---
title: "15 West 53rd Street #27E, New York City, NY 10019"
description: "15 West 53rd Street #27E, New York City, NY 10019 — Midtown, New York City, NY. Last Sold Price $1,360,000. Sold on 8/27/2026. 1 bed, 2 bath, 1,187 sqft"
url: "https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-e-27E-ny-10019"
source: "Real Estate Rebate Team"
dateModified: "2026-08-29T20:18:10.399Z"
status: "Closed"
---

# 15 West 53rd Street #27E, New York City, NY 10019

Midtown, New York City, NY

Courtesy of Brown Harris Stevens Residential Sales LLC

Last updated: August 29, 2026, 4:18 PM

## At a Glance

- **Last Sold Price**: $1,360,000
- **Status**: Sold on 8/27/2026
- **Beds**: 1
- **Total Baths**: 2
- **Sqft**: 1,187
- **Common Charges**: $1,820 / mo
- **Price per Sqft**: $1,146
- **Brokerage Fee**: Share Eligible

This listing was successfully closed and is no longer active on the market.

[Planning to sell? Contact Régis Roumila](https://realestaterebatesnewyork.com/contact)

## Photos (10)

![15 West 53rd Street #27E, New York City, NY 10019 — photo 1 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/19329049-28e6-4afa-8330-de9832729012.jpg)
![15 West 53rd Street #27E, New York City, NY 10019 — photo 2 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/82768431-bbd0-4d01-b9c9-77b97bf5f947.jpg)
![15 West 53rd Street #27E, New York City, NY 10019 — photo 3 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/a375f1e0-c9d4-4318-9454-06811153c30b.jpg)
![15 West 53rd Street #27E, New York City, NY 10019 — photo 4 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/13c248c9-8fce-404e-a59e-4a34ee87721b.jpg)
![15 West 53rd Street #27E, New York City, NY 10019 — photo 5 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/9998617b-8108-45df-af19-09a7f1c462c2.jpg)
![15 West 53rd Street #27E, New York City, NY 10019 — photo 6 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/750f3485-4a0c-4127-900a-2feb02573535.jpg)
![15 West 53rd Street #27E, New York City, NY 10019 — photo 7 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/762e452b-70d4-494e-ae62-48a17ef2600d.jpg)
![15 West 53rd Street #27E, New York City, NY 10019 — photo 8 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/24c1a301-3a55-4e0c-b356-7215b175e2ce.jpg)
![15 West 53rd Street #27E, New York City, NY 10019 — photo 9 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/44744b4f-81c5-48ce-83fc-31be7642fed6.jpg)
![15 West 53rd Street #27E, New York City, NY 10019 — photo 10 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/ddc98521-fa8a-49f0-854b-de4604761b46.jpg)

## Property Overview

With a fabulous, renovated kitchen and other attractive upgrades throughout, this sparkling home boasts 1,187 square feet and 1-1/2 travertine marble baths! Located in the world-renowned Museum Tower Condominium, this apartment features two exposures, 9-foot ceiling heights and an over-abundance of closet space.

 The incomparable building offers 24-hour front door and concierge attendants, as well as elevator starters. A spacious, well-appointed fitness center and sauna (nominal fee), roof terrace overlooking the MOMA Sculpture Garden, media/conference rooms, business center, wine-tasting room and complimentary storage are all on the premises! Laundry, valet and housekeeping services are also available. This award-winning tower is adjacent to the Museum of Modern Art and close to Central Park, Carnegie Hall, Rockefeller Center and the elegant shops on Fifth and Madison Avenues. 24-hour notice required to schedule an appointment. 2% Capital Contribution fee is paid by Purchaser.

