Masongrove Townhomes in Chatsworth, CA (10201 Mason Avenue)

Written by Antonio Vaziri, Realtor, Epique Realty, DRE #01927866 · Last updated October 2026

One street address, 140 homes. Every townhome at Masongrove shares the same number, 10201 Mason Avenue, and is told apart only by its unit number. The community sits on Mason Avenue between Devonshire Street and Lassen Street in Chatsworth, on a single 7.6-acre parcel, and every unit was built in 1980. I have been part of four sales here since 2014, the most recent in June 2025, so this guide mixes the public record with what I have seen in those escrows.

Listings and appraisals sometimes write the name as "Mason Grove." The association's own website uses "Masongrove Homeowners Association," which is the spelling this page follows.

Masongrove by the numbers

Association

Masongrove Homeowners Association (masongrovehoa.com)

Address

10201 Mason Avenue, Chatsworth, CA 91311 (all units)

Homes

140 condominium townhomes on Tract 31903

Year built

1980 for every unit (LA County Assessor)

Bedrooms

102 two-bedroom and 38 three-bedroom homes

Garage

Attached two-car garage on the sale records reviewed

Shared amenities

Two pools, spa, sauna and a recreation room with kitchen and billiards, as described in listing records

Management

Valencia Management Group, Valencia, per the association website (checked October 4, 2026)

Monthly dues

About $715 on 2026 listings (see the dues history below)

The four floor plans, measured in square feet

The Los Angeles County Assessor lists every one of the 140 units with its living area and bedroom count. Only four sizes appear, which makes Masongrove unusually easy to compare unit against unit.

Source: LA County Assessor parcel records for 10201 Mason Avenue, checked October 4, 2026. Bathroom counts vary by unit because some owners have remodeled; the MLS also shows one three-bedroom record at 1,718 square feet.

The layouts are multi-level. Some sale records list two levels and others list three or more, so walk the specific unit before you assume a floor plan. When I listed a two-bedroom here in 2016, it had two primary suites, which is a common reason buyers ask about these plans.

How the monthly dues have climbed since 2014

That is close to a doubling in twelve years, and about a 13 percent step between the 2025 and 2026 records. On the 2025 and 2026 records, listing agents named items such as water, sewer, trash, cable TV, grounds care and earthquake insurance as covered; not every record lists the same items.

What 14 closings since January 2024 show

CRMLS Matrix, every closed sale recorded at 10201 Mason Avenue from January 1, 2024 through October 4, 2026, pulled October 4, 2026. Unit numbers are left off on purpose.

Two patterns stand out. The 1,711 square foot three-bedroom plan has held a narrow band, $685,000 to $720,000, across four sales in 2024 and 2025. The two-bedroom homes have drifted the other way: from $619,000 to $669,000 in 2024 down to $590,000 to $607,000 in 2026. The lowest result, $530,000 for a 1,623 square foot three-bedroom in September 2026, came after 118 days and a first asking price of $649,000; the record does not say why, which is a reminder that condition and timing can outweigh square footage.

The longer view, year by year

Medians mix two- and three-bedroom sales, so a year with more three-bedroom closings reads higher. The 2025 median reflects three of five sales being three-bedroom homes.

On the market right now

On October 4, 2026, one Masongrove home was active in the MLS: a 1,534 square foot two-bedroom asking $599,000, listed for 157 days. Nothing was in escrow and no unit was offered for lease. With 140 homes and roughly five sales a year since 2023, a buyer who wants a specific plan may need to wait.

Both buttons search only the Masongrove parcel on the map. To hear about the next one, open either search and press "Save Search."

Leasing a Masongrove townhome

Five Masongrove leases closed in the MLS between August 2025 and July 2026, at $3,000, $3,150, $3,500, $3,500 and $3,500 a month. The three-bedroom in that group, a 1,623 square foot plan, leased at $3,500, the same as two of the two-bedroom homes. Back in 2019, two-bedroom leases here closed at $2,600 to $2,750.

Owners who plan to rent should read the current rules on lease terms and tenant registration before buying. Those rules are not shown in the MLS records, so ask the management company for them in writing.

Pets, rules and the documents to request

Several sale records mark the community as "Pets Permitted" with "Pet Rules," without giving the limits. The association adopted a revised set of rules and regulations in 2008, which the management company sent to me in 2015; rules may have changed since. Owners have online access to association documents through the portal linked from masongrovehoa.com. Before you remove contingencies, read at least these:

• CC&Rs, bylaws and the current rules and regulations
• Current operating budget and the most recent reserve study
• Master insurance summary, including whether earthquake coverage is carried and its deductible
• Board meeting minutes from the last 12 months and any notice of special assessment
• Any parking, pet, leasing, satellite dish, barbecue or EV charging policy

Lender approval and condo eligibility can change, so ask your lender to confirm early.

