Zumper

OFFER:

Now offering up to 8 weeks FREE (move in by 7/31) or 6 weeks FREE (move in by 8/31)! Restrictions apply. 14+ month lease required.

modified
12 Hours Ago

Highlights

  • Rent Special
  • Pet Friendly

Location

43300 Mossimo Sq, Chantilly, VA 20152|South Riding
Hi! Let’s figure out if this property is right for you.

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Tour The William

Contact

Management

KETTLER

Our team has verified this company

Leasing office

(571) 674-4317

Open 

9:00 am–6:00 pm ET

Property Overview

The William offers a strong Zumper Expert Rating, reflecting its overall quality and appeal across key renter priorities. Residents can expect a balanced mix of advantages, including practical conveniences and attractive community or building amenities, along with notable features that enhance everyday comfort and lifestyle.

This summary uses Zumper’s proprietary data. “Zumper Expert Ratings,” “Things you’ll love,” and “Great for” are based on our internal analyses of market trends and renter insights.

Zumper Expert Rating

8.5
Very Good
With a solid 8.5 out of 10 overall, The William is a great option for renters. While some aspects, like Quality, might not be as distinguished as other properties nearby, The William has a number of attractive features—namely its Amenities— so you can be assured your rent will come with a high standard of living.

Things you’ll love

  • More space
  • High school nearby
  • Images Available

Great for

  • Pet owners
  • Work-from-home
  • Eco living

Floor plans

S9A1 bed1 bath659 sqft$2,124 /mo1 unit available
S6A1 bed1 bath644 sqft$2,132 /mo2 units available
S5A1 bed1 bath644 sqft$2,132 /mo1 unit available
S8A1 bed1 bath655 sqft$2,138–$2,227 /mo3 units available
S3A1 bed1 bath644 sqft$2,143 /mo1 unit available
S7A1 bed1 bath644 sqft$2,147 /mo1 unit available
S10A1 bed1 bath698 sqft$2,168–$2,292 /mo7 units available
A4A1 bed1 bath763 sqft$2,182–$2,307 /mo2 units available
A2A1 bed1 bath761 sqft$2,283–$2,373 /mo25 units available
A5A1 bed1 bath763 sqft$2,328–$2,388 /mo10 units available
A1A1 bed1 bath750 sqft$2,367 /mo6 units available
A6A1 bed1 bath793 sqft$2,417–$2,467 /mo2 units available
A7A1 bed1 bath979 sqft$2,694–$2,808 /mo4 units available
B4B2 bed2 bath1,015 sqft$3,007–$3,057 /mo2 units available
B2B2 bed2 bath1,002 sqft$3,032 /mo2 units available
B7B2 bed2 bath1,215 sqft$3,173–$3,248 /mo2 units available
B5B2 bed2 bath1,211 sqft$3,184 /mo4 units available
B6B2 bed2 bath1,215 sqft$3,198–$3,222 /mo2 units available
B8B2 bed2 bath1,375 sqft$3,433 /mo1 unit available
C2B3 bed2 bath1,462 sqft$3,952–$3,981 /mo7 units available
C1B3 bed2 bath1,450 sqft$3,995 /mo1 unit available
C3B3 bed2 bath1,462 sqft$4,071 /mo1 unit available

Let's explore this property.

Amenities for The William

Apartment Amenities

Chef-Inspired KitchensPrivate Patios and Balconies
Walk-in Closet

Appliances

Full Size Washer and DryerIn-Unit Laundry
Stainless Steel Energy-Efficient Appliances

Tech

High-Speed Internet

Building

Bike StorageBusiness Center
Cats OKClubhouse
Controlled AccessDogs OK
EV Car Charging StationsFitness Center
Residents Lounge

Grounds

Assigned ParkingBasketball Courts
Garage ParkingOutdoor Space
StorageSwimming Pool

Services

Package Service
Units, floor plans, amenities, dimensions, details, availability, and prices may be approximate and subject to change. Please contact a community representative for more information.

Policies and fees

Applicants

Applicants

One-time.

Contact Property

REQUIRED FEES

Deposit

One-time. Refund Policy: 100%. Security Deposit.

$500

OPTIONAL FEES

Parking Policy

Garage Parking

Dog Policy

Allowed
Limit2

Cat Policy

Allowed
Limit2

Cat

Cat Fee

One-time. 2 cats max. Refund Policy: Non-refundable.

$500

Cat Rent

Monthly. Refund Policy: Non-refundable.

$50

Dog

Dog Fee

One-time. 2 dogs max. Refund Policy: Non-refundable.

$500

Dog Rent

Monthly. Refund Policy: Non-refundable.

$50

Questions about this property’s policies and fees?

Building details

Property details

Units230
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About The William

HomeApartments in South RidingSouth Riding The William

Set within the heart of South Riding, VA, The William offers a peaceful retreat surrounded by nature and convenience. Residents enjoy a short walk to expansive trail systems, along with access to nearby pickleball and basketball courts for active outdoor living. With Route 50 and major commuter corridors just minutes away, The William connects you seamlessly to the best of Loudoun County and beyond.


