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I need a qualified drainage designer to produce a full foul- and surface-water strategy that Lambeth Building Control will sign off for my rear two-storey extension and new basement. Planning permission is already secured and the architectural and structural drawings are ready for you to work from; I will share the DWGs and PDFs as soon as we start. The key driver is flood prevention. The garden sits in an area where surcharging has occurred in the past, so I want clear attenuation and back-up measures sized with real rainfall data and London guidance. Wherever practical I would like the pipework specified in PVC because that keeps the install cost down and matches most of the existing runs on site. The new system must also tie into the current foul and surface connections at the rear manhole without disrupting neighbouring properties. What I expect from you • A coordinated drainage layout (plan, long sections and details) showing pipe sizes, gradients, sump locations and any pump chambers for the basement. • Hydraulic calculations and attenuation volumes that meet the current Building Regulations, London SuDS hierarchy and Lambeth’s specific requirements. • A concise design report explaining the methodology, maintenance notes and how flood risk has been mitigated. • Any schedules or notes that my builder can lift straight onto site. Preferred tools are MicroDrainage (for calcs) and AutoCAD or Revit (for drawings), though I’m open if you use equivalent software that produces the same level of detail. All files should be issued in PDF and editable DWG formats. I will review the first draft with my structural engineer; after that we should only need one revision round to address any comments from Building Control. The front existing invert Level is 1.2 meters below ground level The new gravity system should run through the garage situated below the proposed new kitchen and all new drainage should use this side of the house The area of clay behind the left hand side garage will be excavated Plans can be viewed on the Lambeth planning portal reference 00840 and the plans have been passed Address of property 30 Ferndene Rd SE240AB.
Project ID: 40740945
24 proposals
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Active 6 days ago
Location: Ferndene Rd, London, United Kingdom
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24 freelancers are bidding on average £349 GBP for this job

With over eight years specializing in architectural and engineering design, I am confident that my skillset perfectly aligns with your requirements for a qualified drainage designer. My expertise in AutoCAD, Revit and MicroDrainage will undoubtedly bring great value to this particular project. Drawing from my extensive experience, I provide high-quality designs while staying within the given scope and focus on prompt delivery. Given your emphasis on flood prevention, I assure you that I have a thorough understanding of London SuDs hierarchy and Lambeth's specific regulations to produce a drainage system that fully complies. Additionally, my knack for precision is honed by years of meticulous work in design projects like yours. This means not only will I deliver a coordinated drainage layout and hydraulic calculations that meet regulatory standards, but also provide concise yet comprehensive documentation explaining the methodology used and appropriate maintenance over time. I look forward to collaborating with your structural engineer in order to promptly produce a first draft that will satisfy both of your needs well within your timeline. Hire me without hesitation as I seek only satisfaction and long-term partnership with my clients. If given this opportunity, I promise to work diligently towards achieving a result that exceeds your expectations in fulfilling all the necessary criteria set forth by Lambeth planning control.
£400 GBP in 3 days
8.0
8.0

As a seasoned engineer with an emphasis on drainage design, I am confident that I can address your specific project needs effectively. Throughout my career, I have consistently demonstrated fluency in the pertinent software you've outlined - including MicroDrainage, AutoCAD and Revit - which will allow me to produce the level of detail you require. My breadth of experience in hydraulics and hydrology work makes me adept at producing precise hydraulic calculations and discerning suitable attenuation volumes to withstand real-life flood scenarios. Understanding your emphasis on flood prevention, all my designs hinge on practicality and durability. This informs my preferred material choice of PVC whenever feasible—a selection that not only streamlines installation costs but aligns with the existing infrastructure. You can trust me to develop a coordinated drainage layout that seamlessly integrates with the current foul and surface connections without lightly affecting neighbouring properties.
£254 GBP in 2 days
7.5
7.5

Hello there, This is Sajjad Khan. I am an Architect with more than 6 years of experience in my field in Design and Visualization, MEP, Structural etc. I am experienced in Revit, Rhino, Twinmotion, 3ds Max, AutoCAD, SketchUp, Lumion, D5 Render and Blender as well. I have recent experience in similar projects also. It’s an interesting project and I am really excited to start working on it. Please Get in Touch with me for further discussion on the project.. Thanks Sajjad Khan
£260 GBP in 3 days
6.6
6.6

