I used an architect on recommendation from a friend. He charged £500 for drawings, and another £500 for technical specification and submitting the planning application. We changed our minds on the drawings a bit, so we paid £1400 altogether. Best £1400 we have spent.
I was pretty certain about what I wanted - loft conversion and a single story extension to the kitchen. My architect spent a bit of time with me discussing exactly what I wanted, what my 'problems' areas were, and he came up with a completely different idea - double story extension (but small - only going out 6 feet, but up 2 stories), and rearranging the rooms upstairs. He was dead against the loft extension, saying it would always look like an add on and after-thought.
We went with the architect's design, and the house flows wonderfully now. (Incidentally, when we were getting quotes, the original plan of loft conversion & kitchen extension was significantly higher than the double story extension).
We had done some building work about 4 years before, in the kitchen, and a lot of it was pulled out and redone - so a lot of it was money down the drain - I wish I had spoken to an architect then.
So my advice, from experience, is speak to an architect first - they will come up with ideas you won't think of, and will actually save you money by not doing things in a piecemeal fashion. If you are planning to do an extension, you would save money by doing this at the same time as the wiring & heating.
You don't need an architect who is also going to supervise the build, if you are satisfied that you can manage / supervise it yourself.
Oscar is also right about doubling the amount you budget for - our building work was quoted as £26,500, but ended up at £32,000. That doesn't include the cost of 2 new bathrooms, tiles, doors & hardware, light fittings, new sliding sash windows, new kitchen (but we reused appliances), and carpet. In total the whole thing was about £65K, including fees.
One more thing, when you are getting quotes from builders, be as exact as possible on what the specification is and on what the price includes - i.e. Vat, skips, scaffolding, installing electrics to your spec (not allowing for one single pendant, as my builder claimed), tiling, builders public liability insurance etc. This is where the architect comes in - he will put all of this on the building spec.
To summarise - I would be doing this in the following order:
- Speak to an architect to get ideas.
- Speak to builder to get rough cost of build, to see if you can afford it.
- Back to architect to finalise drawings and get architect to submit the planning application for you (if needed).
- Once planning comes back, architect to draw up building spec (with everything possible on the spec - e.g. plumbing requirements, all electrical sockets & light fittings, insulation spec, tiling etc)
- You might need to get a structural surveyors report for certain bits - ours cost about £400.
- (This is the bit I didn't do, and wish I had done) Give the building spec to a Quantity Surveyor, to price it up.
- Either go to builders for quote (armed with your QS report to ensure quotes are realistic), or put it out to tender, based on QS report, to say 'this is the job, this is what I am prepared to pay'.
7a. Make sure you have a contract with the builder - covering timescales, variations to the build (i.e. if the founds suddenly need to be 2 feet deeper, who pays?) etc
- Before work starts, contact council to advise on building control. They are a god-send, and will come out and check on the progress of the build, and stop your builder from taking short-cuts. Builders always say you don't need them, but you do.
- Start writing cheques.
10. Consider divorce.
11. Enjoy your newly renovated house as the work becomes a distant memory.