Pricing larger new build

[TJC1]

Morning all

Need some advice on pricing a 6 bedroom house with a swimming pool.

Im use to pricing your average 3 bedroom new build but this is another step for me.

The house is 37m x 24m

Ground floor: Play room, family room, dining room, gallery/entrance, kitchen, pantry, study, sitting room, gym, utility room, plant room, craft room, gardeners wc, swimming pool

1st floor: 6 bedrooms, all en suits, 3 have large dressing rooms, ac room, laundry room, gallery/landing

Most downlights everywhere, all data and tv in rooms, 63a supply to swimming pool for now, no info on heating yet

 

[Spoon]

Could you not get the price you charge for doing the same to a 3 bedroom, divide it by the number of rooms, then times it by the number of rooms in the big house.
See what figure you get then, as a ball-park figure

 

[TJC1]

Could you not get the price you charge for doing the same to a 3 bedroom, divide it by the number of rooms, then times it by the number of rooms in the big house.
See what figure you get then, as a ball-park figure

Not a bad shout

 

[TJ Anderson]

100A supply I assume?

63A supply for the swimming pool? How much load will be connected and for what duration?

 

[Dustydazzler]

Houses this size can spiral quickly ...

I have worked on 6-7 bed houses that start off at around £100k then quickly spiral up and up and end up at £200k..
I have worked on houses with a £350k electrical budget.

Are you supplying everything??

What accessories are being used?? Very Unlikely White plastic will be spec, so you could end up with Wandsworth accessories at £30 a double socket

Is there a Lightning design ??

 

[SJD]

Could you not get the price you charge for doing the same to a 3 bedroom, divide it by the number of rooms, then times it by the number of rooms in the big house. See what figure you get then, as a ball-park figure

I think the above approach will likely underestimate somewhat.

Last large house I worked on, similar size/rooms, there was a lot more installed that you'd expect in a typical 3 or 4 bed.

Some examples:
- Marker lights in ensuites activated on entry, so you don't need to put on main lights in the middle of the night.
- Marker lights on staircases.
- Wardrobe lights.
- Data & speaker cables from everywhere back to a central cupboard.
- Some rooms had 7 speaker points, others maybe only 4 (we used 2km of nice speaker cable).
- Separate satellite & freeview coax distribution
- Kitchen big hob, 2 regular ovens, steam oven, warming drawers, built-in microwave, etc.
- Some 3 or even 4 way light switching (e.g. landing lights).
- Beside lights plus 3-way switching for main bedroom lights.

And the accessories will all be some decorative finish, perhaps grid switch modules.

 

[ipf]

Houses this size can spiral quickly ...

I have worked on 6-7 bed houses that start off at around £100k then quickly spiral up and up and end up at £200k..
I have worked on houses with a £350k electrical budget.


Is there a Lightning design ??

If your talking in those terms, I'm sure there would be a full spec involved.
Is there, by any chance? It doesn't seem so.

 

[TJ Anderson]

Ask for a full spec of what they want. If they can't then say you are happy to design it for them, consulting as you go along.........on day work

 

[Toneyz]

Leesparkykent is familiar with this type of top end new build and pricing. There is usually a lot to get involved with.

 

[Deleted member 105166]

Is there a Lightning design ??

Don't forget the SPDs

 

[Dustydazzler]

Don't forget the SPDs

Please refrain from swearing on here

 

[Deleted member 105166]

Please refrain from swearing on here

Hmmm, you started it by mentioning lightning!

 

[Deleted member 105166]

why do I get awarded Bad Spelling, @Dustydazzler ?

 

[Toneyz]

why do I get awarded Bad Spelling, @Dustydazzler ?

You're lucky I get Pete999 watching every word I post.

 

[Dustydazzler]

why do I get awarded Bad Spelling, @Dustydazzler ?

Sorry

It was my poor spelling

Auto correct put lightning instead of lighting

 

[Deleted member 105166]

Back on topic... if you only have a single phase 100A supply, that 63a swimming pool heater is using nearly two thirds of what you have available, with no diversity available on that circuit. In fact if the pool heater is on and the kitchen is in action, you could easily be drawing over 100A before allowing for anything else. A gas or oil fired plant room will come with cheaper running costs, if you have any influence over this. If however the supply is 100/3, as is often the case is many older large properties, then you'll have plenty of capacity to design with.

 

[Risteard]

Back on topic... if you only have a single phase 100A supply, that 63a swimming pool heater is using nearly two thirds of what you have available, with no diversity available on that circuit. In fact if the pool heater is on and the kitchen is in action, you could easily be drawing over 100A before allowing for anything else. A gas or oil fired plant room will come with cheaper running costs, if you have any influence over this. If however the supply is 100/3, as is often the case is many older large properties, then you'll have plenty of capacity to design with.

