Cost of living.

Include mortgage principal and interest, property taxes, homeowners insurance, utilities, water and sewer, maintenance, and any association fees. A useful rule of thumb is to add roughly one percent of the home’s value each year for maintenance, spread across the months, plus a separate reserve for big-ticket items like a roof or boiler.

Eversource delivers both electricity and natural gas in Brockton. Two- and three-family homes often heat with gas; older houses without recent upgrades can see winter bills climb noticeably. Choose your own competitive electricity supplier or stay on basic service, and review the delivery and supply charges on each bill — they are separate line items. MassSave offers free home energy assessments and rebates for insulation, heat pumps, and efficient appliances that can trim these costs year-round.

The City of Brockton bills water and sewer separately from your utilities, typically quarterly or semiannually depending on the property. Ask the seller for the last year of bills during your offer period so you can put a real number into your budget instead of a guess.

Brockton sets its residential tax rate each fiscal year, and it is usually a meaningful line in a homeowner’s monthly budget. Estimate your bill by multiplying the city’s current rate by the property’s assessed value, and see the property taxes guide below for exemptions that may apply to you.

Homeowners insurance covers the structure and your liability, but standard policies exclude flood damage — some properties near brooks and low-lying areas need separate flood coverage, and lenders require it in mapped high-risk zones. Get quotes before you waive contingencies so insurance costs are part of your decision, not a closing-week surprise.

Much of Brockton’s housing is older, which is part of its character and part of its cost. Set aside reserves for roofs, heating systems, windows, and electrical updates. An inspection will tell you which systems are near the end of their life; a single boiler replacement or rewiring project can outweigh several years of small maintenance, so price it into your offer when it shows up.

Transportation belongs in the budget too. The MBTA commuter rail from Brockton’s three stations and BAT local buses cover many daily routes, while drivers should plan for parking at the stations, tolls on Route 24 and the expressways, and higher auto insurance in urban Massachusetts ZIP codes.

A few programs can shrink these numbers: MassSave energy assessments and rebates, city tax exemptions for eligible owner-occupants, seniors, and veterans, and state first-time buyer assistance through MassHousing. Check eligibility early — some benefits require applying within a set window after you buy.