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Certified Passivhaus and Custom Home Builders

Award-winning construction company – building the next generation of energy-efficient homes in the UK.

Discover our Home Building Services

Oak kitchen of the Coldwells Build Passivhaus, Davidson. Large glazing with an oak dining table and black chairs.

The Coldwells Build Passivhaus Range

Our ready-made, prefabricated Passivhaus homes are designed for people who want to retreat comfortably and consciously in a high-quality, low-energy build. 

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The view from the kitchen of a modern house. A black kitchen island with concrete worktop are in the foreground. The kitchen sink and taps can also be seen. In the background a persons feet can be seen descending a birch plywood spiral staircase. The floor is micro cement. A white table and timber chairs are also in the background.

Custom Homes & Renovations

As award-winning contractors, we have a strong delivery record for building bespoke, architect-designed homes. If you have planning permission and drawings, we’ll manage the entire construction process. 

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We’ve made building the world’s best energy-efficient home really simple

Building a Passivhaus is complicated. From finding a certified architect and specialist contractors, to making the right design and layout choices. We’ve simplified 3000+ decisions into one expert package – the Coldwells Build Passivhaus.

Predesigned & Economical

Simply select one of our ready-to-go Passivhaus homes, choose from our selection of fixtures & finishes and we’ll build it on your land. We do the hard work for you. 

Passivhaus Certified

Passivhaus is the global gold standard of energy-efficient construction, providing year-round comfort with minimal heating costs and guaranteed, measurable performance.

Two Delivery Models

Choose between Coldwells Build or You Build. Coldwells Build is our fully fitted turnkey solution. With You Build, we deliver and assemble your Passivhaus but leave the interior to you. 

Honest Pricing

Upfront, accurate costing. The Coldwells Build Passivhaus range is designed and built to a fixed price, ensuring no unexpected or nasty surprises. 

Rapid Construction

Prefabricated in our Aberdeenshire workshop using durable materials, ensuring quality control and reducing on site assembly to a matter of days.

Future-Ready

Passivhaus certified quality you can see, feel, and rely on. Our homes won’t require expensive renovations or upgrades when Scotland goes net zero in 2045 (2050 for the rest of the UK).

What is Passivhaus?

A quick walk-through from Coldwells Build founder, Ross Booth. Here, he explains how we use the Passivhaus standard to build and deliver the world's most energy-efficient, healthy homes.

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Exceptionally Built.
Sustainably Delivered.

Build My Low-Energy Home

Combining elegant, functional design with the precision of prefabricated construction, our ready-to-go Passivhaus homes are engineered to guarantee a lifetime of comfort with virtually no running costs. They're the ultimate future-ready build.

Build My Low-Energy Home
Exterior of the Coldwells Build Passivhaus, Irving. Oak cladding, large windows with a pitched metal roof with sand dunes and sea landscape.
2 Beds 141m²

Irving

224,000
Bedrooms 2
141
Type 1.5 Storey
Exterior of the Coldwells Build Passivhaus, Foster. Black cladding with a sedum roof in a forest setting.
3 Beds 145m²

Foster

241,000
Bedrooms 3
145
Type 2 Storey
Side exterior of the Coldwells Build Passivhaus, Argyle. A bungalow with black cladding and a grey pitched slate roof.
4 Beds 144m²

Argyle

242,000
Bedrooms 4
144
Type Bungalow
4 Beds 189m²

Thomson

270,000
Bedrooms 4
189
Type 2 Storey
Front exterior of the Coldwells Build Passivhaus, Davidson. Oak clad prefabricated home with a slate, pitched roof and dormer, in a rural landscape.
4 Beds 170m²

Davidson

272,000
Bedrooms 4
170
Type 1¾ Storey
Exterior of the Coldwells Build Passivhaus, McKinley. Black clad prefabricated home, with large windows, pitched slate roof in a large garden with willow trees.
5 Beds 180m²

McKinley

255,000
Bedrooms 5
180
Type 1.5 Storey
The quality of workmanship was impeccable

Coldwells Build’s approach and the friendly, professional nature of their team has made for the perfect family home.

Clients: Lisa & Craig Beattie | Farragon, Aberdeen

Make Minimal Heating Costs a Fact of Life

The Coldwells Build Passivhaus exceeds future building standards for energy efficiency, providing a future-ready, net-zero living solution.

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Family of three and a dog looking at a bungalow in the distance, illustration by Jay Cover.

The Coldwells Build Passivhaus:
Frequently Asked Questions

If you’re seriously considering a Passivhaus home, you might be wondering how to begin the process. As award-winning master builders, we’ve compiled a list of our most common queries, with answers to help you plan. 

Recent Custom Home & Renovation Projects

Passivhaus isn’t all we do. We also create the highest calibre custom homes with award-winning construction and outstanding customer service. Our expertise and highly-skilled workforce helps bring design-led spaces to life.

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A modern home of stone, timber and glass sits atop a sloping gravel driveway, with a flat sedum living roof and a green vintage car in the carport.

Lynwood

Contemporary split-level, stone and timber home

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At Coldwells Build We're Qualified To Deliver

Our team is fully trained in Passivhaus construction. As a compact family-run business, we are committed to building homes to world-leading standards. In this short video, founders Clare and Ross Booth explain the importance of keeping the process in-house. 

Meet The Team

Budgets That Don't Budge

Each Coldwells Build Passivhaus is built to a fixed price, which gives you the freedom to plan with total confidence. Going over budget is the main concern for many self-builders, so we integrate cost-checks at 3 key stages to reassure you that we’re staying on track. 

1.

Guide Price Upfront

We give you a guide price at the very beginning of the process, based on our classic specification for your chosen Passivhaus design. This will give you an idea upfront of how much to budget.

2.

Site-Specific Variants

We evaluate the unique factors of your plot, such as ground conditions, utility connections and site access. Once complete, we’ll adjust the price and share accordingly.

3.

Fixed & Final Costs

During our 1-2-1 consultations, you’ll choose from our selection of materials and finishes. Once these are confirmed, we’ll calculate your fixed and final price – with Coldwells Build, there are no surprises to budget for.

Partner with a leader in green homebuilding

Unlock Discounted Self-Build Mortgages

We partner with a specialist lender, Ecology Building Society. They have extensive experience of funding projects with a positive environmental and social impact. Once your build is complete, they reward certified Passivhaus homes with a 1.5% discount off their standard variable rate. 

Reward Me
Man at desk with a lamp, on phone, illustration by Jay Cover.

Reasons To Act Now

Founder Clare Booth gives insight about why building a Passivhaus now is a smart move. With upcoming net-zero legislation changes ahead of us, investing now will save you money and ensure you stay one step ahead. 

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A Lifetime of Warmth Without Worry

Passivhaus homes are draught-free by design and convert sunlight and 'passive heat'—like body warmth and running electrical appliances—into efficient, usable energy.

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£ 133

Average annual heating bill for a Passivhaus home

Source: Passivhaus Trust UK, October 2023

Coldwells Build Manuals: Get Ready to Build

We’ve created 8 free-to-download guides packed with tips on budgeting, plot finding and self-building. Essential reading for anyone planning to build their home. 

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Passivhaus: Financing Guide

Explore a range of funding options to support your Passivhaus build, including green mortgages, government loans and more.

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Coldwells Build personifies everything you would want in a builder