Project Overview
Baitlaws House is a residential renovation and extension project, located near Biggar, Scotland. The project consists of a part demolition/rebuild and new construction extension and improvement works to the house, with some services to various outbuildings and residences updated as part of the works.
The house has been renovated and largely extended, with a mix of existing and new-build elements, including improved fabric elements to existing portions and a swimming pool located in part of the proposed extension.
The existing house had thermal fabric upgrade work including new floor and roof insulation as well as existing window upgrades to reduce the energy demand of the property.
Mains cold water was fed from a natural spring, however this has been upgraded to a private borehole supply and filtration plant. This cold water supply serves the house and adjacent outbuildings and residences within the client’s land ownership, with pumped pressure water suitable to provide adequate pressure at all outlets.
The house is heated and supplied with hot water by the existing wood pellet Biomass boiler located within
an outbuilding. A limited number of areas, such as en-suite bathrooms and the garage, also utilise direct electric heating.
Space heating is provided via a plate heat exchanger and distributed via a variable speed circulation pump to serve radiators, underfloor heating systems, indirect hot water cylinders and pool water heating plant.
The existing fabric portion and first floor of the property is heated using radiators, whilst the new build and extended ground floor (including the pool room) is heated via LTHW underfloor heating.
All bathrooms and WCs located in the existing fabric portion of the house have dedicated mechanical extract ventilation.
The ground floor of the extension adjacent to the pool is ventilated via a mechanical heat recovery system (MVHR), with both trickle and boost flowrate settings to ventilate based on the temperature and occupancy. The MVHR system has an integrated summer bypass, to provide purge ventilation/fresh-air cooling during periods of hot weather.
The main pool hall is provided with ventilation as part of the pool designer and fit out package. A new 200A three phase LV electrical connection was provided to the house. One electric vehicle charging point is included in the house electrical installation, located within the garage. The property has an import/export friendly meter, to enable the client to install renewable technologies in the future.
The MEP works encompassed the following services
• Foul Drainage Above Ground
• Domestic Hot and Cold Water
• Electric Underfloor Heating
• Wet Underfloor Heating
• LTHW Heating
• General Extract Ventilation
• Mechanical Ventilation Heat Recovery
• Low Voltage Distribution
• Small Power Systems
• Lighting
• Home Control System
• Data System
• Television Distribution System
• CCTV
• Fire Detection & Alarm
• Security
