvestPHL. Unit counts, scope, and ownership are as recorded and subject to revision; the massing figure is a schematic illustration of the by-right envelope, not the developer's design or a marketing rendering. Verify zoning, status, and title with counsel before acting. InvestPHL does not list, market, or represent any property, buyer, or seller.