Zumper Expert Rating

Our expert rating is based on a weighted average score of property attributes that renters care about most: price, amenities, location, quality, and trust.
8.5
/10
Very Good
With a solid 8.5 out of 10 overall, The William is a great option for renters. While some aspects, like Quality, might not be as distinguished as other properties nearby, The William has a number of attractive features—namely its Amenities— so you can be assured your rent will come with a high standard of living.
How we rated The William
Price·9A score that weighs the cost and location of the property, which we calculate by comparing rent prices of recent units to the median price of nearby rentals, adjusting for overall quality and features.
The William stands out with a remarkable rating of 9/10 for its cost per bedroom compared to other rentals in the area. Considering the excellent balance between price, convenience, and comfort that it provides, residents enjoy a high-quality living experience.
Amenities·10A score based on the amenities offered at this property compared to other rentals in the area. We consider the quantity, quality, and popularity of features both on site and within the units.
The William stands out as a premier property with an impressive array of amenities and an excellent standard of living. Residents here have access to many of the most popular and desired perks—pets allowed—making this one of the top choices for renters seeking unparalleled comfort and convenience.
Location·9A score based on proximity and ease of access to shops, restaurants, schools, and public transportation while considering the desirability of the area.
The William is exceptional when it comes to location and conveniences. Communication with management or leasing staff is usually quick and easy and they often use advanced scheduling and communication tools to streamline the process. The location of this property offers easy access to popular points of interest in the area and options for getting around.
Quality·6A score based on what makes the property stand out, such as luxury features, unique offerings, age of the building, and our ability to verify the accuracy of these details.
While The William does not have many hallmark characteristics to highlight, it has some qualities and features that will resonate with a broad range of renters.
Trustworthiness·8A score based on the accuracy, completeness, recency, and usefulness of the information provided by this property, so you can trust that what you see is what you get.
The level of transparency this property provides distinguishes it as a great rental. With a high attention to detail and desirable features, renters can be sure they will get an accurate picture of their potential new home.

The William is great for:

Pet owners

  • Outdoor spaces are available at this property
  • 1 pet grooming service nearby
  • 2 pet hospitals in the area
  • 2 pet supply stores near the property

Work-from-home

  • High speed internet is an amenity
  • Common areas for meetings or remote work
  • Quiet environment with little noise pollution
  • 1 office supply store within 1 mile

Eco living

  • LEED certified property
  • You can get around by foot in this area
  • Energy efficient appliances
  • Public transit available nearby

Property highlights

We compared every listing in the surrounding area to determine which amenities are most common. If a building lacks an amenity that most others in the area have, it is a con. If a building has an amenity most others in the area do not, it is a pro. Similarly, price, schools, and size are calculated relative to the size, price, and distance to schools of the other properties nearby.

How The William compares to other nearby properties.

Positives

More space
The 2-bedroom is 104 sqft larger than other listings nearby
High school nearby
There is a high school 1 mile away
Images Available
There are at least 10 photos of this address
Package service
More secure storage for delivery
Walk-in closet
More closet space on average

Considerations

No in-unit dishwasher
Dishwashers aren't available

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Rent trends in South Riding

1-bedroom apartments here are priced 4% higher than 1-bedrooms in South Riding.

If you decide to upgrade your space, you can expect 2-bedrooms at The William to be 0% less than the average for similarly sized apartments in South Riding.

3-bedroom apartments at The William cost about 25% more than the average rent price for 3-bedroom apartments in South Riding.

Median rents as of Jun 27 2026.
South Riding
South Riding
A table of 1-bedroom apartment rental data trends in South Riding
MonthMedian Rent
September 2025$1,095
October 2025$1,100
November 2025$1,100
December 2025$1,100
January 2026$1,100
June 2026$2,158
A table of 1-bedroom apartment rental data trends in South Riding
MonthMedian Rent
June 2026$2,158

Affordability calculator

Can I afford to live at 43300 Mossimo Sq?

Bedrooms

Rent-to-income ratio

30%

Slide to adjust the percentage of your monthly income you are willing to spend on rent.
The general rule of thumb is to spend around 30% or less of your income on rent.
Recommended income

$85,280/yr

With your selected rent-to-income ratio, you'd ideally want to make $85,280 annually to afford this 1-bedroom median monthly rent price of $2,132.
For more information on rent affordability, visit our rent calculator.

Schools near The William

Liberty Elementary School

25491 riding center dr

south riding, VA, 20152

PK, K-5Public
A

Goshen Post Elementary

24945 lobo dr

aldie, VA, 20105

PK, K-5Public
A

Hovatter Elementary School

41135 collaboration dr

aldie, VA, 20105

1-5Public

Madison's Trust Elementary School

42380 creighton rd

ashburn, VA, 20148

PK, K-5Public
A

Waxpool Elementary School

42560 black angus dr

ashburn, VA, 20148

PK, K-5Public
A
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Internet available near The William

Getting around Chantilly near 43300 Mossimo Sq

Walking

6/10
Some shops and stores are within a few minutes.

Driving

7/10
This area is close to freeways and has adequate parking options.

Cycling

5/10
More spots are within biking distance and some roads are cyclist-friendly.

Transit

3/10
There are a few mass transit options within the area.

Points of interest for 43300 Mossimo Sq, Chantilly

Groceries

9/10
Exceptional variety of groceries within a few minutes' walk

Shopping

5/10
Variety of shops within a short drive

Cafes

6/10
Wide variety of cafés within a short drive, including some within walking distance

Restaurants

7/10
Wide variety of restaurants within a short drive, including some within walking distance

Primary schools

5/10
At least one elementary school within a 20-minute walk

High schools

2/10
At least one high school within a 30-minute walk

Nightlife

2/10
Few or no bars within a short drive

Explore the area around 43300 Mossimo Sq

Giant Food
25050 Riding Plz
Food Lion
43090 Peacock Market Plz
Walmart Supercenter
24635 Dulles Landing Dr
Indian Mart
24630 Dulles Landing Dr
India Spice LLC
24650 Southpoint Dr

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