Onn Point Civil Engineering

Onn Point Civil Engineering Onn Point Civil Engineering is a small family led, Civil Engineering Design Consultancy

No two sites behave the same. So no two drainage strategies should look the same either.📍 Some need infiltration-led des...
29/05/2026

No two sites behave the same. So no two drainage strategies should look the same either.

📍 Some need infiltration-led design.

📍 Some need attenuation and control.

📍 Some need a smarter route through difficult constraints.

Our job is to work out what fits, and design it properly.

That's the difference between a drainage strategy that fills a page, and one that helps move a project forward.

Get in touch with our team to discuss a project:

📞 01902 585206 | ✉️ [email protected]

Onn-Point was recently appointed to design an attenuation pond for a 5x building development with a total impermeable ar...
27/05/2026

Onn-Point was recently appointed to design an attenuation pond for a 5x building development with a total impermeable area of 970m² in Coleford, Gloucestershire. 📍

With the main site infrastructure already in place, the scheme required a dedicated attenuation feature to control surface water flows before discharge to the existing watercourse south of the site.

Key elements of the design included:

✔️ A new attenuation pond separating proposed flows from existing drainage features

✔️ Discharge restricted to 1 l/s in line with the agreed LLFA rate

✔️ 1 in 3 pond side slopes with minimum 300mm freeboard

✔️ Hydraulic modelling for the 100-year storm event plus 40% climate change allowance

✔️ Hydro-Brake flow control integrated within the outlet structure

A site-specific attenuation solution designed to manage runoff effectively, protect the wider site, and support long-term drainage performance.

📞 01902 585206 | ✉️ [email protected]

A site can look straightforward on paper - until the drainage is properly tested. 🌊 ❌Ground conditions, levels, discharg...
21/05/2026

A site can look straightforward on paper - until the drainage is properly tested. 🌊 ❌

Ground conditions, levels, discharge routes and planning expectations all influence what can realistically be delivered, and what absolutely cannot.

At Onn-Point, we help developers, architects and planning consultants understand the site properly from the outset, so the drainage strategy is based on real constraints, accurate data and a buildable route forward. 🏡 ✅

The earlier that picture is understood, the stronger the decisions that follow.

📞 01902 585206 | ✉️ [email protected]

Following the national standards published in 2025 - meant to improve consistency, resilience and long-term performance ...
15/05/2026

Following the national standards published in 2025 - meant to improve consistency, resilience and long-term performance in surface water design across England - a growing industry trend is that more councils are beginning to apply the new SuDS standards more directly at planning stage. 📍

What that means in practice:

✔ Closer review of drainage submissions

✔ More emphasis on how each standard has been addressed

✔ Stronger focus on maintenance and long-term performance

✔ Less tolerance for vague or generic SuDS statements

The direction is clear: drainage strategies now need to be sharper, better evidenced and more clearly aligned with the standards from the outset.

📞 01902 585206 | ✉️ [email protected]

Percolation testing is a simple process, but it has a major impact on the drainage strategy that follows.At Onn-Point, t...
14/05/2026

Percolation testing is a simple process, but it has a major impact on the drainage strategy that follows.

At Onn-Point, the process typically looks like this:

1️⃣ Test the ground - A trial pit is prepared and water is introduced to assess how the soil drains.

2️⃣ Review the results - The infiltration rate is measured to understand whether soakaways are viable.

3️⃣ Shape the drainage route - Those results then inform whether an infiltration-led solution is realistic.

4️⃣ Support the next stage - The data is carried into the wider drainage design and planning submission.

Done properly, percolation testing removes assumptions early and gives the rest of the project a clearer route forward.

📞 01902 585206 | ✉️ [email protected]

Onn-Point was recently appointed to deliver a drainage strategy for a farm developments in Cirencester, supporting a sch...
08/05/2026

Onn-Point was recently appointed to deliver a drainage strategy for a farm developments in Cirencester, supporting a scheme comprising a barn and multiple associated outbuildings. 📍

Following positive BRE365 infiltration test results, the strategy was designed around a straightforward SuDS-led approach that allowed surface water to discharge naturally via soakaways.