## Property Details

- **Property Type**: Condominium
- **Beds**: 1
- **Total Baths**: 2
- **Rooms**: 3
- **Sqft**: 1,187 sqft
- **Stories**: 52
- **Year Built**: 1985
- **Price per Sqft**: $1,146
- **Common Charges**: $1,820 / Monthly
- **Listed On**: Apr 24, 2025
- **Days on Market**: 507 Days

### Residence Features

- Building Other
- Building Roof Deck
- Storage
- City
- Park/Greenbelt

### Building Amenities

- Sauna

## Sales Evidence

### Recent closed sales

65 apartments at Museum Tower have recorded sales since September 2021, the most recent for $1,360,000 in August 2026. Prices are the figures recorded with the City, not asking prices.

| Unit | Beds | Sq Ft | Sold Price | $/ft² | Sold | Source |
| --- | --- | --- | --- | --- | --- | --- |
| 27E (Apartment) | 1 | 1,187 | $1,360,000 | $1,146/ft² | August 27, 2026 | MLS |
| [34B](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-b-34B-ny-10019) (Apartment) | 2 | 1,917 | $2,550,000 | $1,330/ft² | August 26, 2026 | MLS |
| [40E](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-e-40E-ny-10019) (Apartment) | 1 | 1,187 | $1,450,000 | $1,222/ft² | July 31, 2026 | MLS |
| 46AF (Apartment) | 3 | 3,452 | $4,700,000 | $1,362/ft² | June 17, 2026 | MLS |
| 12C (Apartment) | 3 | 2,202 | $2,400,000 | $1,090/ft² | May 14, 2026 | City record · MLS |
| 29A/29F/30A (Apartment) | — | 5,700 | $7,200,000 | $1,263/ft² | March 24, 2026 | City record |
| 43F (Apartment) | 1 | 1,204 | $1,500,000 | $1,246/ft² | March 10, 2026 | City record · MLS |
| 14-G (Apartment) | 1 | 1,427 | $2,150,000 | $1,507/ft² | March 6, 2026 | City record · MLS |
| 50D (Apartment) | 2 | 1,917 | $3,200,000 | $1,669/ft² | January 30, 2026 | City record |
| 10G (Apartment) | 1 | 1,427 | $2,195,200 | $1,538/ft² | December 10, 2025 | City record · MLS |
| 37AF (Apartment) | 4 | 3,452 | $3,175,000 | $920/ft² | December 9, 2025 | MLS |
| 17E (Apartment) | — | 1,167 | $500,000 | $428/ft² | December 4, 2025 | City record |
| 12H (Apartment) | 1 | 750 | $950,000 | $1,267/ft² | November 13, 2025 | City record · MLS |
| 9G (Apartment) | 1 | 1,210 | $1,525,000 | $1,260/ft² | October 21, 2025 | City record · MLS |
| 26D (Apartment) | 2 | 1,917 | $2,430,000 | $1,268/ft² | September 12, 2025 | City record · MLS |
| 13J (Apartment) | 1 | 1,229 | $1,775,000 | $1,444/ft² | June 5, 2025 | City record · MLS |
| 40C (Apartment) | 1 | 973 | $1,245,000 | $1,280/ft² | May 27, 2025 | City record · MLS |
| 33A (Apartment) | 2 | 2,248 | $2,500,000 | $1,112/ft² | April 28, 2025 | City record · MLS |
| 31C (Apartment) | 1 | 973 | $1,071,000 | $1,101/ft² | March 27, 2025 | City record · MLS |
| 15B (Apartment) | 2 | 1,917 | $2,150,000 | $1,122/ft² | February 24, 2025 | City record · MLS |
| 42C (Apartment) | 1 | 973 | $1,100,000 | $1,131/ft² | February 13, 2025 | City record · MLS |
| 14E (Apartment) | 1 | 1,167 | $999,000 | $856/ft² | January 30, 2025 | City record · MLS |
| 34E (Apartment) | 1 | 1,187 | $1,350,000 | $1,137/ft² | January 16, 2025 | City record · MLS |
| 37E (Apartment) | 1 | 1,187 | $1,550,000 | $1,306/ft² | December 12, 2024 | City record · MLS |
| 31D (Apartment) | 2 | 1,917 | $2,485,000 | $1,296/ft² | October 30, 2024 | City record · MLS |
| 25-A (Apartment) | 3 | 2,248 | $2,400,000 | $1,068/ft² | October 21, 2024 | City record · MLS |
| 18H (Apartment) | 1 | 743 | $1,225,000 | $1,649/ft² | September 24, 2024 | City record · MLS |
| 33C (Apartment) | 1 | 973 | $1,650,000 | $1,696/ft² | September 13, 2024 | City record · MLS |
| 26E (Apartment) | 1 | 1,187 | $1,325,000 | $1,116/ft² | August 16, 2024 | City record · MLS |
| 21F (Apartment) | 1 | 1,204 | $1,375,000 | $1,142/ft² | July 10, 2024 | City record · MLS |
| 16K (Apartment) | 1 | 640 | $860,000 | $1,344/ft² | June 11, 2024 | City record · MLS |
| 47E (Apartment) | 2 | 2,400 | $2,600,000 | $1,083/ft² | June 4, 2024 | City record · MLS |
| 49BC (Apartment) | 3 | 2,890 | $4,040,000 | $1,398/ft² | May 3, 2024 | MLS |
| 14G (Apartment) | 1 | 1,427 | $2,200,000 | $1,542/ft² | March 12, 2024 | City record |
| 15E (Apartment) | 1 | 1,200 | $1,050,000 | $875/ft² | February 26, 2024 | City record · MLS |
| 31B (Apartment) | 2 | 1,917 | $2,725,000 | $1,421/ft² | February 20, 2024 | City record · MLS |
| 42B (Apartment) | 2 | 1,917 | $2,934,250 | $1,531/ft² | February 6, 2024 | City record · MLS |
| 14BC (Apartment) | 4 | 2,930 | $4,175,000 | $1,425/ft² | January 11, 2024 | City record · MLS |
| 22D (Apartment) | 2 | 1,917 | $2,500,000 | $1,304/ft² | October 27, 2023 | City record · MLS |
| 22C (Apartment) | 1 | 973 | $1,080,000 | $1,110/ft² | October 10, 2023 | City record · MLS |

