---
title: "400 Park Avenue South: Condo Review, Prices & Value Index Grade"
description: 400 Park Ave South earns a -B- on the Undivided Value Index. Singular architecture, deep amenities, non-warrantable structure. Know before you buy.
image: https://www.undividedre.com/hubfs/400%20Park%20Ave%20South%20Building%20Exterior%202.webp
---

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![400 Park Ave South Terrace](https://www.undividedre.com/hs-fs/hubfs/400%20Park%20Ave%20South%20Terrace-1.webp?width=1250&height=667&name=400%20Park%20Ave%20South%20Terrace-1.webp)

![400 Park Ave South Bedroom](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Bedroom.webp)

![400 Park Ave South Pool](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Pool.webp)

![400 Park Ave South Kitchen](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Kitchen.webp)

![400 Park Ave South at Sunset](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20at%20Sunset.webp)

![400 Park Ave South Terrace](https://www.undividedre.com/hs-fs/hubfs/400%20Park%20Ave%20South%20Terrace-1.webp?width=1250&height=667&name=400%20Park%20Ave%20South%20Terrace-1.webp)

![400 Park Ave South Bedroom](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Bedroom.webp)

![400 Park Ave South Pool](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Pool.webp)

![400 Park Ave South Kitchen](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Kitchen.webp)

![400 Park Ave South at Sunset](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20at%20Sunset.webp)

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Undivided Assessment · NoMad · Value Index: B (81/100)

# 400 Park Avenue South: A trophy address in NoMad for the right cash buyer

Overview

400 Park Avenue South is one of NoMad's most architecturally distinctive addresses: a 40-story crystalline tower by Pritzker Prize-winning architect Christian de Portzamparc that offers an amenity package and design quality rarely matched at this price tier, within a structure that demands careful due diligence before purchase.

- Low condo count: only 81 condo units within a larger mixed-use tower, providing a boutique ownership experience with full-service staffing.
- Upper-floor positioning: all condo residences occupy the higher floors, delivering materially better views, light, and separation from the rental portion below.
- Pritzker-pedigreed design: de Portzamparc's prismatic glass facade and angular interior geometry are singular in the Manhattan market. No comparable building exists at this address.
- NoMad core location: one block from Madison Square Park, direct subway access at grade, and walking distance to Flatiron, Gramercy, and Midtown South.

KEY BUILDING FACTS

Year Built

2014

Number of Units

81 condo units (350 incl. rentals)

Developer

Toll Brothers City Living

Architect

Christian de Portzamparc

Management Company

TBD

Front Desk Number

TBD

FINANCIAL SUMMARY

Monthly Common Charges / HOA

~ $1.50-$2.20 per sf (competitive for amenity depth)

Monthly Taxes

Varies by unit, confirm tax records before proceeding

Special Assessments

None publicly listed

Tax Abatement

None publicly listed

 Undivided's Assessment

400 Park Avenue South is a genuinely well-built building. Toll Brothers delivered on the construction side: finishes are top tier, the curtain wall facade performs as designed, and the LEED certification reflects real engineering attention rather than a marketing label. The amenity program is among the deepest in NoMad: indoor pool, jacuzzi, sauna, steam room, spin studio, yoga room, virtual golf, screening room, and landscaped terrace. Common charges are reasonable given what the building operates, in part because rental residents contribute through optional amenity access fees, which helps offset shared maintenance costs.

The investment case requires eyes-open underwriting on two fronts. First, this building is non-warrantable. Because the condo portion represents less than 50% of total units, conventional Fannie Mae and Freddie Mac financing is not available. The buyer pool at resale shrinks to cash buyers and borrowers with access to private or portfolio financing. Second, the building carries a Grade D energy efficiency rating (Score 42 per Local Law 33, as reported 2025). A Score of 42 is in the middle of the D band and is more typical of buildings in this class than One Madison's near-floor score, but it is worth noting alongside the LEED certification: the building was designed for energy performance, and the operational score suggests room for improvement in how the building is being managed day to day. Together, these two factors, non-warrantable structure and energy grade, are the primary reasons this building scores where it does. The design is irreplaceable. The exit market is constrained. Buyers who understand that dynamic and are purchasing for long-term use or lifestyle fit will find genuine value here.

Undivided Value Index™ Score

OVERALL SCORE:

[View our full methodology ›](https://www.undividedre.com/value-index)

400 Park Avenue South

 B (81/100)

Character Profile

A trophy asset for the right cash buyer. Singular architecture, deep amenities, LEED certified, and a non-warrantable structure that concentrates resale to a defined buyer profile.

