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Construction Management

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Construction management is a procurement route rather than a job title, and the distinction matters more on a domestic project than anywhere else. Under a traditional main contract, you have one contract with one builder, and that builder holds the contracts with the trades. Under construction management, you hold a contract with every trade directly, and you pay a construction manager a fee to programme, coordinate and supervise them on your behalf. The construction manager builds nothing and carries no trade contract.

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The attraction is control and speed. Work can start on the early trades while later packages are still being designed, you see every trade price rather than a single figure with an unseen margin in it, and you can change your mind without renegotiating one large contract. The cost of that attraction is risk. The person who would otherwise have carried the risk of a trade failing, going bust, or turning up late is now you.

There is also a legal consequence that is easy to miss. Holding several trade contracts directly means your project has more than one contractor, and that phrase has a precise meaning in construction health and safety law, with consequences for who has to do what.

Construction management, management contracting and a traditional main contract

  • Traditional main contract: one contract, one price, one party responsible for the whole of the works and for the trades it engages.
  • Design and build: the contractor takes on the design as well as the construction, which reduces your interfaces and also your control over specification.
  • Construction management: you contract directly with each trade, and the construction manager is paid a fee to plan, coordinate and supervise without holding the trade contracts.
  • Management contracting: sits between the two, with the management contractor holding the works packages itself while being paid a fee rather than a lump sum.
  • Cost certainty runs in the opposite direction to flexibility: the traditional route gives the firmest price and the least room to change your mind late.
  • On domestic work, construction management suits a long, phased, design-evolving project with an experienced client, and suits a one-off extension very badly.

Regulation 7 of CDM 2015: what happens to a domestic client's duties

The Construction (Design and Management) Regulations 2015 apply to domestic projects, and regulation 7 is the provision that decides who carries the client duties. It provides that where the client is a domestic client, the duties in regulations 4(1) to (7) and 6 must be carried out by the contractor for a project where there is only one contractor; by the principal contractor for a project where there is more than one contractor; or by the principal designer where there is a written agreement that the principal designer will fulfil those duties.

Regulation 7(2) covers the case where nobody has been appointed. If a domestic client fails to make the appointments required by regulation 5, the designer in control of the pre-construction phase of the project is the principal designer, and the contractor in control of the construction phase of the project is the principal contractor. Regulation 7(3) then disapplies regulation 5(3) and (4) to a domestic client, so a householder who has not made appointments does not thereby become the principal designer or principal contractor themselves.

Our whole-house renovation guide explains how this works on an ordinary project with one builder. What construction management changes is the arithmetic. If you hold contracts with a groundworker, a carpenter, an electrician and a plasterer, your project plainly has more than one contractor, so the duties go to the principal contractor - and if no principal contractor has been appointed, they go to whichever contractor is in control of the construction phase. On a genuine construction management arrangement, that question deserves a clear answer in writing before anyone starts, because the construction manager may or may not be a contractor at all.

What the construction manager is paid to do

  • Break the works into trade packages and advise on the order they should be let in.
  • Prepare and maintain the programme, including the sequence in which trades hand over to each other.
  • Obtain and compare trade tenders, with you signing each contract rather than the manager.
  • Coordinate the site: access, welfare, storage, deliveries, scaffolding and shared plant between trades.
  • Supervise quality and progress, and report to you at agreed intervals with something in writing.
  • Check applications for payment against work actually done, and advise you what to pay.
  • Manage the interfaces where one trade's work depends on another's, which is where a self-managed project most often loses time.

The building regulations duties that run alongside

Health and safety is not the only regime with dutyholders in it. Since 1 October 2023, Part 2A of the Building Regulations 2010 has required building work in England to be planned, managed and monitored so that it complies, with principal designers and principal contractors appointed in writing where there is more than one contractor, and with an express competence requirement on anyone carrying out building work or design work. Our project management guide sets out how those duties fall on a domestic project.

The important point for construction management is that the two regimes ask the same structural question and can be answered inconsistently. It is entirely possible to end up with one firm treated as principal contractor for health and safety purposes and a different arrangement assumed for the building regulations, which is exactly the sort of gap that surfaces when something goes wrong. Naming both sets of roles in the same document, at the same time, is a five-minute job at the start and an expensive argument later.

Building control itself does not change with the procurement route. The application still goes to a local authority building control service or a registered building control approver in England and Wales, the inspections still have to be booked at the right stages, and the completion certificate still has to be obtained. Under construction management, that responsibility does not sit inside a main contractor's programme any more, so somebody has to be explicitly given it.

The risk you keep when you hold the trade contracts

Under a main contract, if the plasterer walks off, that is the builder's problem: the builder has to find another and bear the delay. Under construction management, it is your problem, because your contract was with the plasterer. That single difference explains most of what goes wrong on domestic construction management projects, and it is why the route is sensible for an experienced client with a long project and unwise for a household doing this once.

The second risk is the gap between packages. Every trade contract has edges, and the work that belongs to nobody - the bit of blockwork under the door threshold, the duct that had to pass through somebody else's wall - lands on the client to resolve and to pay for. A good construction manager spends much of their time closing those gaps in advance; a weak one discovers them on site.

The third is cash flow and insolvency. Paying trades directly means paying several businesses on different cycles, and it means that a trade going under mid-package leaves you with an incomplete element and no main contractor standing behind it. Retentions, clear payment terms, and not paying significantly ahead of the work done are the ordinary protections, and they need to be in each trade contract rather than assumed.

