Our Services

At Surface, we manage every stage of the design process. Specialising in residential developments, our services encompass all stages of the design process from the Flood Risk Assessment and Viability stage through to Detailed Highways & Drainage Infrastructure Design, Private Works Design and Technical Approvals.

We also provide services for commercial and industrial projects

Practical, accurate and cost effective solutions for your project

    • Existing drainage assessment

    • Preliminary road levels

    • Preliminary Surface Water & Foul drainage design

    • Preliminary finished floor levels

    • Indicative underbuild & retention

  • Detailed FRAs incorporating robust Surface Water Drainage Strategies

    • Precise Impermeable areas take offs

    • Drainage modelling and calculations

    • Adoptable drainage layout

    • Longitudinal sections

    • Surface water & foul manhole schedules

    • 1:20 manhole schedules (if required)

    • Flood routing plan

    • Pump station compound layout (if required)

    • Submission of Section 104 design to relevant authority for Technical approval

    • Management of the S104 approval process

    • Road centrelines setting out

    • Road & kerb setting out

    • Longitudinal sections

    • Junctions setting out

    • Road construction details & specification to adoptable standard for relevant council

    • Section 38 layout and relevant drawings to form S38 submission and amendments carried out to technical approval

    • Road centrelines setting out

    • Road & kerb setting out

    • Longitudinal sections

    • Junctions setting out

    • Road construction details & specification to adoptable standard for relevant council

    • Section 278 General Arrangement and relevant drawings to form S278 submission and amendments carried out to technical approval

    • Setting Finished Floor Levels

    • Level accesses ensuring Part M

    • Underbuild identified and heights specified

    • Retention identified and heights specified

    • Drive gradients set

    • Private gully/ACO locations

    • Garden gradients set

    • Private car parks designed

    • Surface water & foul private drainage design

    • Cost effective design with appropriate cover based on external levels design

    • Cover levels and invert levels shown

    • Pick up points identified and noted

    • Drag out levels and setting out provided

    • Land Drainage Provided if required

  • Support to the client regarding their correspondence with the LLFA via the LPA

  • Preliminary and/ or Detailed Cut & Fill and Volumetric Assessments undertaken

    • Setting out coordinates provided on clearly marked layout for site use

    • AutoCAD files provided to assist with site setting out

    • Drainage surveys and dye testing

    • Site assessment prior to design

    • On site advice

    • Assessments during site construction progress

Our Process

Site Investigation

We conduct a thorough assessment of existing drainage systems and site levels to identify any physical or regulatory constraints. This enables us to develop and deliver the most efficient and cost-effective design solution tailored to the specific requirements of the site

Appraisal

Following the initial site assessment and preliminary modelling and calculations, we will produce a drainage and levels appraisal. This includes the preparation of relevant drawings to support planning applications, site acquisition decisions, or the development of accurate build cost estimates

Design

Production of detailed highway and drainage design drawings in accordance with the relevant adopting authorities’ standards and specifications, ensuring compliance for technical approval and adoption

Private Works Design

External levels and private drainage designed in accordance with the latest NHBC requirements (or other relevant standards and guidance), while also incorporating the client’s specific requirements and developer specifications

Technical Approval

Preparation and submission of Section 38, Section 104, Section 106, and Section 278 design packages to the relevant authorities, including coordination and response to technical comments to facilitate timely technical approval

Post Design Support

We provide ongoing design support throughout the construction phase, working closely with our clients to help ensure that site works proceed efficiently and in accordance with the approved design