Showing the 40 most recent of 65 recorded sales in this period.

Every row is a recorded transaction, including ancillary spaces such as storage and staff rooms where they were sold separately. Those are excluded from the benchmark below.

### How this price compares

The median closed price for comparable one-bedroom sales at Museum Tower is $1,375,000, based on 27 sales between March 2022 and March 2026. This home is asking $1,360,000, $15,000 below that median. The middle half of those sales closed between $1,085,000 and $1,537,500.

- **Median closed price**: $1,375,000
- **Middle half**: $1,085,000 – $1,537,500
- **Based on**: 27 one-bedroom sales at Museum Tower
- **Period**: March 2022 – March 2026
- **Median $/ft²**: $1,246/ft²

Across the 25 of these sales with a published asking price, the median closed at 90.7% of what it originally asked. 92% of them closed below the original ask.

### How these sales were negotiated

- **Sold vs original ask**: 90.7% of the original ask
- **Closed below ask**: 92% of 25 sales
- **Listed → in contract**: 127 days (about 18 weeks)
- **In contract → closed**: 67 days (about 10 weeks)

Across the 25 of these sales with a published asking price, the median closed at 90.7% of what it originally asked. 92% of them closed below the original ask.

Half of these homes were in contract within 127 days (about 18 weeks) of coming to market, based on the 23 with a recorded listing date.

Once a deal was agreed, closing took a further 67 days (about 10 weeks), based on the 23 with both dates recorded.

These are two separate periods measured on different clocks — time to find a buyer, and time from agreed deal to closing. They are medians of different sets of sales and do not add together into a single "days on market" figure.

Based on 27 one-bedroom sales at Museum Tower, March 2022 – March 2026. Each figure counts only the sales that recorded the dates it needs, which is why the denominators differ.

### Price trend

Median price per square foot for sales at Museum Tower, 2017 to 2026. Price per square foot is used rather than sale price so the line follows the market rather than whichever apartments happened to change hands that year.

| Year | Median $/ft² | Sales |
| --- | --- | --- |
| 2017 | $1,565/ft² | 11 |
| 2018 | $1,363/ft² | 11 |
| 2019 | $1,356/ft² | 5 |
| 2020 | $1,287/ft² | 9 |
| 2021 | $1,461/ft² | 8 |
| 2022 | $1,375/ft² | 10 |
| 2023 | $1,204/ft² | 11 |
| 2024 | $1,325/ft² | 14 |
| 2025 | $1,199/ft² | 12 |
| 2026 | $1,263/ft² | 5 |

Sale prices are the consideration recorded with the City in ACRIS, and each sale is dated by the day the City recorded it. A closing date reported to the MLS typically falls one to two weeks earlier. Recorded sales describe what has already happened and are not an appraisal, a valuation, or an estimate of what this home will sell for.