Key elements of the design included:

✔ Soakaway systems sized to suit the site and runoff volumes

✔ Permeable paving across hardstanding areas

✔ Filter drain directing flows to the proposed soakaway

✔ Catchpit manholes integrated into the layout

✔ A system designed for the 100-year storm event plus climate change allowance

A practical drainage solution designed to support planning while delivering reliable long-term surface water management across a working rural site.

📞 01902 585206 | ✉️ [email protected]

Onn-Point provides practical drainage support from the first site questions through to planning-ready design. 🤝Our servi...
06/05/2026

Onn-Point provides practical drainage support from the first site questions through to planning-ready design. 🤝

Our service offering includes:

1️⃣ Percolation testing and infiltration-led design

2️⃣ SuDS strategies and drainage statements

3️⃣ Soakaway and attenuation design

4️⃣ Hydraulic modelling and supporting calculations

5️⃣ Drainage layouts, details and maintenance strategies

Everything is built around one objective - giving clients a drainage solution that is clear, compliant and ready to move the project forward.

📞 01902 585206 | ✉️ [email protected]

In England, the new national SuDS standards published in 2025 are intended to promote consistency and improve long-term ...
01/05/2026

In England, the new national SuDS standards published in 2025 are intended to promote consistency and improve long-term performance and resilience. They now apply to new development and can also inform retrofit schemes.

What that means in practice:

💧 More scrutiny on surface water strategies

🛠️ Greater focus on long-term maintenance

📍 Stronger expectation for site-specific design

❌ Less room for generic drainage submissions

The direction is clear: drainage design needs to be more robust, better evidenced, and built for long-term performance.

📞 01902 585206 | ✉️ [email protected]

Onn-Point was recently appointed to deliver a drainage strategy for a residential redevelopment in Brighton, supporting ...
29/04/2026

Onn-Point was recently appointed to deliver a drainage strategy for a residential redevelopment in Brighton, supporting planning for the demolition of an existing bungalow and the construction of 2 new three-bedroom dwellings. 🏡

With infiltration confirmed as viable through on-site testing, the strategy was designed around a robust SuDS-led approach that balanced sustainable drainage with the practical demands of the site.

Key elements included:

✔ Green roofs to reduce runoff at source

✔ 3000L rainwater harvesting tanks to promote water reuse

✔ Permeable hard surfaces across the site

✔ Cellular soakaway crates providing attenuation and infiltration

✔ Hydraulic modelling confirming no flooding during the 100-year storm event plus climate change allowance

A clear, policy-compliant drainage solution designed to support planning approval while delivering long-term surface water resilience.

📞 01902 585206 | ✉️ [email protected]

One of the biggest issues in drainage today is the gap between what gets submitted and what actually works on site. 📑🏗️S...
24/04/2026

One of the biggest issues in drainage today is the gap between what gets submitted and what actually works on site. 📑🏗️

Some strategies still look fine in theory, but start to fall apart when real ground conditions, layout pressures and discharge constraints are properly reviewed.

That is exactly why drainage design in 2026 needs to be built on more than assumptions:

📍 Precise site data

📍 Precise technical thinking

Because better information upfront, leads to better decisions later in the build.

📞 01902 585206 | ✉️ [email protected]

A project can look straightforward - until the drainage is assessed properly. 💧🏡That’s why drainage design is Onn-Point’...
22/04/2026

A project can look straightforward - until the drainage is assessed properly. 💧🏡

That’s why drainage design is Onn-Point’s core specialism.

It directly shapes:

✔ Planning viability

✔ Site layout and levels

✔ SuDS compliance

✔ Discharge strategy

✔ Buildability on site

Get it right early, and the project moves. Get it wrong, and delays start to build in.

📞 01902 585206 | ✉️ [email protected]

Address

17 Goldthorn Avenue
Wolverhampton
WV45AA

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Website

Alerts

Be the first to know and let us send you an email when Onn Point Civil Engineering posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Onn Point Civil Engineering:

Shortcuts

Share

Category