SCORE BREAKDOWN BY CRITERION:

Location Power

20%

\[88/100\]

One block from Madison Square Park, direct subway access at grade (4/6 at 28th St), central NoMad position with strong walkability to Flatiron, Gramercy, and Midtown South.

Amenity ROI

15%

\[86/100\]

Among the deepest amenity packages in the submarket. Rental residents contribute via optional access fees, keeping condo common charges low relative to the offering.

Financial Fundamentals

20%

\[78/100\]

Common charges are reasonable for the amenity load. Non-warrantable status is a structural constraint, not a board management issue, but a deal-level variable buyers must plan for.

Build & Systems Quality

15%

\[87/100\]

Toll Brothers delivered top-tier finishes throughout. Curtain wall facade is a genuine engineering achievement. LEED certified with real thermal performance, not just a label.

Sustainability & Wellness

10%

\[68/100\]

Grade D, Score 42 per NYC Local Law 33 (as reported 2025). A Score of 42 is mid-band within the D range and more typical of buildings of this type and vintage than a near-floor result. The LEED certification reflects genuine design intent and partially mitigates the operational score. Full wellness amenity suite (pool, sauna, steam, yoga, spin). Verify current grade at a810-dobnow.nyc.gov.

Appreciation Upside

10%

\[68/100\]

Appreciation has normalized relative to NoMad peers. Non-warrantable structure suppresses resale demand and compresses pricing power at exit. Not a growth-forward play.

Rental & Exit Liquidity

5%

\[62/100\]

Exit pool is limited to cash buyers and portfolio-financed buyers. A few lenders will lend here but terms are tougher. Buyers must model resale, assuming a constrained buyer universe.

Lifestyle Fit

5%

\[91/100\]

Primary residence or pied-a-terre play for buyers who value architecture, views, and amenity depth. Not suitable for buyers relying on conventional financing at purchase or resale.

View Value Breakdown

 What Makes This Building Worth Owning

 Construction Quality

- Toll Brothers City Living executed at a high level: floor to ceiling windows, white oak floors, Pedini glass-faced cabinetry, quartzite countertops, and Miele appliances are standard across the condo residences.
- The unitized curtain wall facade uses clear glass with ceramic frit patterning that provides both thermal performance and privacy where needed, while the low-E coating delivers measurable energy efficiency year-round.

Layout Advantage

- All 81 condo units occupy the upper floors of the tower, delivering materially better views, light, and separation from the rental component below.
- The prismatic geometry produces irregular but distinctive room shapes: floor to ceiling windows and panoramic skyline exposure offset the occasional reduction in rectilinear efficiency. Buyers should review individual floor plans.

 Design Integrity

- Christian de Portzamparc's crystalline tower is the only one of its kind at this location: the angular facade, prism-shaped massing, and interior design language are consistent from the building exterior down to the bathroom tile details.
- LEED certification reflects real construction decisions, not a late-stage add-on. The building was designed from the ground up for energy performance.

 Investment Case

- Common charges are lower than one might expect for this amenity load, in part because rental residents pay optionally to access the shared amenity suite: a structural benefit for condo owners that is often overlooked.
- Buyers should underwrite this as a long-term hold or lifestyle asset, not a near-term flip. Appreciation has normalized and the non-warrantable structure concentrates resale to a defined pool of cash and portfolio-financed buyers.

Amenity Depth

- The amenity program includes an indoor pool with jacuzzi, sauna, steam room, spin studio, yoga room, virtual golf simulator, children's playroom, screening room, roof deck with landscaped terrace, bike room, and 24-hour concierge and doorman staffing.
- For a building of 81 condo units, this level of amenity programming is exceptional, and the shared cost structure with the rental population makes it unusually cost-efficient for condo owners.

