Reduce New Build Plumbing and Drainage Costs

Central plumbing system

Reduce New Build Plumbing and Drainage Costs

Keep Plumbing In ‘Zones’ To Save On Installation And Maintenance

When planning an entirely new house build, the liberation of having a ‘blank sheet of paper’ to create the proverbial dream home to one’s exact specifications is an enticing prospect. Subject to planning permission of course, it’s possible to really go to town and make the definitive bespoke environment.

This is all well and good, but if the design ends up with rooms that require plumbing spread-eagled all over the property – a bathroom on one wall, the kitchen situated diagonally opposite on a completely different side of the house and the utility room somewhere else again – then planning for the plumbing and drainage can be a major and expensive undertaking. A property’s plumbing is complicated enough without adding more.


If it’s decided to follow a design where rooms with plumbing are spread all over the floor space of the property, then involved and extensive surveys have to be undertaken. Routes for drains, the fall of the land and pipe routing need to be carefully planned out and it’s likely some drainage will have to run under the property.

Alternatively, if provision were made to economise on plumbing and drainage requirements, then a simpler survey could result. Designing so that the boiler, WC, kitchen and utility room are all on the same wall – and one most convenient for drainage – might mean that main drainage wouldn’t have to run under the house and therefore would be far easier for inspection and maintenance should the need arise in the future.

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The services of a competent and experienced surveyor make a big difference. They can add a dose of reality to your overall design ‘wish list’.

Cost Savings

The installation of the plumbing infrastructure if plumbing items were installed on the same wall as described in the above paragraph would be considerably less than the more involved version where ‘plumbing rooms’ are spread out on various other walls. Copper piping and drainage fittings are expensive, so putting all your plumbing on a single wall can reduce installation costs.

Design Limitations

It’s possible that, in the event of going for ‘plumbing rooms at various points,’ it may not be possible to build to these specifications. Perhaps the locations of various rooms means they can’t be plumbed properly due to lack of provision for drains to slope to the required angle, and maybe pipes can’t be run to accommodate the long stretches that might be required.

An example of simplifying plumbing is where some properties have a design incorporating a water supply geographically central in the property so as to minimise long pipe runs to various sinks throughout the house. This can reduce the amount of water needed to run before it ‘warms up’ so saving time and expense.

Another consideration among some who plan ahead for plumbing considerations is to avoid running water pipes in exterior walls facing the prevailing colder winds.

Preparing for the Future

A plumbing infrastructure to cater for plumbing requirements spread all over a property will inevitably be more involved and complicated than one catering for a simpler plumbing set up such as that using predominantly just one wall. As a result, the likelihood of maintenance issues in the future is higher for more intricate plumbing – clogs and drainage issues could result, and any fault in the design stage such as not creating the right drainage slopes could have significant ramifications further down the line.

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Creating a true bespoke residence with ‘one wall’ plumbing and drainage is well worth it in the long run.

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