Shared vs Individual Water Bills in Dhaka Apartments — What to Negotiate Before You Sign
Water is one of the most consistently mis-billed items in a Dhaka apartment lease. Unlike electricity (usually sub-metered per flat with a direct DPDC bill) or gas (Titas flat-rate), water in most apartments is bundled into a shared building charge, and the mechanism for splitting that charge among flats varies from “carefully calculated per unit size” to “the building manager estimates it.” This post is a working guide to how water billing actually works in Dhaka apartment buildings, and the four negotiations that make the difference between paying a fair share and quietly subsidising the building.
How water actually reaches your flat
Two main paths, sometimes combined:
1. Municipal WASA supply. Piped from the WASA distribution network into a building underground reservoir, then pumped to an overhead tank, then gravity-fed to each flat. The building has one WASA meter at the connection; the bill goes to the building.
2. Private deep tube-well. Common in Bashundhara, parts of Uttara, and some Gulshan buildings. The building has its own well pumping into the underground reservoir. There is no WASA meter — instead, the operating cost is the pump electricity plus periodic maintenance.
Many buildings use both — WASA as primary, private well as backup — and the operating cost varies with the mix.
Who pays what, and how it appears on your bill
In most Dhaka apartment buildings, tenants receive one of three billing structures:
Structure 1: Bundled into service charge (most common)
The building charges every flat a fixed monthly service charge (৳2,000-6,000 depending on building tier). This charge covers:
- Guard salaries
- Cleaning staff
- Common-area electricity
- Elevator maintenance
- Generator diesel
- Water (both WASA bill and pump electricity)
- Small maintenance reserve
Water is one line inside this bundle, usually not itemised on the invoice. You have no visibility into whether the water portion is ৳400 or ৳1,200.
Structure 2: Separate water charge
Some buildings itemise water on the monthly bill:
- Per-flat flat rate — every flat pays the same amount regardless of size or occupancy. Simple but unfair to small households.
- Per-square-foot — flats pay in proportion to size. Fairer, still ignores occupancy.
- Per-person-declared — flats pay based on the number of occupants declared. Rare, most accurate.
Structure 3: Individual sub-metering
Newer buildings (mostly post-2020 construction) install per-flat water sub-meters. Each flat gets billed for its actual consumption. This is the fairest system and increasingly common but still a minority of the market.
The specific ways tenants over-pay
The vacancy problem
A 12-flat building with 2 vacant flats has 10 paying households covering 100% of the water cost. When you move in, the building manager may quote you a “per-flat share” that reflects the current occupancy, but never revise downward as vacancies fill.
Practice: ask what the water charge would be at full occupancy, and whether it drops when the building is fully rented.
The consumption asymmetry
A single-person flat and a family of six in identical flats produce very different water consumption — perhaps 3-5x difference in daily litres. In a bundled or flat-rate building, the single-person tenant is subsidising the family.
Practice: if you are a small household in a family building, sub-metering is worth negotiating even at your own upfront cost (individual meter install ৳4,000-8,000).
The pump electricity trap
In buildings using deep tube-well water, the pump electricity is a major cost item — often ৳15,000-40,000/month for a mid-size building. If pump electricity is billed under “common electricity” rather than “water,” and common electricity is split per flat, you are paying a share of a cost that scales with total consumption.
Practice: ask specifically how pump electricity is allocated. In sub-metered buildings, it should be split in proportion to metered consumption.
The tank cleaning surcharge
Building water tanks need periodic cleaning (twice yearly is ideal, once a year is common). Cleaning costs ৳6,000-15,000 per event. Some buildings pass this to tenants as a one-off surcharge; some absorb it. If passed to tenants, it should appear as a line item, not silently added to a random month’s service charge.
Practice: ask what the last tank cleaning cost and how it was split.
The bulk-water top-up
During WASA supply disruptions (relatively common in some areas), buildings buy tankers of water from private suppliers at ৳1,500-4,000 per tanker. If this happens 2-3 times a month in a bad supply area, it becomes a real cost. Some buildings pass through; some absorb.
Practice: ask whether the building has needed water tanker top-ups in the last 12 months and how frequent they are.
The four negotiation points
When signing the lease:
1. Ask for the water-line itemisation
Request that the water charge be listed separately on the monthly building invoice, not bundled into “service charge.” Even if the total does not change, the visibility is what enables the rest of the conversation.
2. Ask for the last 12 months of building water bills
For WASA-supplied buildings, the WASA bill is easily produced. For tube-well buildings, the pump electricity bill and any tanker purchase records. This gives you baseline data for what “normal” looks like.
3. Cap on annual increases
Water is a proxy for many building costs (pump maintenance, WASA rate hikes, tank cleaning). A clause capping annual water-charge increases at inflation + 3% prevents surprise 40% jumps a landlord might otherwise attempt at renewal.
4. Sub-meter installation
If sub-metering is not standard in the building, ask whether the landlord will install one for your flat (may pass the ৳4,000-8,000 cost to you as a lease-in cost, but the ongoing savings justify it). Some landlords resist because sub-metering exposes the current unfairness of the bundled structure to other tenants.
The specific building types where water is a bigger problem
- Older buildings with a single WASA meter and unclear allocation — the highest scope for hidden over-billing.
- Bashundhara and Uttara private-well buildings — pump electricity is often absorbed as common expense without transparency.
- Buildings with mixed WASA + tanker supply in areas with irregular WASA delivery.
- Buildings with heavy commercial ground-floor use (restaurants, salons, gyms) whose water consumption may be quietly shifted to residential tenants.
The building types where water is usually fine
- New developer-managed buildings with sub-metering as standard.
- Small buildings (under 8 flats) where owner-occupant dynamics tend to keep billing simple.
- Buildings on strict service-charge audits (some diplomatic-zone buildings and expat-heavy blocks publish monthly audited breakdowns).
What to do if you discover unfair billing after moving in
- Request the itemisation in writing. Most landlords cannot fabricate a WASA bill; asking for it surfaces the truth.
- Compare with neighbours. Same-size flats should pay the same water charge. If you discover you are paying 30% more than an identical flat, you have grounds for a conversation.
- Raise it at the building AGM if there is one, or in writing to the committee.
- Escalate to sub-metering as a lease-renewal ask. By month 12 of a lease, most landlords understand that a tenant asking for fairer billing is not going to accept the status quo forever.
The one habit that helps
Photograph your building’s water meter (WASA meter or building sub-meter if you have one) on the first of every month. Twelve months of consumption data gives you the definitive baseline for negotiating renewal and for detecting anomalies (a sudden 25% jump one month suggests a leak somewhere in the building that everyone is subsidising). It takes 30 seconds a month and prevents the type of billing dispute that otherwise depends entirely on the landlord’s word.