[See every recorded sale at Museum Tower](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/museum-tower)

## Price and Property History for 15 West 53RD Street, Unit 27E

Review the recorded listing activity for 15 West 53RD Street, Unit 27E, including asking-price changes and prior market dates.

- **Latest price change**: Reduced by $35,000, or 2.5%, on August 29, 2026
- **Originally listed**: April 24, 2025 at $1,600,000
- **Last sold**: $1,360,000 on August 27, 2026

| Date | Price | Listing event |
| --- | --- | --- |
| August 29, 2026 | $1,360,000 | Asking price reduced by $35,000, or 2.5% |
| August 27, 2026 | $1,360,000 | Sold |
| June 30, 2026 | $1,395,000 | Entered contract |
| June 1, 2026 | $1,395,000 | Returned to the market |
| May 27, 2026 | $1,395,000 | Asking price reduced by $55,000, or 3.8% |
| April 24, 2025 | $1,600,000 | Listed for sale by Brown Harris Stevens Residential Sales LLC |
| October 15, 2015 | — | Sold |
| June 30, 2015 | $1,950,000 | Listed for sale by Brown Harris Stevens Residential Sales LLC |

## Property Tax History

Taxes at 15 West 53rd Street #27E were $0 in 2026.

| Year | Tax Assessment | Land | Additions | Billable Value | Property Tax | Tax Rate |
| --- | --- | --- | --- | --- | --- | --- |
| 2026 (FY 2026/27) | $190,757 | $47,872 | $142,885 | $190,757 | $0 | 12.5% (estimated) |
| 2025 (FY 2025/26) | $214,381 | $47,872 | $166,509 | $214,381 | $0 | 12.5% (estimated) |
| 2024 (FY 2024/25) | $201,646 | $47,872 | $153,774 | $201,646 | $0 | 12.5% |
| 2023 (FY 2023/24) | $196,838 | $47,872 | $148,966 | $196,838 | $0 | 12.502% |
| 2022 (FY 2022/23) | $170,443 | $47,872 | $122,571 | $170,443 | $0 | 12.267% |
| 2021 (FY 2021/22) | $167,808 | $47,872 | $119,936 | $167,808 | $0 | 12.235% |
| 2020 (FY 2020/21) | $187,057 | $47,872 | $139,185 | $187,057 | $0 | 12.267% |
| 2019 (FY 2019/20) | $194,944 | $47,872 | $147,072 | $168,175 | $0 | 12.473% |
| 2018 (FY 2018/19) | $179,886 | $47,872 | $132,014 | $159,781 | $0 | 12.612% |
| 2017 (FY 2017/18) | $174,935 | $47,872 | $127,063 | $154,803 | $0 | 12.719% |
| 2016 (FY 2016/17) | $174,892 | $47,872 | $127,020 | $150,556 | $0 | 12.892% |
| 2015 (FY 2015/16) | $173,183 | $47,872 | $125,311 | $144,613 | $0 | 12.883% |
| 2014 (FY 2014/15) | $147,010 | $47,872 | $99,138 | $133,332 | $0 | 12.855% |
| 2013 (FY 2013/14) | $143,963 | $47,872 | $96,091 | $127,287 | $0 | 13.145% |
| 2012 (FY 2012/13) | $139,606 | $47,872 | $91,734 | $122,679 | $0 | 13.181% |
| 2011 (FY 2011/12) | $147,294 | $47,871 | $99,423 | $122,971 | $0 | 13.433% |
| 2010 (FY 2010/11) | $121,349 | $47,872 | $73,477 | $119,696 | $0 | 13.353% |

The City has not published the official FY2026/27 and FY2025/26 tax rates yet. We calculated the tax for those years using the prior year’s rate, so treat them as an estimate rather than a figure the City has adopted. Every rate without the Estimated marker is the published one.

Tax Assessment is the assessed value on the City’s roll, and it is the figure other listing sites publish. It is not what the bill is calculated on. New York phases assessment changes in gradually for some tax classes, so the City bills the Billable Value shown beside it, less any exemption the owner holds. It usually trails the assessment, and it can sit above it for a few years after an assessment falls.

Figures are the New York City Department of Finance assessment roll for tax lot 1012691132. Assessed and billable values are determined by the City for tax purposes and are not an appraisal or an estimate of market value. Tax classes and rates are set annually and can change.

