A buyer who moved into a new home in Sarjapur in 2026 discovered that his water came from a tanker at the mercy of summer prices, because the house had never been connected to the BWSSB network. He had assumed a piped connection came with the property, the way many buyers do. Applying for a Bangalore Water Supply and Sewerage Board connection was a step the seller had skipped, and it turned out to hinge on documents he already held, plus one rule about rainwater harvesting he had never heard of.

The short answer. A new piped water and underground sewerage connection in Bengaluru is issued by the BWSSB, and you apply online through the official BWSSB portal, which is integrated with the state citizen service system. You submit your sale deed, khata certificate, and sanctioned building plan, and for a premises of 1200 square feet and above you must also show that rainwater harvesting has been provided. The board inspects the property and levies charges that include a prorata charge, meter and inspection fees, a minimum charge, and a sewerage component. The trade off is that the charges scale with your property and the connection follows an inspection, so a buyer should budget for it and keep the documents and rainwater harvesting ready before applying.

What is a BWSSB connection, and why does a buyer need one?

A BWSSB connection is your metered piped water supply and underground sewerage link from the city's water utility, and a buyer needs it because the alternatives are costlier and less reliable. Homes without a board connection depend on borewells that can run dry or tankers that charge market rates in summer, so a sanctioned BWSSB connection is both a utility and a mark that the property is properly served. The board provides both the water supply and the sewerage connection, and for most homes the two are applied for together. For a buyer, confirming whether a property already has a BWSSB connection, and in whose name, is part of due diligence, because inheriting an unconnected property means applying yourself, while inheriting a connection means arranging a name transfer.

The practical point from the Sarjapur example is that a piped connection does not always come bundled with the house. Ask the seller for the BWSSB account details, and if there are none, plan to apply so you are not left dependent on tankers. It is also worth checking that the water bills are paid up to date on any existing connection, because unpaid dues attach to the property and can pass to you as the new owner if you do not confirm them at the time of purchase.

What documents do you need for a new BWSSB connection?

You need your ownership and civic documents, your building plan, and proof of rainwater harvesting where the rule applies. In practice the BWSSB asks for the sale deed or lease cum sale deed, the khata certificate, and the sanctioned building or plan, along with photographs of the building with the owner and an identity proof such as Aadhaar. The document that surprises buyers is the rainwater harvesting requirement: for premises measuring 1200 square feet and above, you must show that rainwater harvesting has been adopted for the property. Because the exact list and thresholds can change, confirm the current requirements on the official BWSSB portal, and keep the khata and tax records clean, since a civic connection expects the property to be properly recorded. Having these ready in advance is what keeps the application moving.

How do you apply for a new BWSSB connection online?

You apply on the official BWSSB portal, which lets you submit the form and documents online and is integrated with the state citizen service system. The board then verifies the papers and issues a reference number you can track. Work through the process in order.

1. Open the official BWSSB portal and choose the new water and sewerage connection service.
2. Fill in the application with your personal, property, and contact details accurately.
3. Upload the sale deed, khata certificate, and sanctioned building plan.
4. Attach the rainwater harvesting proof if the premises is 1200 square feet or above, plus photographs and identity proof.
5. Submit the application and note the BWSSB reference number generated for tracking.
6. Allow the property inspection, after which the board confirms eligibility and computes the charges.
7. Pay the connection charges and deposit, then have the connection and meter installed.

Track the request through the portal and respond to any query quickly, since the most common cause of delay is an incomplete document or a missing rainwater harvesting provision that has to be added before the connection is approved.

What charges and deposits apply?

The charges are a bundle rather than a single fee, and they scale with the property, so the board computes your figure after inspection. In broad terms the payable amount can include a prorata charge linked to the size of the premises, meter charges, an inspection fee, a minimum charge covering an initial period, and a sewerage component, along with any deposit. Because these depend on your plinth area and the specifics of the connection, the reliable number is the one the BWSSB assesses for your property rather than a rule of thumb from elsewhere. Treat any figure you read online as indicative and confirm the assessed charges on the official portal or at the BWSSB office. Budgeting for this bundle in advance, rather than assuming a small flat fee, prevents a nasty surprise when the demand is raised.

Is rainwater harvesting mandatory for a BWSSB connection?

For larger premises, yes: a property of 1200 square feet and above is expected to have adopted rainwater harvesting, and the board asks for proof of it. Bengaluru has pushed rainwater harvesting hard because the city's groundwater and supply are under strain, and the requirement is tied to the water connection process for qualifying premises. For a buyer this is a genuine checklist item, not a formality, because a property that should have rainwater harvesting but does not may need it retrofitted before the connection is cleared. If you are buying an independent house or a larger unit, ask whether rainwater harvesting is already in place and compliant. Because the threshold and the exact rules are set by the authorities and can change, confirm the current position on the official BWSSB portal before you rely on it.

Water connection, sewerage, and other BWSSB situations

Buyers meet several BWSSB scenarios, so it helps to separate them.

For a resale home the usual path is a name transfer, while a buyer of an unconnected or brand new property applies for a fresh connection and provides rainwater harvesting where required.

What should a buyer check before applying?

Before applying, a buyer should check whether the property already has a BWSSB connection, whether the khata and plan are in order, and whether rainwater harvesting is in place for a qualifying premises. If a connection already exists, confirm whose name it is in and plan a name transfer rather than a fresh application. If the khata or sanctioned plan is missing or inconsistent, sort that out first, because a civic water connection expects the property to be properly recorded and lawfully built. For any premises of 1200 square feet and above, verify that rainwater harvesting has been adopted, since its absence can hold up the connection. And budget for the bundle of charges the board will assess after inspection, rather than assuming a token fee. Doing these checks before you pay for the property means the connection becomes a simple follow up rather than an expensive problem you quietly inherit from the seller.

Frequently asked questions

How do you apply for a new BWSSB water connection?

You apply online through the official BWSSB portal, which is integrated with the state citizen service system. You fill in the application, upload the sale deed, khata certificate, and sanctioned plan, add rainwater harvesting proof for larger premises, and submit. The board issues a reference number, inspects the property, and computes the charges before the connection is installed.

What documents are needed for a BWSSB connection?

The BWSSB typically asks for the sale deed or lease cum sale deed, the khata certificate, the sanctioned building plan, photographs of the building with the owner, and an identity proof such as Aadhaar. For premises of 1200 square feet and above, proof of rainwater harvesting is also required. Confirm the current list on the official BWSSB portal.

Is rainwater harvesting mandatory in Bengaluru?

For premises measuring 1200 square feet and above, the BWSSB expects rainwater harvesting to be adopted and asks for proof of it during the connection process. Bengaluru has promoted rainwater harvesting to ease pressure on water supply. Because the threshold and rules are set by the authorities and can change, confirm the current requirement on the official BWSSB portal.

What charges apply for a new BWSSB connection?

The charges are a bundle assessed after inspection and can include a prorata charge based on the size of the premises, meter charges, an inspection fee, a minimum charge for an initial period, a sewerage component, and a deposit. Because they scale with your property, treat online figures as indicative and confirm the assessed amount with the BWSSB.

Line up the rest of your utilities and paperwork with our guides to getting a new BESCOM electricity connection and BBMP property tax for buyers. If you are still comparing homes, our overview of Amberstone Pride of JP Nagar shows the kind of ready to occupy checks worth making. Apply through the official BWSSB portal.

Last updated 2026-07-13. PropNewz Team.