Assigned public schools for 10201 Mason Avenue

On October 4, 2026, I entered 10201 Mason Avenue into the LAUSD Resident School Identifier. It returned these resident assigned schools:

Each name links to the school's California School Dashboard report. Addresses and status come from the California Department of Education School Directory. Assignments follow the exact address and can change from one school year to the next, so confirm them yourself with the LAUSD Resident School Identifier.

Errands, trains and parks near Mason and Devonshire

Mason Devonshire Plaza, at the corner just north of the community, includes a Trader Joe's at 10330 Mason Avenue. Mason Recreation Center, 10500 Mason Avenue, has ball diamonds, basketball courts and a play area. Stoney Point Park sits on Topanga Canyon Boulevard near Chatsworth Street.

Chatsworth Station, 10046 Old Depot Plaza Road, serves Metrolink's Ventura County Line, Amtrak and the north end of the Metro G Line, with free parking. The Ronald Reagan Freeway (SR-118) has exits at Topanga Canyon Boulevard and De Soto Avenue. The nearest hospitals include Northridge Hospital Medical Center (18300 Roscoe Boulevard), Kaiser Permanente Woodland Hills (5601 De Soto Avenue) and Providence Holy Cross Medical Center (15031 Rinaldi Street, Mission Hills). Northridge Fashion Center is at 9301 Tampa Avenue.

Projects and openings within a few miles, with their status

• OPENThe Cielo, 21300 Devonshire Street: 99 supportive homes, opened February 2026 (San Fernando Valley Sun, February 11, 2026).
• OPENThe 24, 9254 Winnetka Avenue: apartments now leasing; completion of a later 261-unit phase was not confirmed (Urbanize LA, May 22, 2024; developer site, October 2026).
• UNDER CONSTRUCTIONChatsworth Station accessibility upgrades: new paths, platforms, lighting and shelters, expected to finish in 2026 (Metro project page).
• UNDER CONSTRUCTIONNorth San Fernando Valley Transit Corridor: bus lanes and faster service on Roscoe Boulevard and Nordhoff Street, expected in 2026 (Metro project page).
• APPROVED9450 N. Shirley Avenue, Northridge: 350 apartments on a parking lot beside Northridge Fashion Center; whether construction has started was not confirmed (Urbanize LA, June 19, 2024).
• PROPOSED10963 N. Old Santa Susana Pass Road: senior housing with independent living, assisted living and memory care, filed September 15, 2026 (Hoodline, September 25, 2026).
• PROPOSED18444 Plummer Street, Northridge: 200 affordable apartments on a former Rite Aid site, construction planned for 2027 to 2029 (Urbanize LA, September 29, 2026).
• PROPOSEDToys "R" Us at Northridge Fashion Center, announced without an opening date (What Now Los Angeles, August 31, 2026).
• PROPOSEDSephora at Porter Ranch Town Center, 19811 Rinaldi Street, announced without an opening date (What Now Los Angeles, September 16, 2026).
• CLOSEDRite Aid, 18444 Plummer Street, Northridge (Urbanize LA, September 29, 2026).
• CLOSEDChatsworth Nature Preserve, the former reservoir, stays closed to the public except for an annual Earth Day event (LADWP-owned land).

Proposed projects often change size, timing or use, and some are never built. Check the city case file or the operator before relying on any of them.

My own record at Masongrove

My work here goes back to 2014, when I represented the buyer of a two-bedroom townhome. In 2016 I listed and sold that same home for the same client. I was also part of the purchase of a three-bedroom unit in 2022 and its sale in June 2025. Four escrows in one 140-unit community have taught me where the questions usually come up: dues history, the resale document package, garage condition and which plan a buyer is actually comparing against.

Related pages: Chatsworth homes for sale, Porter Ranch neighborhood guide, Northridge homes for sale and the full list of neighborhood and community guides.

Where each fact on this page comes from

• Sales, leases, dues, amenities and listing details: CRMLS Matrix records for 10201 Mason Avenue, pulled October 4, 2026, including 146 sale records from 2004 to 2026 and 14 lease records from 2019 to 2026.
• Unit count, floor areas, bedrooms, year built and tract: Los Angeles County Assessor parcel data, checked October 4, 2026.
• Association name, management company and board meeting notice: masongrovehoa.com, checked October 4, 2026.
• 2015 dues figure and 2008 rules revision: emails from the management company to Antonio Vaziri, November 2015. 2025 resale document fee: escrow correspondence, April 2025.
• Schools: LAUSD Resident School Identifier (searched October 4, 2026); California Department of Education School Directory; California School Dashboard 2025 reports.
• Nearby places: Trader Joe's store locator; City of Los Angeles Recreation and Parks; Metrolink station page; LA County locator; Kaiser Permanente; Providence.
• Projects: San Fernando Valley Sun (February 11, 2026); Urbanize LA (May 22, 2024; June 19, 2024; September 29, 2026); Hoodline (September 25, 2026); What Now Los Angeles (August 31 and September 16, 2026); Metro project pages for Chatsworth Station and the North San Fernando Valley corridor.