Calculations for Building Control

Structural Engineering in Fleet

Underneath Fleet the ground is commonly London Clay with overlying Bagshot sands, so the ground can change noticeably over a short distance, and what a foundation or a bearing has to do depends on it. Open Plan Homes Limited carries out structural engineering across Fleet, designing against what a site investigation actually shows rather than against a standard detail.

We start with a look at the property itself. Once we know what is load bearing and what is not, we can set out the scope and a written figure, which is a very different conversation from an estimate given over the phone.

Fleet, Hampshire

Local Considerations for Structural Engineering in Fleet

Planning authority
Hart District Council
County
Hampshire
Typical ground
London Clay with overlying Bagshot sands, so the ground can change noticeably over a short distance
Party wall exposure
Detached and semi detached stock dominates, so many Fleet projects involve one adjoining owner rather than two, and a fair number involve none at all.

Not every street in Fleet presents the same problem. Nearer Fleet Pond, Fleet Road and Elvetham Heath you are typically looking at Edwardian and interwar villas around Fleet Road and the streets nearest Fleet Pond, while away from that older core the town runs to large 1960s to 1990s estates, plus the more recent Elvetham Heath and Crookham Park developments. The difference is not cosmetic: it changes how a wall is built, what it carries, and how an opening in it has to be supported.

Hart District Council is the local planning authority, with Hampshire County Council above it for highways matters such as skip permits and any scaffold that reaches the pavement, and that is who any application goes to. Alongside the general position, Hart applies tight controls around the Fleet Pond Site of Special Scientific Interest, and the Thames Basin Heaths Special Protection Area sits close by, both of which can matter where a project creates additional dwelling space rather than simply reorganising it. Where that applies to a property, the sequence has to run heritage first and structure second, because the acceptable solution can be narrower than it would otherwise be.

Detached and semi detached stock dominates, so many Fleet projects involve one adjoining owner rather than two, and a fair number involve none at all. The ground is another factor: across Fleet it is commonly London Clay with overlying Bagshot sands, so the ground can change noticeably over a short distance, and while that is a general picture rather than a promise about any one plot, it shapes what a foundation or a padstone detail has to achieve. This is our own doorstep, since the office is on Reading Road South, so a Fleet site visit is usually the easiest one in the diary to arrange at short notice.

What is included

Structural Engineering in Fleet: What Is Involved

This is the scope of structural engineering on a project in Fleet. What differs between one job and the next is the building, not the service.

01.

Steel Beam Design and Advice

Beams sized against actual loads and spans, with padstone and bearing detail specified rather than left to site.

02.

Structural Inspections and Reports

Written assessments of movement, previous alterations, or a defect somebody else has flagged.

03.

Foundation Assessments

Depth and type judged against the ground, nearby trees and drains, and the load the new structure adds.

04.

Load Bearing Wall Removal

The opening designed properly: what the wall carries, what the beam has to do, and what it bears onto at each end.

The structural question

The Part That Decides the Job

Across Fleet the same issue turns up in both the older stock and the later estates, though for different reasons: one because nothing was recorded, the other because the design assumed nothing would ever be altered.

Removing a wall to create an open plan ground floor is the most common structural alteration on a domestic property, and also the one most often underestimated. A spine wall running through the middle of a house frequently carries the first floor joists, sometimes the roof structure, and occasionally a chimney breast above. Where a chimney breast has already been removed at ground floor without adequate support, the remaining stack is being carried by something, and establishing what before a second opening is formed is not optional.

Steel beam installed over a newly formed structural opening with temporary props still in place
Questions we get asked

Structural Engineering in Fleet: Frequently Asked Questions

What is a padstone and why does it matter?

A padstone is a concrete or high strength block that spreads the beam's end reaction into the wall below. Without one, a correctly sized beam can concentrate its load onto brickwork that cannot take it, and the failure shows up as crushing or cracking at the bearing rather than in the beam.

Does removing a wall affect fire safety?

It can. Opening a hallway into a living space can remove the protected route to the front door, which matters most in houses of three or more storeys. The answer is usually a combination of interlinked alarms and, in some cases, a different escape strategy, and it needs designing rather than assuming.

What happens to ventilation when two rooms become one?

Ventilation requirements are assessed for the combined space, and a room that relied on its own window may no longer meet them once it becomes part of a larger area. Rooflights, trickle ventilation and mechanical extract are the usual remedies.

Are there heritage or planning constraints to watch in Fleet?

Yes. Hart applies tight controls around the Fleet Pond Site of Special Scientific Interest, and the Thames Basin Heaths Special Protection Area sits close by, both of which can matter where a project creates additional dwelling space rather than simply reorganising it. Where any of that applies to a property, permitted development cannot be assumed, and on a listed building even internal alterations can need consent. We establish which of these apply to your address at the start, because it can change the structural solution as well as the paperwork.

Will a project in Fleet need a party wall notice?

Detached and semi detached stock dominates, so many Fleet projects involve one adjoining owner rather than two, and a fair number involve none at all. If the property is semi detached or terraced, or if the foundations for any new element sit close to a boundary, the Party Wall etc. Act 1996 is likely to apply and notice has to be served before work starts. We can confirm the position once we have seen the property, and serve the notices as part of the same project rather than leaving you to arrange it separately.

Do you cover the whole of Fleet, including Fleet Pond?

Yes. Fleet is fully within our normal working area for structural engineering, from Fleet Pond, Fleet Road, Elvetham Heath and Ancells Farm through to the surrounding streets. This is our own doorstep, since the office is on Reading Road South, so a Fleet site visit is usually the easiest one in the diary to arrange at short notice.

Do you also work in the areas around Fleet?

Yes. Alongside Fleet we regularly work in Yateley, Hartley Wintney and Farnborough, and across the wider Hampshire border area from our office in Fleet. Bear in mind that some of those neighbouring towns sit under a different council to Fleet, so the planning and building control route can change from one to the next even over a short distance.

How much do structural calculations cost?

It depends on the number of openings and the complexity of the load path. We quote in writing against a defined scope rather than an hourly estimate.

Which council handles building control for structural engineering in Fleet?

Fleet falls under Hart District Council. It is the local planning authority, with Hampshire County Council above it for highways matters such as skip permits and any scaffold that reaches the pavement. That matters because a set of calculations and drawings has to be submitted to the authority that actually covers the address, and on this patch the boundaries run close together, so neighbouring towns can sit with entirely different councils.

Does the ground in Fleet affect the foundation design?

It can. Across Fleet the underlying ground is commonly London Clay with overlying Bagshot sands, so the ground can change noticeably over a short distance, and that has a bearing on foundation depth, on how a new bearing is detailed, and on how close to mature trees a foundation can sensibly go. That is a general description of the area rather than a statement about any particular plot, so where foundations are involved we design against what an investigation on the site actually shows.

Talk it through first

Structural Engineering in Fleet

Tell us what you are trying to do with the space and we will tell you what it involves. We are based at First Floor, 30 Reading Road South, Fleet, and Fleet is well within our normal working area. Every project gets a written scope and price after we have seen the property.