Market Insights  /  Rittenhouse
Development Watch · Rittenhouse

1813 Ranstead StDelivered

84-unit residential new construction, zoned CMX5.

Rendering of 1813 Ranstead St — Philadelphia General Contractor Embarks on First Major Development Project in Rittenhouse Square
Philadelphia General Contractor Embarks on First Major Development Project in Rittenhouse Square
Rendering of 1813 Ranstead St — Long Awaited Answers About a Ludlow Street Project
Long Awaited Answers About a Ludlow Street Project
Published renderings · via philadelphia.today. Shown for informational purposes; rights belong to the original creator.See the source →
Filed plan drawing for 1813 Ranstead St
From the project's plan drawings — schematic and subject to revision; not a marketing rendering.View the full plan set (PDF) →

A 12-story residential high-rise holding 84 units has delivered at 1813 Ranstead Street in Rittenhouse, making efficient use of a compact 4,601-square-foot lot. The Type I-B structure includes a basement and roof decks, with full sprinkler coverage and standpipe installation in the exit stairways. An amendment filed in April 2025 adjusted the building's occupied area, gross floor area, and fire separation distance while tweaking the southern-wall openings, with corresponding zoning approvals addressing changes to the structure's bulking and massing.

The CMX5 zoning on this slender Ranstead parcel allowed the project to rise by right, leveraging the district's generous height and density parameters to slot 84 homes into less than 5,000 square feet of ground. Pier 40 North Associates, the owner of record, picked up the property in 2023 and moved quickly to construction, clearing regulatory hurdles by late 2024 before wrapping the building in time for the spring 2025 tweaks that refined the envelope and fire-safety configuration.

The project joins a modest but steady wave of infill development in this stretch of Rittenhouse, most notably the 121-unit tower at 2012–14 Chestnut Street within a half-mile radius. Together, these two buildings account for more than 200 new units on previously underbuilt sites, a pattern that's likely to continue as shallow lots and older low-rise commercial structures come into play. Ranstead's auto-repair shops, surface parking, and one-story retail holdouts all sit in the same zoning district, and the math that worked at 1813 could work just as neatly a block over.

The quick turnaround from acquisition to delivery—roughly two years—suggests that smaller, by-right projects in established neighborhoods remain an attractive proposition even as construction costs and interest rates have crimped larger assemblages elsewhere in the city. With CMX5 covering much of the Rittenhouse grid, expect more developers to eye similar mid-block opportunities where land prices can still pencil against the revenue from eight or nine dozen apartments stacked a dozen floors high.

📄 View the project's plan drawings (PDF)
Schematic massing — illustrative of the ~12-story by-right envelope, not the developer's design.
Units
84
Zoning
CMX5
By-right envelope
~12 stories
Lot
4,601 sq ft
Last sale
2023
Cleared to build
Dec 6, 2024
For developers & investors

Underpriced parcels near this project

As this density arrives, InvestPHL is tracking 65 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.

~372buildable units
████████ Street
CMX5 · 0.23 mi away
Max bid to a builder $6.3M · Opportunity Score 98
Unlock →
~372buildable units
████████ Street
CMX5 · 0.37 mi away
Max bid to a builder $6.3M · Opportunity Score 98
Unlock →
~308buildable units
████████ Street
CMX5 · 0.32 mi away
Max bid to a builder $5.2M · Opportunity Score 97
Unlock →
~298buildable units
████████ Street
CMX5 · 0.17 mi away
Max bid to a builder $5.1M · Opportunity Score 97
Unlock →
~224buildable units
████████ Street
CMX5 · 0.16 mi away
Max bid to a builder $3.8M · Opportunity Score 95
Unlock →
Unlock the 65 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.

121u2012-14 Chestnut St0.19 mi
In the news

What we're hearing about this project

MMB Contractors is developing The Ranstead, an 84-unit, 12-story building at 1813 Ranstead Street that was under construction in November 2025 with completion slated for spring 2026.
The project at 1813 Ranstead Street (combined with parcels on Ludlow Street) was under construction as of February 2025, with aerial renderings created by USA Architects.
The 12-story, 50,380 square foot building will have 84 residential units, 28 parking spots, and 28 bicycle stalls, with a facade of black brick on the first floor and black and white fiber cement panels on upper levels.
News items are compiled automatically and may be approximate — verify before relying on them.
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.