TECHNICAL DESIGN

Building Regulations in Hessle

On the ground running down towards the Humber, the questions that stall a project are usually below the floor rather than above it. Where the water goes, what the foundations are sitting on, and whether anything is being built over a drain that belongs to somebody else.

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Drainage

building over and near a drain.

Approved Document H covers foul and surface water drainage, and it is the part of a domestic project most likely to change the design rather than just the specification. If a drain serves more than one property it is likely to be a public sewer or a lateral drain in the water authority's ownership, and building over or close to it normally needs a build over agreement. Across this region that is usually Yorkshire Water. Building control will ask whether it is in hand, and a foundation cannot simply be poured across somebody else's sewer while the paperwork catches up.

Surface water has its own order of preference. Soaking away into the ground comes first, then a watercourse, and only then a sewer. On lower ground towards the foreshore, where the water table can sit higher and the subsoil is less forgiving, a soakaway may not perform, and that has to be established by test rather than by hope. If it will not soak, the design has to find somewhere else for the water to go, which is a drawing decision, not a site decision.

  • Existing drainage traced and shared runs identified at survey stage
  • Build over agreement enquiries raised with the water authority early
  • Surface water strategy chosen against the drainage hierarchy
  • Soakaway viability treated as a question to be tested, not assumed
  • Drainage layout, gradients and connections drawn for the builder

Our Process

how we work.

01

Scope

We confirm what is notifiable and which application route fits the project.

02

Below Ground

We trace the existing drainage, identify shared runs and check what the ground is likely to be.

03

Technical Drawings

Sections, build-ups and details written against the relevant Approved Documents.

04

Structural Input

Foundation and beam design briefed to the engineer and then drawn as calculated.

05

Submission

Full plans lodged with East Riding of Yorkshire Council building control or a private approver.

06

Inspections

Excavations and drainage inspected before anything is covered, through to the certificate.

Hessle

the drains decide the foundations.

Find a shared run under the proposed trench once the digger is on site and the whole extension moves. Find it on the survey and it is a line on a drawing.

Planning authority: East Riding of Yorkshire Council

Ground Conditions

what the foundations are sitting on.

Foundation design sits under Part A and Part C, and it depends entirely on what is actually there. Ground closer to the Humber foreshore can differ noticeably from ground further up the slope, and the honest answer on any individual plot is that trial holes tell you and assumptions do not. Depth also has to account for nearby trees, existing shallow footings on the neighbouring side and any made ground from earlier construction.

Part C also covers moisture from the ground and site preparation generally. Where the water table sits higher, damp proofing and the detailing of the floor build-up matter more than they would on a drier site. If the property falls within an area identified as radon affected, protective measures may be required as well, which is a check we make from the published mapping rather than a guess.

  • Trial holes and foundation depth informed by what is found, not by a standard detail
  • Tree and shallow neighbouring footing influence assessed
  • Ground moisture and damp proofing detailed for the actual site
  • Radon protection checked against the published mapping where relevant
what the foundations are sitting on. - The Yorkshire Architect

The Rest Of The Set

above the damp proof course.

Once below ground is resolved the rest follows in the usual way. Beams and bearings under Part A, insulation and glazing balance under Part L, ventilation under Part F so the building can breathe once it has been sealed up, escape and alarms under Part B. Electrical work in the house falls under Part P and is either self-certified by a registered electrician or notified separately.

The set ends with the completion certificate. It is what a buyer's conveyancer will ask for, and on a project where the drainage needed an agreement it is also worth keeping that agreement with it. Both will be asked about eventually.

  • Structural calculations coordinated and drawn as construction information
  • Thermal element upgrades where walls, floors or roofs are altered
  • Part P electrical certification coordinated with the electrician
  • Completion certificate and drainage paperwork gathered for your records
above the damp proof course. - The Yorkshire Architect

Recent Work

projects near hessle.

Building Regulations by The Yorkshire ArchitectBuilding Regulations by The Yorkshire ArchitectBuilding Regulations by The Yorkshire ArchitectBuilding Regulations by The Yorkshire Architect

Questions

building regulations in hessle, answered.

Which building control service covers Hessle?

East Riding of Yorkshire Council building control is the local authority body for Hessle. You are free to appoint a registered building control approver instead, which is a private body working under the national register. The choice exists on every project and the standards applied are the same either way.

What is a build over agreement and do I need one?

It is consent from the water authority to build over or close to a public sewer or lateral drain. If a drain serves more than one property, assume it may be in their ownership. Some minor cases are dealt with under a simplified self certification arrangement, but that depends on the depth, the size and the position of the pipe, so it needs checking rather than assuming.

How do I find out where the drains actually run?

Lifting the covers and following the falls tells you most of it, and the water authority holds records of public sewers. On a survey we trace the runs and note where the extension footprint crosses them. It is one of the few checks that regularly changes a design, so it is done before drawings rather than after.

Will a soakaway work on my plot?

It depends on the subsoil and the water table, and on lower ground towards the Humber neither is guaranteed to be favourable. Viability is established by a percolation test rather than by looking at the garden. If a soakaway will not perform, the surface water has to go to a watercourse or, as a last resort, to a sewer with the appropriate consent.

How deep will my foundations need to be?

That is decided by what the trial holes show and by what is nearby, including trees and any existing shallow footings on the boundary. Ground on the slope down towards the foreshore is not uniform, so we would rather have someone dig a hole than argue from a map. The engineer designs from the findings.

Does building regulations approval cover flood risk?

Not directly. Flood risk is normally a planning matter, assessed through the planning application. The building regulations deal with resistance to moisture from the ground and with site preparation, and flood resilient detailing is guidance rather than a hard requirement. If your site is in a flood zone, that conversation belongs with the planning submission.

Do I need building regulations approval if planning permission is not required?

Usually yes. They are separate systems with separate tests. A rear extension in Hessle can fall entirely within permitted development and still need a full building regulations application for structure, drainage, insulation and ventilation.

What is checked at the drainage inspection?

That the pipes are laid to the right falls, bedded and surrounded correctly, connected properly and tested before they are backfilled. It is one of the stages where covering the work up before the inspector has seen it leads to it being dug out again, which is why the notice point is agreed with the builder in advance.

Do I need structural calculations?

If a load bearing wall is being removed, a beam installed, an opening formed or the roof altered, yes. The engineer sizes the members and specifies the bearings, and we draw the result so the builder is following a construction drawing rather than reading a calculation sheet.

Is a building notice quicker?

It starts quicker. It also means nothing is checked before it is built, so on a site where the ground conditions or the drainage carry unknowns you are simply moving the risk from the drawing board to the trench. On a Hessle project we would normally recommend full plans.

What certificate should I end up with?

A completion certificate from the council, or the equivalent final paperwork from a registered approver. Keep it with any build over agreement and the electrical certificates, because a buyer's conveyancer will ask for the set rather than one item from it.

Do you cover Anlaby, North Ferriby and the villages nearby?

Yes. Anlaby, Kirk Ella, Willerby, North Ferriby, Swanland and Brough all fall to the same authority and we work across all of them. The regulations are national, so what changes between them is the ground, the drainage and the age of the housing.

find the drains before the digger does.

A free consultation and a survey that looks below ground as well as above it, before anything is designed.

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