Builds that fit your budget
Early-Stage Feasibility Estimates for Architects, Homeowners & Investors
We help architects, homeowners and investors set realistic budgets by providing early feasibility estimates, ensuring designs are achievable within budget before they are finalised.
Here's what you'll recieve ⇣
We're Thorough
Our estimates are highly detailed because we believe transparency is key. By clearly breaking down the quantity of each item, we ensure you have a full understanding of the build and what goes into it.
Here's what you'll recieve ⇣
We're Thorough
Our estimates are highly detailed because we believe transparency is key. By clearly breaking down the quantity of each item, we ensure you have a full understanding of the build and what goes into it.
Here's what you'll recieve ⇣
We're Thorough
Our estimates are highly detailed because we believe transparency is key. By clearly breaking down the quantity of each item, we ensure you have a full understanding of the build and what goes into it.
Estimate Summary
You'll receive a detailed summary of your estimate, breaking down the cost of each element so you can clearly see where your budget is allocated.
Estimate Summary
You'll receive a detailed summary of your estimate, breaking down the cost of each element so you can clearly see where your budget is allocated.
Estimate Summary
You'll receive a detailed summary of your estimate, breaking down the cost of each element so you can clearly see where your budget is allocated.
Builders OHP
We take a realistic approach to builders' overheads and profit, ensuring they align with industry standards. After all, builders need to make a living too. Our OHP is set based on area averages to keep estimates fair and accurate.
Builders OHP
We take a realistic approach to builders' overheads and profit, ensuring they align with industry standards. After all, builders need to make a living too. Our OHP is set based on area averages to keep estimates fair and accurate.
Builders OHP
We take a realistic approach to builders' overheads and profit, ensuring they align with industry standards. After all, builders need to make a living too. Our OHP is set based on area averages to keep estimates fair and accurate.
Our Process
Our 4 easy steps
01
Project Analysis
We start by reviewing your drawings and having a conversation with you or your architect to get a clear understanding of the project scope. To get started, you'd have to book your free call with us by clicking the button below 👇
02
Estimate
Our team usually spends around a day estimating the project costs. We cover all elements, including close estimates for electrical, plumbing, windows, and other specialist trades.
03
Handover
We send over your detailed estimate and jump on a call to discuss any questions and ensure everything is clear.
04
Cost Engineering
If your project comes in over budget, we’ll use our construction expertise to offer cost-effective alternatives, while preserving your desired design.
Two Storey Extension.
Steve approached CORE to better understand the costs of a double-storey extension designed by his architect. The initial estimate came in at £250,000, slightly over his budget. Through cost engineering, we identified more cost-effective material choices and alternative construction methods, reducing the total cost to £210,000 without compromising key design features. These optimisations were shared with the architect, who adjusted the design accordingly - ensuring Steve’s project stayed on track financially.
£265k
Initial Cost
£210K
After Using Core
Two Storey Extension.
Steve approached CORE to better understand the costs of a double-storey extension designed by his architect. The initial estimate came in at £250,000, slightly over his budget. Through cost engineering, we identified more cost-effective material choices and alternative construction methods, reducing the total cost to £210,000 without compromising key design features. These optimisations were shared with the architect, who adjusted the design accordingly - ensuring Steve’s project stayed on track financially.
£265k
Initial Cost
£210K
After Using Core
Two Storey Extension
Phillip approached CORE with a £100,000 budget for a double-storey extension, including underfloor heating and a new kitchen. Our initial estimate, based on the planning drawings, exceeded £120,000 - before factoring in the kitchen. To ensure Phillip got the most from his investment, we revisited his priorities and explored alternative solutions. After discussions, we pivoted to a single-storey extension with internal alterations, aligning with his needs while maintaining the key features he wanted. This approach brought the total cost to £96,105, including the kitchen and underfloor heating - keeping the project both practical and affordable.
£120k+
Initial Cost
£96K
After Using Core
Two Storey Extension
Phillip approached CORE with a £100,000 budget for a double-storey extension, including underfloor heating and a new kitchen. Our initial estimate, based on the planning drawings, exceeded £120,000 - before factoring in the kitchen. To ensure Phillip got the most from his investment, we revisited his priorities and explored alternative solutions. After discussions, we pivoted to a single-storey extension with internal alterations, aligning with his needs while maintaining the key features he wanted. This approach brought the total cost to £96,105, including the kitchen and underfloor heating - keeping the project both practical and affordable.
£120k+
Initial Cost
£96K
After Using Core
Testimonials
Hear from our clients
"CORE made it so much easier to understand the cost of my extension before getting too far into it. They helped me tweak a few things so it actually fit my budget without losing the important bits. Honestly, saved me a lot of stress and money. Would definitely recommend to anyone planning an extension."
Steve
Homeowner
"Had no idea my budget wouldn't stretch as far as I hoped, but CORE were really good at breaking it all down and showing me other options. Ended up with a different plan but actually makes way more sense for what I need. Glad I spoke to them first."
Phillip
Homeowner
"I’ve worked with CORE a few times now for clients who need a cost check before finalising designs. Their estimates are always clear and just make things easier for everyone. Definitely helps avoid those painful ‘we need to cut back’ moments later on."
Sarah
Architect
"CORE made it so much easier to understand the cost of my extension before getting too far into it. They helped me tweak a few things so it actually fit my budget without losing the important bits. Honestly, saved me a lot of stress and money. Would definitely recommend to anyone planning an extension."
Steve
Homeowner
"Had no idea my budget wouldn't stretch as far as I hoped, but CORE were really good at breaking it all down and showing me other options. Ended up with a different plan but actually makes way more sense for what I need. Glad I spoke to them first."
Phillip
Homeowner
"I’ve worked with CORE a few times now for clients who need a cost check before finalising designs. Their estimates are always clear and just make things easier for everyone. Definitely helps avoid those painful ‘we need to cut back’ moments later on."
Sarah
Architect
"CORE made it so much easier to understand the cost of my extension before getting too far into it. They helped me tweak a few things so it actually fit my budget without losing the important bits. Honestly, saved me a lot of stress and money. Would definitely recommend to anyone planning an extension."
Steve
Homeowner
"Had no idea my budget wouldn't stretch as far as I hoped, but CORE were really good at breaking it all down and showing me other options. Ended up with a different plan but actually makes way more sense for what I need. Glad I spoke to them first."
Phillip
Homeowner
"I’ve worked with CORE a few times now for clients who need a cost check before finalising designs. Their estimates are always clear and just make things easier for everyone. Definitely helps avoid those painful ‘we need to cut back’ moments later on."
Sarah
Architect
FAQ
Frequently Asked Questions
What is a feasibility estimate, and why do I need one?
Can you provide estimates without any drawings?
How accurate are your estimates?
How long does it take to receive an estimate?
What happens if my project exceeds the estimated budget?
Do we need to do a site visit?
How do we save money?
FAQ
Frequently Asked Questions
What is a feasibility estimate, and why do I need one?
Can you provide estimates without any drawings?
How accurate are your estimates?
How long does it take to receive an estimate?
What happens if my project exceeds the estimated budget?
Do we need to do a site visit?
How do we save money?
FAQ
Frequently Asked Questions
What is a feasibility estimate, and why do I need one?
Can you provide estimates without any drawings?
How accurate are your estimates?
How long does it take to receive an estimate?
What happens if my project exceeds the estimated budget?
Do we need to do a site visit?
How do we save money?
Can you afford your Build?
Book your free discovery call now, and let's get started.
Can you afford your Build?
Book your free discovery call now, and let's get started.
Can you afford your Build?
Book your free discovery call now, and let's get started.