Construction Management Plan Cost & Timelines
"How much does a Construction Management Plan cost, and how long will it take?" are the two questions we hear most. There is no honest one-size-fits-all price, because a CMP for a basement extension and one for a multi-phased development are very different documents. The factors that set the price are simple, though, and a fixed quotation is free and arrives within 48 hours.
What Determines the Cost of a CMP
- Project scale and duration: larger, longer builds mean more methodology, phasing and impact assessment to document
- Demolition or basement construction: both trigger significantly more detailed council scrutiny
- Site constraints: narrow streets, tight access and sensitive neighbours require more detailed traffic and mitigation planning
- The borough's requirements: some London councils expect submissions in their own pro-forma with specific supporting information
- Supporting assessments: swept path analysis, noise surveys and similar specialist work, where the council requires them
When you request a quotation we review your planning condition wording first, so you only pay for the documents your council actually requires, whether that is a CMP alone or a package with a CTMP or CLP.
Typical Timelines
Most straightforward CMPs are drafted within 7-10 working days of receiving project information. Council review then follows the borough's discharge-of-condition process, which varies; busy planning departments can take several weeks. The practical advice: commission the CMP as soon as the condition appears on your decision notice, not when you are ready to start on site. The document cost is small against the cost of a site standing idle waiting for a condition to be discharged.
Frequently Asked Questions
How much does a Construction Management Plan cost?
The cost of a CMP depends on the scale and complexity of the project, the borough involved and whether supporting work such as swept path analysis or noise surveys is needed. A CMP for a single-dwelling extension is priced very differently from a multi-phased development. CMP Construct provides a free, no-obligation quotation within 48 hours of an enquiry. Send us the property address and planning details and we will confirm a fixed price for your project.
What affects the price of a CMP, CTMP or CLP?
The main cost drivers are: the size and duration of the build; whether demolition or basement construction is involved; the constraints of the site and surrounding streets; the specific borough’s requirements and preferred format; and any supporting assessments the council asks for, such as swept path analysis or noise surveys. When you request a quotation we identify exactly what your planning condition requires, so you only pay for the documents you actually need.
Is the quotation really free and no-obligation?
Yes. Quotations are free, provided within 48 hours of an enquiry, and carry no obligation. The most useful details to include are the full property address, the service you need (CMP, CTMP or CLP), the planning condition number if you have one, and a link to the planning application.
How long does the whole CMP approval process take?
Preparing the document is the quick part: most straightforward CMPs are drafted within 7-10 working days of receiving project information. Council review time varies by borough: discharge-of-condition applications have a statutory determination target, but busy planning departments can take longer, so it pays to commission the CMP as early as possible rather than waiting until you are ready to start on site.
Can a poor CMP delay my project?
Yes. A rejected or under-specified CMP is one of the most common causes of delay between planning approval and starting on site, because work cannot legally begin until the condition is discharged. A plan written by experienced construction professionals, in the format the borough expects, substantially reduces the risk of officer push-back and resubmission cycles.