[How we source and calculate NYC property tax data](https://realestaterebatesnewyork.com/nyc-property-tax-data-methodology)

## About The Building

### Museum Tower

Midtown West · Condominium

15 West 53rd Street, New York, NY 10019

A building in Midtown West, currently featuring 12 active listings.

- **Year Built**: 1985
- **Total Units**: 12
- **Floors**: 52

[View the building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/museum-tower)

### Available Residences — For Sale (12)

| Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [27E](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-e-27E-ny-10019) | 1 | 2 | 1,187 sqft | $1,146 | $1,360,000 (-2.5%) | Brown Harris Stevens Residential Sales LLC | Apr 24, 2025 | 506 days |
| [PH](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-ph-PH-ny-10019) | 7 | 12 | 14,000 sqft | $1,643 | $23,000,000 | Douglas Elliman Real Estate | Sep 19, 2025 | 358 days |
| [18F](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-18f-ny-10019) | 1 | 2 | 1,204 sqft | $1,408 | $1,695,000 | Douglas Elliman Real Estate | Feb 17, 2026 | 207 days |
| [11H](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-h-11H-ny-10019) | 1 | 1 | 743 sqft | $1,413 | $1,050,000 (-4.5%) — In contract | Compass | Mar 24, 2026 | 172 days |
| [PHBC](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-phbc-PHBC-ny-10019) | 3 | 4 | 9,298 sqft | $1,504 | $13,988,376 | Douglas Elliman Real Estate | Apr 9, 2026 | 156 days |
| [PHA](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-pha-PHA-ny-10019) | 3 | 6 | 4,970 sqft | $1,813 | $9,011,640 | Douglas Elliman Real Estate | Apr 9, 2026 | 156 days |
| [34B](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-b-34B-ny-10019) | 2 | 3 | 1,917 sqft | $1,330 | $2,550,000 (-3.8%) | Douglas Elliman Real Estate | Apr 15, 2026 | 150 days |
| [29AF/30A](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-af30a-29AF30A-ny-10019) | 3 | 5 | 5,700 sqft | $1,465 | $8,350,000 — In contract | Corcoran Group | May 17, 2026 | 118 days |
| [40E](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-e-40E-ny-10019) | 1 | 2 | 1,187 sqft | $1,264 | $1,500,000 | Leven Real Estate | Oct 21, 2025 | 326 days |
| [24F](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-f-24F-ny-10019) | 1 | 2 | — | — | $1,995,000 | Sothebys International Realty | Jun 5, 2026 | 99 days |
| [29BC](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-bc-29BC-ny-10019) | 4 | 5 | 2,930 sqft | $1,792 | $5,250,000 — In contract | Coldwell Banker Warburg | Jun 29, 2026 | 75 days |
| [15E](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10019/15-west-53rd-street-e-15E-ny-10019) | 1 | 2 | 1,200 sqft | $1,196 | $1,435,000 | Sothebys International Realty | Jul 14, 2026 | 60 days |

## Estimated Monthly Payment

**$8,697 / month**, assuming a 20% down payment ($272,000), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three.

- **Principal & Interest**: $6,877
- **Common Charges**: $1,820

Estimates only. Actual payments may vary. Confirm terms with your lender.

## Midtown

The Center of the World

[Explore Midtown](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/midtown) · [All Neighborhoods](https://realestaterebatesnewyork.com/neighborhoods)

### Nearby Midtown

- [Murray Hill real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/murray-hill)
- [Theater District real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/theater-district)
- [Kips Bay real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/kips-bay)
- [Hells Kitchen real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/hells-kitchen)
- [Flatiron District real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/flatiron-district)
- [Chelsea real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/chelsea)

## Related Links

- [Museum Tower — building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/museum-tower)
- [Midtown neighborhood guide](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/midtown)
- [Estimate your Buyer Commission Share and closing costs](https://realestaterebatesnewyork.com/calculators/buyer-closing-cost-calculator)
- [Contact Régis Roumila](https://realestaterebatesnewyork.com/contact)

---

> RLS IDX Data display by Real Estate Rebate Team. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., All rights reserved. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

> All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and the number of bedrooms listed is for informational purposes and is not a legal conclusion. Please consult with your own architect or engineer for exact dimensions and legal specifications.