COST MODEL | LATER LIVING Apartment fit-out rates Based on an NIA 5,000m2 Total () /m2 on GIA /ft2 on GIA Sanitaryware 1B ed comprising an en suite with WC, WHB, individual bath and shower, and a water closet with WC and WHB. 2Bed comprising master en suite with a WC, WHB, individual bath and shower, a secondary en suite with a WC, WHB and shower, and a water closet with WC and WHB. Includes subcontractor prelims. 589,000 117.80 10.94 52,000 10.40 0.97 Disposal installations Waste pipework serving sanitaryware and white goods. Condensate pipework to fan coil units, interface units and mechanical ventilation heat recovery unit. Includes testing and commissioning, and subcontractor prelims. Development details Water installations Copper hot and cold water pipework, complete with phenolic foam insulation, serving sanitaryware and white goods. Includes testing and commissioning, and subcontractor prelims. 234,000 46.80 4.35 194,000 38.80 3.60 938,000 187.60 17.43 Heat source Heat interface unit with energy meter. Chilled water valve set with energy meter. Includes testing and commissioning, and subcontractor prelims. Space heating and air treatment systems LTHW underfloor heating throughout, providing heating. Two-pipe fan coil units in bedrooms, living areas and kitchen, to provide cooling. Heated towel rails in bathrooms.Includes testing and commissioning, and subcontractor prelims. Ventilation Mechanical ventilation heat recovery (MVHR) unit with PVC ductwork, complete with attenuation and linear grilles. The fresh air and exhaust ductwork is insulated. MVHR boost system, including override switch within the utility cupboard and kitchen, double pole light switches in bathrooms, providing a boost function. No allowance for kitchen extract hood or ductwork. Includes testing and commissioning, and subcontractor prelims. 290,000 58.00 5.39 815,000 163.00 the London office of Aecom 15.14 Extra over for close care apartments (cost per two-bed apartment) 108,000 21.60 2.01 Communication, security and control systems LD1 fire-detection system. TV and data, with brushedfinished sockets. Security wireways for future intruderdetection installation. Video-entry panel, and smart heating/cooling and lighting control. Includes testing and commissioning, and subcontractor prelims. A NDREW FREEMAN is a cost manager based within The engineering services cost management group of Aecom specialises in the cost estimating, procurement and cost management of building services installations. It is producing a series of cost models for CIBSE Journal in 2020 on areas such as data centres and Londons commercial buildings. Protective installation Sprinkler installation with individual flow switches. Includes testing and commissioning, and subcontractor prelims. This cost model is based on a high-end, later living development located in the south of England. The basis of the development is a four-level apartment block with two cores from ground to level three, with a gross internal area (GIA) of 9,000m2 and an apartment net internal area (NIA) of 5,000m2. There are 50 apartments located from level 1, with the unit mix based on: 20 one-bedroom apartments at an average NIA of 80m2; 25 two-bedroom apartments at an average NIA of 110m2; and five two-bed, close care units, at an average NIA of 130m2. The cost model excludes: lifts; external works; utilities; inflation beyond 4th quarter; main contractors costs; fees and VAT. CJ ABOUT THE AUTHOR Electrical installations Consumer unit. Small power with brushed-finished sockets. Lighting, including downlights, cove linear lighting in bedrooms, mirror lighting, downlighters within kitchen cabinets, low-level wayfinder lighting, and 5-amp sockets. Includes testing and commissioning, and subcontractor prelims. feature lighting and music systems. Developments can also incorporate private cinema rooms. In addition, there will be a fully equipped gym and studios, and often a spa, comprising a swimming pool, sauna and treatment rooms. Hair and beauty services are also available to residents. These developments will feature private and secure gardens that incorporate sensory areas for residents. The requirements of residents extended family are often also considered, with guest suites available for overnight stays. They can also sometimes stay with a resident in their apartment and have in-room catering, while a play area for small children is often provided within the grounds. 814,000 162.80 15.12 Builders work in connection with services 81,000 16.20 1.51 Fit-out total costs 4,115,000 823.00 76.46 Extra over for uplifts to dementia care apartments, including: standalone flood/leak detectors to all bathrooms and kitchens; aspirating fire-detection system; full-home automation system, including video-entry panel; medical alert signalling/nurse call within each room; link between leak and temperature detectors and the extra care team; heating/ cooling controls; and circadian lighting control. Fit-out uplift per two-bed extra care apartment 24,000 184.62 17.15 24,000 184.62 17.15 The cost model is for a development of 50 apartments 20 one-bed, 25 two-bed, and five two-bed close care apartments 58 March 2020 www.cibsejournal.com CIBSE Mar20 pp56-58 Cost Model.indd 58 21/02/2020 15:06