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Inside This Building

Photos

![400 Park Ave South Pool](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Pool.webp)

![400 Park Ave South Kitchen](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Kitchen.webp)

![400 Park Ave South Bedroom](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Bedroom.webp)

![400 Park Ave South Bedroom](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Bedroom.webp)

![400 Park Ave South Gym](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Gym.webp)

![400 Park Ave South at Sunset](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20at%20Sunset.webp)

×

![400 Park Ave South Pool](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Pool.webp)

![400 Park Ave South Kitchen](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Kitchen.webp)

![400 Park Ave South Bedroom](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Bedroom.webp)

![400 Park Ave South Bedroom](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Bedroom.webp)

![400 Park Ave South Gym](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Gym.webp)

![400 Park Ave South at Sunset](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20at%20Sunset.webp)

←

→

![400 Park Ave South Pool](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Pool.webp)

![400 Park Ave South Kitchen](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Kitchen.webp)

![400 Park Ave South Bedroom](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Bedroom.webp)

![400 Park Ave South Bedroom](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Bedroom.webp)

![400 Park Ave South Gym](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20Gym.webp)

![400 Park Ave South at Sunset](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/400%20Park%20Ave%20South%20at%20Sunset.webp)

Video

Current listings in this building 

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View all residences currently on the market in this building, and updated in real time.

[View Current Listings](https://www.undividedre.com/embed-olr-1?hs_preview=JzPFfipJ-210361784724)

Neighborhood Map

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<iframe src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d3011.6375715239537!2d-73.97718783721282!3d40.75997460497194!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x89c258fc5a787da3%3A0x866c5a993ca36493!2s400%20Park%20Ave%2C%20New%20York%2C%20NY%2010022!5e0!3m2!1sen!2sus!4v1774443983805!5m2!1sen!2sus" title="Neighborhood Map" loading="lazy" referrerpolicy="no-referrer-when-downgrade" allowfullscreen></iframe>

NoMad's position: bounded by Madison Square Park to the south and 30th Street to the north, gives it access to the full midtown commercial corridor while retaining the residential scale and street-level quality of the Flatiron District below it. The 28th Street subway station at grade directly below the building provides immediate 4 and 6 train service, and the N/R/W trains are one block west on Broadway. For buyers evaluating long-term liquidity, this transit infrastructure is a durable asset that holds value across market cycles.

[Explore \[Neighborhood Name\] in Depth +](https://www.undividedre.com/#)

Grade: B

400 Park Avenue South, New York, NY 10016

Average Price Range

$1,200,000 - $14,500,000

Bedrooms

Studio-5

Square Footage

664 - 4,020 sf

Bathrooms

1-5.5

Year Built

2014

Property Type

Condo (non-warrentable)

[Schedule a Private Showing](https://www.undividedre.com/schedule-an-appointment)

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Buildings

 404 Park Avenue South , NoMad | Undivided Value Index

<https://www.undividedre.com/blog/241-fifth-avenue-a-sculptural-oda-tower-one-block-from-madison-square-park>

![241 Fifth Avenue, NoMad | Undivided Value Index](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/241%20Fifth%20Ave%20building%20exterior-1.png)

Buildings

 241 Fifth Avenue, NoMad | Undivided Value Index

 Available residences at 400 Park Avenue South

 Schedule a consultation for Undivided's full analysis of any residence, including off-market opportunities. 

[Ready to evaluate this building?](https://www.undividedre.com/schedule-an-appointment)

![Background](https://44624939.fs1.hubspotusercontent-na1.net/hubfs/44624939/raw_assets/public/undivided-theme-by-tam/images/modules/footer/background.jpg)

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Contact Us

136 Madison Ave, 6th Fl  
New York, NY 10016

 

hello@undividedre.com

+1.646.631.2220

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EQUAL OPPORTUNITY HOUSING. NO GUARANTEE, WARRANTY OR REPRESENTATION OF ANY KIND IS MADE REGARDING THE COMPLETENESS OR ACCURACY OF DESCRIPTIONS OR MEASUREMENT (INCLUDING SQUARE FOOTAGE MEASUREMENTS AND PROPERTY CONDITION), SUCH SHOULD BE INDEPENDENTLY VERIFIED, AND UNDIVIDED EXPRESSLY DISCLAIMS ANY LIABILITY IN CONNECTION THEREWITH. NO FINANCIAL OR LEGAL ADVICE PROVIDED. THIS INFORMATION IS NOT VERIFIED FOR AUTHENTICITY OR ACCURACY AND IS NOT GUARANTEED AND MAY NOT REFLECT ALL REAL ESTATE ACTIVITY IN THE MARKET. UNDIVIDED IS COMMITTED TO DIGITAL ACCESSIBILITY. IF YOU EXPERIENCE ANY DIFFICULTY USING THE SITE, PLEASE CONTACT ACCESS@UNDIVIDEDRE.COM. COPYRIGHT ©2026 RLS DATA BY UNDIVIDED INC. ALL RIGHTS RESERVED.

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```

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