ST-02 · New Rajuk rules
Septic tank construction & STP compliance in Dhaka
We check your building's septic tank and connections against the 2025 Building Construction Rules, design and build the septic tank, soak well or STP your building needs, and keep it desludged on a schedule, with records you can show an inspector.
Free · no obligation
Get a quote
Share your details, tell us about the place and the job, and get an instant approximate quote. Our team confirms the final price with you on a call or WhatsApp.
- 1Your details
- 2Your property
- 3Choose your service
- 4Your quote
What do the new rules say?
- Rule 1
Septic tanks and soak wells are required
Rajuk requires septic tanks and soak wells, and sewage treatment plants (STPs) where sewerage coverage is ineffective, under the 2025 Building Construction Rules.
Source: Dhaka Tribune, 31 Jul 2026 - Rule 2
STPs to be installed on time
On 17 September 2026 the Prime Minister directed agencies to ensure STPs are installed on time and illegal connections are cut.
Source: Dhaka Tribune, 17 Sep 2026 - Rule 3
Scheduled desludging is starting
DNCC is supporting a scheduled desludging pilot in Gulshan, Banani, Baridhara and Niketan, backed by the four neighbourhood societies.
Source: UNB, 2 Jul 2026
We don't quote plot-size thresholds until they are confirmed in the published rules. Our compliance check tells you what applies to your building.
How does it work, step by step?
- Step 1
Compliance check
We check the septic tank and its connections, and tell you in writing where the building stands.
- Step 2
Design
If a new septic tank, soak well or STP is needed, our engineers design it for your plot and building.
- Step 3
Construction
Built through vetted partners, with us as your one point of contact.
- Step 4
Desludging
Septic tank cleaning and sludge removal on a schedule, plus drain and sewer line de-clogging.
- Step 5
Records
Every visit logged, so you have records ready for inspection.
What's included?
Included
- Check of the septic tank and its connections
- A written report of what we found
- Septic tank, soak well or STP design by our engineers (when needed)
- Construction through vetted partners
- Scheduled desludging and records for inspection
How long does it take?
The check is short; retrofit work depends on what the survey finds. We give you a written timeline with the quote.
Our promise on this job
- Verified & trained staffNID and police verified, photo ID with a QR profile, and hands-on training before deployment.
- Smart management systemDigital attendance and task tracking, a complaint log, and a WhatsApp report with photos after every visit.
- Female staff on requestTrained women staff for homes where families prefer them.
Does my building need an STP under the new Rajuk rules?
It may. Rajuk requires septic tanks and soak wells, and sewage treatment plants (STPs) where sewerage coverage is ineffective, under the 2025 Building Construction Rules. Our compliance check tells you which applies to your building.
Why is this urgent now?
On 17 September 2026 the Prime Minister directed agencies to ensure STPs are installed on time and illegal connections are cut. DNCC is also supporting a scheduled desludging pilot in Gulshan, Banani, Baridhara and Niketan.
What does the compliance check include?
We check your septic tank and its connections, and give you a written report of what we found. It is part of our free building health check.
Who designs and builds the septic tank or STP?
Our engineers design it, and vetted partners build it. You deal with one accountable partner throughout.
How much does it cost?
We price retrofit, installation and desludging after we have surveyed your building, because every tank and plot is different.
Do you do septic tank cleaning and desludging?
Yes. We do septic tank cleaning and sludge removal on a schedule, plus drain and sewer line de-clogging, and keep a record of each visit.
Can you work with our society or owners' association?
Yes. Housing societies and flat owners' associations can take this on for the whole building or society as part of our partnership offer.
Often booked with
- Septic tank cleaning & sludge removal Scheduled desludging, with a record of every visit. Starts from Details
- Drain & sewer line de-clogging Blocked drains and sewer lines cleared. Starts from Get a quote
- Damp-proofing & waterproofing We trace where the water comes from, then waterproof and repaint. Starts from Get a quote
- Plumbing, water pump & motor repair Pipes, taps, pumps and motors, repaired and maintained. Starts from Get a quote
Book a free building health check
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