Victorian loft conversion cost and return on investment

Most loft conversions are straightforward constructions. Velux or roof light conversion is the simplest and the cheapest. It does not change the roof structure and only requires transforming the loft space with windows and a reinforced floor. 

Dormer loft conversions build vertically from the slope of the existing roof without dramatic changes. Although they have a box-like shape, you can add a hipped roof or gable-fronted roof for better aesthetics. Dormers can be on the side, rear, or front. An L-shaped dormer that connects two dormers on the side and rear roofs is a popular adaptation for a mid-terrace property. 

Hip-to-gable loft conversions, ideal for end-of-terrace and detached homes, convert the sloping side of the roof to a vertical gable wall. It opens up the head height and floor space shrunk by a hipped roof.

Usually built to the rear of a property, a mansard has a central flat roof and rear wall sloping at an angle of 72 degrees. A double Mansard combines a front and rear Mansard, creating a new storey to the house.

Roof light or Velux conversion – £1,150 – £1,350 per square metre

Dormer loft conversion – £1,250 – £1,450 per square metre

Mansard – £1,500 – £2,500 per square metre

Hip-to-gable conversion – £1,500 – £2,500 per square metre

Change of roof structure – £1,350 – £1,550 per square metre

A thorough and detailed understanding of planning guidelines is essential to get the green light for the project. It also ensures building work is lawful and does not obstruct neighbouring properties. To get the most from your investment, you need a beautifully designed space, functional and practical. Getting professional architects on board helps you create bespoke designs best suited for your property and lifestyle. A professional team also ensures all building control regulations are met. They have better experience coordinating with third-party suppliers and local authorities, minimising your workload and responsibilities.

Our designs are 100% bespoke to meet your individual needs, unique style, and personality. We utilise 3D technology for realistic visualisation. With VR experience, our blueprints leap off the page into a simulation. You will no longer have to imagine the end product. Our success story is embedded in our design-forward creation process, overseen by skilled architects.

We begin our projects with full cost transparency and separate contracts for design and build stages. The professional architects working with us offer fresh insights and creativity to maximise space, light, and elegance. Our designs are bespoke, and we have a flexible approach to work. We undertake planning application submissions and assist with party wall agreements, Thames Water build-over agreements, submitting building control applications, and preparing method statements. Our project managers oversee the works to ensure high standards.