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Atal Design Standards and education will help you establish confidence in working with the new Building Safety Act to ensure your structural waterproofing designs are fully compliant to navigate your project through Gateway 2.

What is Gateway 2?

Gateway 2 is a key approval stage under the UK Building Safety Act, which applies to higher-risk buildings that are typically residential buildings over 18m or 7 storeys high (with two or more homes). Gateway 2 acts as the “pre-construction” approval stage, where the developer must obtain building control approval from the Building Safety Regulator (BSR) before any building work can begin. The process is designed to ensure that all elements of the project, including structural waterproofing, comply with current regulations, technical standards, and Building Control requirements.

Gateway 2 was introduced to:

  • Prevent design changes during construction that compromise safety
  • Ensure risks are addressed before work begins
  • Increase accountability across the design and construction team

How Gateway 2 Affects Structural Waterproofing:

For below-ground structures, waterproofing design has become a major focus within Gateway 2 submissions. Inadequate waterproofing specifications, insufficient design information, or non-compliant systems can result in delays, rejected submissions, and costly redesigns. As a result, developers, architects, and contractors are increasingly seeking specialist support to ensure their projects meet Gateway 2 waterproofing requirements from the outset.

Atal works with you through the design process to help:

  • Ensure your structural waterproofing designs are fully compliant with Building Safety Act 2022 and BS 8102:2022
  • Prevent design changes during construction that compromise safety

  • Ensure risks are addressed before work begins

  • Increase accountability across the design and construction team

Atal is the structural waterproofing partner that eliminates the risk from the hardest part of your build.

Real Advice From Real Experience With The Atal Technical Lead

“We work across Type A, Type B and Type C waterproofing systems, as well as ground gas protection, and because we’re not hyper-niche in just one method, our team develops a breadth of knowledge that I genuinely believe makes us better at what we do.”

The Building Safety Act Raised the Bar Significantly

Gateway 2 is a critical stage introduced under the Building Safety Act 2022 for higher-risk buildings. In short, it requires detailed design information including your waterproofing strategy to be submitted and approved before construction can begin. The Building Safety Regulator (BSR) reviews these submissions, and if your information isn’t good enough, the project doesn’t move forward.

For waterproofing, that’s a significant shift. On a smaller domestic job, a solid set of designs would normally be enough. Gateway 2 is different. It’s not necessarily that the designs themselves have changed it’s the paperwork and supporting documentation behind them. CSSW reports, ground investigation reports, evidence of BS8102 waterproofing compliance, BBA-certified product specifications, technical detailing, risk assessments. The whole package.

Our Decision: Go Above and Beyond, Every Single Time

When Gateway 2 first started coming through, our team made a deliberate decision: we were going to do as much as possible for every submission. Rather than second-guessing what would be required, we went in with comprehensive Gateway 2 waterproofing design packages. Better to do too much and scale back later than to do too little and let a client down.

What that’s meant in practice is producing what I’d call textbook examples of how a Gateway 2 waterproofing submission should look. And something interesting happened as a result, the large-scale developers we work with started expecting that level of detail from everyone. Which meant that other companies who weren’t putting in the same effort were suddenly falling short by comparison.

One of the things I think genuinely sets us apart on Gateway 2 projects is that we offer a free bespoke design service as standard. Most companies either don’t have their own design team or charge separately for bespoke work. We do it as part of the package, and we warranty our designs too   which means developers don’t have to bring in two separate entities for the design and the sign-off. It simplifies things considerably.

“In simple terms, Gateway 2 is an approval stage where you need to prove your structure is safe before you start building it.” – Toby Pearl, Atal Technical Lead

Common Reasons Gateway 2 Waterproofing Submissions Fail

Many Gateway 2 submissions encounter delays because waterproofing is not addressed early enough within the design process. Issues within the design can lead to requests for additional information, redesign work It’s important to work with structural waterproofing partner to avoid any changes in the design.

These issues can lead to requests for additional information, redesign work, and programme delays during Building Control review.

Gateway 2 submissions may be declined due to:

  • Generic standard details or incomplete waterproofing specifications
  • Lack of coordination between designers and contractors
  • Incorrect system selection for groundwater conditions
  • Missing technical documentation
  • Failure to demonstrate compliance with BS 8102
  • Unverified or non-certified products

Atal Uses BBA-Certified Waterproofing Systems for Gateway 2 Projects

Certification and technical evidence are becoming increasingly important within Gateway 2 waterproofing submissions. Atal’s product range includes independently tested and BBA-certified systems designed to support specification confidence and long-term performance.
Using certified structural waterproofing systems demonstrates that products have been assessed for suitability, durability, and compliance. This helps provide reassurance to Building Control, principal designers, and wider project stakeholders throughout the approval process.

How Atal Supports Compliant Gateway 2 Waterproofing Design

  • Atal works closely with architects, developers, engineers, and contractors to support successful Gateway 2 submissions through compliant structural waterproofing design and specification.
  • Our experienced design team brings over 20 years of expertise in structural waterproofing and understands the technical requirements involved in achieving Building Control approval.
  • Ensure risks are addressed before work begins
  • Increase accountability across the design and construction team

  • Atal supplies a comprehensive range of BBA-certified Type A, Type B and Type C waterproofing products, as well as Ground Gas and Radon Protection

Without a compliant waterproofing design, projects may struggle to obtain Building Control approval.

What You Should Know About Atal Design Standards

Design team consisting Certified Surveyors in Structural Waterproofing (CSSW)
BS 8102:2022 Code of Practice for Protection of below ground structures against water ingress.
Compliance with the Building Safety Act 2022
NHBC. Chapter 5.4 – Waterproofing of Basements and Other Below Ground Structures
Premier Guarantee Technical Manual Chapter 6
MPA the Concrete Centre – Basement information Centre

Waterproofing Standards

Atal takes design responsibility for the waterproofing phase of the project, from initial design consultation with the architect, consulting engineer, contractor or all three, through the design itself complete with all necessary CAD drawings (including revisions) to produce a completed waterproofing strategy.

Why Choose Atal?

Proven Reputation

Our structural and basement waterproofing services have been used by many architects, contractors and groundworkers throughout the UK. See what they’ve had to say about our top quality services.

Quality Assured

Our bespoke waterproofing solutions are of the highest standard in the UK, supported by evidence and fully complying with BS 8102:2022 and the new British Safety Act, while maximising the value of the structural waterproofing methods on your project.

Top Quality Support

We offer on-site training for installing our products and continuous support throughout your project, from the start of the design process all the way to the finished structure. Our CPD seminars give you in-depth knowledge and understanding on various topics on structural waterproofing, including BS 8102 and the new Building Safety Act with Gateway 2.

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