Hello, I’ve carefully reviewed your project requirements, and I believe my architectural experience and 3D visualization skills make me a strong fit for this project. I’m an experienced architect specializing in architectural design, 3D modeling, and high-quality rendering. I work confidently with AutoCAD, SketchUp, and Revit, and I have previously worked on projects with similar requirements. What I can offer you is not just drawings, but a clear and accurate architectural solution that matches your requirements, with close attention to dimensions, details, materials, and overall design quality. Feel free to message me and let’s discuss your project and how I can bring your idea to life. Best regards
£250 GBP in 7 days
6.0
6.0

Hello, As an architect with over 8 years of experience, I can confidently say that drainage design is one of my core strengths. Whether it's revamping surface water strategies or integrating foul water systems, I understand the importance of a foolproof plan, especially when it comes to flood prevention. I have been trained to utilize advanced tools such as MicroDrainage for accurate hydraulic calculations and Autocad, a software you've asked for, to create detailed drawings. Given your specific requirements and Lambeth's regulations, my methodology will ensure not only an efficient system but also one that seamlessly integrates with the existing infrastructure. My skill set in AutoCAD and Revit will enable me to produce clean and easy-to-interpret plans, elevations, and sections that your builders can directly implement without any mistakes. It's about saving time while ensuring top-notch precision. Lastly, I understand communication and coordination play an integral role in projects of this nature. My promise is daily updates on my progress along with being readily available for any discussions or revisions that might be required along the way. So let's collaborate and leverage my skills in AutoCAD, building architecture and Revit , to deliver a drainage design for your Lambeth extension that exceeds expectations Thanks!
£250 GBP in 1 day
4.9
4.9

With over a decade of experience in software development, engineering, and design, I am confident that my skills align perfectly with your drainage design project for the Lambeth extension. Having worked extensively with AutoCAD in the past, I'm well-versed in producing detailed long sections and plans - key elements you require for this project. Additionally, my proficiency in MicroDrainage will ensure accurate hydraulic calculations, meeting both Building Regulations and SuDS hierarchy. A crucial aspect of your project revolves around flood prevention. I completely understand the importance of mitigating flood risk and ensuring effective attenuation. My detailed design approach will consider real rainfall data and adhere to London guidance, ensuring your new system is not only watertight but also integrates seamlessly into the current connections. Using PVC pipework where possible is yet another measure I embrace to minimize installation costs while maintaining uniformity with existing runs on site.
£500 GBP in 3 days
4.6
4.6

As an experienced and highly skilled Civil Engineer proficient in drainage design using AutoCAD, I am confident that I can deliver the exceptional services you require for your drainage design project for your Lambeth extension. My extensive knowledge and expertise in producing comprehensive drainage designs tailored to meet stringent Building Regulations, London SuDS hierarchy, and local authority requirements make me an invaluable candidate for this task. Flood prevention being a key concern for your property, my approach will revolve around designing clear-cut attenuation and back-up measures based on real rainfall data and London guidance to ensure effective protection for your premises. Moreover, I understand the necessity of coordinating with existing infrastructure without causing disruptions to neighboring properties which I have successfully accomplished in previous projects. In addition to leveraging MicroDrainage for hydraulic calculations, AutoCAD/Revit for detailed drawings, my deep understanding of PVC installation can greatly contribute to keeping costs down while maintaining a uniformity with existing runs on site. Furthermore, the concise design report I provide will give a clear understanding of the methodology employed, helpful maintenance notes and demonstrate how flood risk has been mitigated. By choosing me, you get not only unmatched expertise but a reliable teammate dedicated to seeing your project compliant and successful from start to finish.
£250 GBP in 7 days
4.8
4.8

Hey, the key challenge is producing a coordinated foul and surface water drainage strategy that addresses the basement, existing connections, flood risk, attenuation requirements, and Lambeth Building Control requirements. I can develop the drainage layouts, hydraulic calculations, attenuation strategy, design report, schedules, and editable DWG/PDF deliverables based on your approved architectural and structural drawings. I’ll also coordinate the proposed gravity drainage route through the garage and the basement drainage requirements. Could you please clarify whether you already have the existing drainage survey/invert levels and current manhole connection details available?
£270 GBP in 1 day
3.3
3.3

Newry, United Kingdom
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