How to Project Manage a House Renovation in London

The Role of a Project Manager in Construction

A project manager's job is to deliver the project on time, on budget, and to specification — and to do that, they must coordinate every element: design, procurement, programming, the sequence and timing of trades, site safety, quality control, and client communication.

On a self-managed renovation, all of this falls to you.

Before Work Starts: Programme and Procurement

The most important document in any renovation is the programme — a week-by-week schedule of every trade, booked in the correct sequence. Plasterers cannot start until first fix electrical and plumbing is complete and inspected. Flooring cannot go down until plastering is done and fully dry (allow 4–6 weeks minimum for new plaster). Tiling cannot start until walls are plumb and the floor is level and sound.

Book trades at least 4–8 weeks in advance. The best tradespeople in London are fully booked months ahead.

Order long-lead items — tiles, bespoke joinery, kitchen units, sanitaryware — at least 6–10 weeks before they are needed on site. Check delivery dates in writing.

During Works: Daily Site Presence

A project manager inspects the site daily. If you are managing yourself, you must do the same — or accept that work will slow without supervision. Check: is the correct trade on site today? Is the work to specification? Have any issues arisen that need an immediate decision?

Keep a daily site log: who was on site, what was completed, and any decisions made. This protects you in any later dispute.

Managing Costs and Changes

Every change to the specification mid-project has a cost. Even moving a socket by one metre has a knock-on effect on tiling, plastering, and decoration. Get every change agreement in writing with an agreed cost before it happens. Professional project managers call this a "change order."

Track spend weekly against your original budget. If costs are tracking over, you need to know early enough to make decisions — not when the invoice arrives.

When to Use a Professional Project Manager

On projects over £100,000, or on projects where you cannot be on site daily, or where the complexity is high (structural work, basement, extension + internal renovation simultaneously) — a professional project manager almost always pays for themselves in cost savings and time.

SuperBuilder provides dedicated project management on every project, with a daily-updated online log available to clients and their architects. Call us on 0800 530 0853.