Setting up a domestic construction management arrangement properly

  • Write down, before anything starts, who is principal designer and who is principal contractor, and get the appointments made in writing.
  • Decide and record whether a written agreement is being made for a principal designer to carry the domestic client duties.
  • Use consistent written contracts for every trade package, with the same payment terms, insurance requirements and dispute route.
  • Agree what the construction manager can instruct on your behalf and what has to come back to you for a decision.
  • Name who is responsible for the building control application, the inspection bookings and the completion certificate.
  • Require evidence of public liability insurance from every trade before they come on site, not after.
  • Keep one programme and one change log, and insist that package scopes are written to abut rather than to overlap or leave gaps.

What drives a construction management quote, and how LokalMatch fits in

A construction manager's fee reflects how much coordination the job needs and for how long: the number of trade packages, the length of the programme and the frequency of site attendance, whether the design is complete or still developing as packages are let, whether the property is occupied during the work, how constrained the site is for access, storage and deliveries, and whether the service includes tendering and payment checking or only supervision. The trade packages themselves are priced separately and directly, which is the whole point of the route and also the reason the total is harder to fix at the outset than under a main contract.

LokalMatch makes the introduction and nothing else. Set out the project once, with your postcode, the stage the design has reached and how you would like the work procured, and construction managers and contractors covering your area will be in touch. There is no cost to homeowners; the pros pay for the requests they receive. LokalMatch does not build or manage anything, does not set fees or prices, and does not vet, rank or recommend any business that responds, so satisfying yourself about their track record and insurance is your part of the process.

Construction Management: frequently asked questions

How is construction management different from hiring a builder?

Under a traditional main contract you have one contract with one builder, who engages and pays the trades and carries the risk if one fails. Under construction management you contract directly with each trade yourself, and pay a construction manager a fee to programme, coordinate and supervise them. You gain visibility of every trade price and the ability to start early packages before later ones are designed; you keep the risk of a trade going late, going wrong or going bust.

Who carries the health and safety duties if I contract with trades directly?

Regulation 7 of CDM 2015 says that where the client is a domestic client, the duties in regulations 4(1) to (7) and 6 must be carried out by the contractor where there is only one contractor, by the principal contractor where there is more than one, or by the principal designer where there is a written agreement to that effect. Holding several trade contracts means there is more than one contractor, so the duties go to the principal contractor - which makes it important to appoint one deliberately.

What if I never appoint a principal contractor?

Regulation 7(2) of CDM 2015 fills the gap: if a domestic client fails to make the appointments required by regulation 5, the designer in control of the pre-construction phase is the principal designer and the contractor in control of the construction phase is the principal contractor. Regulation 7(3) disapplies regulation 5(3) and (4) to a domestic client, so a householder does not become the principal contractor themselves by failing to appoint one. The roles still exist, but nobody has consciously accepted them.

Is construction management cheaper?

Sometimes, and not reliably. You see each trade price without a main contractor's margin and risk allowance on top, which can look cheaper at tender stage, but you also absorb the risk that the allowance was paying for. Gaps between packages, delay caused by one trade to another, and the cost of replacing a trade that fails all land on you. It tends to work out well on long, phased projects run by experienced clients and badly on one-off domestic jobs.

Does the building control process change?

The process does not, but the responsibility for running it has to be allocated deliberately. The application still goes to a local authority building control service or a registered building control approver in England and Wales, inspections still have to be booked at the right stages, and the completion certificate still has to be obtained. Without a main contractor whose programme contains all of that, somebody - usually the construction manager - has to be given the job in writing.

Sources

  1. The Construction (Design and Management) Regulations 2015, regulation 7 (domestic clients)
  2. The Construction (Design and Management) Regulations 2015, regulation 5 (appointment of the principal designer and the principal contractor)
  3. HSE: Domestic clients - roles and responsibilities under CDM 2015
  4. The Building Regulations 2010, Part 2A (dutyholders and competence)
  5. GOV.UK: Building regulations approval

Written by the LokalMatch editorial team. Last reviewed 21 September 2026. How we write and check our guides

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What affects the cost of construction management

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Size and scope of the project
  • Structural changes, such as moving or removing walls
  • Plumbing, electrical and HVAC work involved
  • Finishes and materials chosen
  • Design, drawings and permits
  • Condition of the existing house once it's opened up
  • Access to the site and the timeline

How to compare construction managers before you hire

  • Look for a contractor who has finished projects similar in size and type to yours, and ask to see them.
  • Get a written contract with the scope, the payment schedule, the timeline and how changes will be priced.
  • Ask who will manage the job day to day and how often you'll get updates.
  • Check that they carry liability insurance and workers' compensation coverage, and that their trades are licensed where required.
  • Compare quotes on the same scope, and ask what each one leaves out.
  • For structural changes, make sure an engineer or designer is involved where needed.

Questions to ask construction managers before you hire

  • Who will pull the permits, and who will be there for inspections?
  • Which parts of the job will you do yourselves, and which will go to subcontractors?
  • How do you handle change orders and unexpected problems once walls are open?
  • What is the payment schedule, and what is each payment tied to?
  • Can you show me proof of liability insurance and workers' compensation coverage?
  • What warranty do you offer on your workmanship, and is it in writing?
  • Can I speak with a few of your recent clients?

Construction management permits and local rules

Some construction management work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

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