I know where you're coming from, but it's not that realistic that a domestic kitchen will be pulling 37A (or at least for any length of time).

 

[TJC1]

Thanks for all the reply's! Its in the early stages at the moment so only have some info.

They have asked for a standardish spec at the moment as to there usual house builds . Currenlty looking around 4/5 sockets in each room, down lights to suit the size room with a dimmer, 1 dual coax and one cat6 cable. But they think the spec may change as it goes on, they want to give a client a "rough idea" on price. They have asked for brushed stainless throughout

Not sure on the supply, but im guessing it could potentially be 3phase as the area has houses all around the same size with swimming pool, large plant room, heating etc. I have a friend who did a similar job and allowed a single phase 63a supply for a swimming pool on the price as i have no spec on the swimming pool

SPDs...

 

[Dustydazzler]

In this case I would price as you would normally price a job , per point white plastic and your standard led downlight etc etc

On jobs this size I then work out a list of wiring accessories I need and give it to 2 or 3 wholesalers to quote on in your stainless.

Add this to your original estimate and you have a very rough ball park figure for the customer

 

[Deleted account]

Ive just priced a 5 bed house 2 bathrooms, no pool.

Basic install onependant per room, basic number of sockets, gas cooker, mixer shower, nice and easy. £6500.

I spent 2 hours with client at address going over specs and 4 hours writing up quote.

He got a bit of a shock at price and was quoted less, but went with me because the other spark spent 15 minutes looking around and sent an undetailed quote with a price.

 

[Dustydazzler]

Very good point Pete

I try to do the most detailed estimate possible even if it takes 3 or 4 hours , at least the customer knows exactly what they are paying for

I am very sceptical of teeth sucking estimates where a sparks doesn’t even spend 5 mins at the site and plucks a random figure out the air

I just can’t work this way and if I were the customer I would want a proper estimate breakdown

 

[Risteard]

Ive just priced a 5 bed house 2 bathrooms, no pool.

Basic install onependant per room, basic number of sockets, gas cooker, mixer shower, nice and easy. £6500.

I spent 2 hours with client at address going over specs and 4 hours writing up quote.

He got a bit of a shock at price and was quoted less, but went with me because the other spark spent 15 minutes looking around and sent an undetailed quote with a price.

I just did a 3-bed cottage (single storey), all white plastic and no downlights for 6,200 Euro (although bear in mind the cable is substantially more expensive for Irish T&E).

 

[Dustydazzler]

With most sparks i speak to in recent years an absolute box standard 3 bed new build is coming out at about £6k all in

I no longer do housing estate new builds but it sounds about correct ??

 

[Deleted member 105166]

Currenlty looking around 4/5 sockets in each room, down lights to suit the size room with a dimmer, 1 dual coax and one cat6 cable...

Double up on the Cat6 and fit twins. For the little it costs vs. the inconvenience if one gets damaged...

 

[TJ Anderson]

With most sparks i speak to in recent years an absolute box standard 3 bed new build is coming out at about £6k all in

I no longer do housing estate new builds but it sounds about correct ??

Don't do that work either but know others who do....


Maybe for high end private builders....Not for nationals.....no way. 1 day first fix ,1 day 2nd fix and...ahem...."test"
It was 3k not very long ago.

Look at a Clarkson Evans site lol, you wouldn't want to pay more than 3k either haha

 

[Deleted account]

I just did a 3-bed cottage (single storey), all white plastic and no downlights for 6,200 Euro (although bear in mind the cable is substantially more expensive for Irish T&E).

6200 euro, what's that in £?

 

[Risteard]

6200 euro, what's that in £?

Depends which minute you check. The value in Sterling was constantly increasing during the meeting of the 27 remaining countries in the EU about the first extension until an agreement was announced.

Currently it's worth approximately Stg £5,363.67

I avoid changing currencies as much as possible. I have both Sterling and Euro accounts.

 

[TJ Anderson]

I just did a 3-bed cottage (single storey), all white plastic and no downlights for 6,200 Euro (although bear in mind the cable is substantially more expensive for Irish T&E).

Yeah, I remember reading about that. Fairly recent amendment I believe. You can't use a T&E with an unsheathed or reduced sized cpc in Ireland. Cpc has to be same size as live conductors and be insulated.

 

[Risteard]

Yeah, I remember reading about that. Fairly recent amendment I believe. You can't use a T&E with an unsheathed or reduced sized cpc in Ireland. Cpc has to be same size as live conductors and be insulated.

5th September 2017 was the implementation date for the new cable.