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To facilitate the public’s understanding of the cost of building rehabilitation works, the Building Rehabilitation Platform has commissioned a quantity surveying consultant to examine and analyse cost data gathered from contracts which were awarded from 2009 to first quarter of 2019 under various assistance schemes administered by the Urban Renewal Authority. As a result, 25 typical items in building rehabilitation works for common area (hereafter “Typical Works Items”) are drawn up, each supplemented with their respective “Reference Unit Rate”.

 

The coverage and requirements as stipulated under Typical Works Items are set according to the commonly adopted standards in the market. If any work plans to adopt requirements that are deviated from the prevailing standards, relevant adjustments would be necessary in the application of Reference Unit Rate under Typical Works Items.
 

Owing to the limited coverage of samples at this moment, the Reference Unit Rates could only be generated from market prices in the first quarter of 2019. However, making reference to the "Building Works Tender Price Index*" produced by Architectural Services Department, there is no obvious inflation, thus it is considered that the Reference Unit Rates remains useful in formulating Budgets for reference.

 

To reflect the market trend and price fluctuation, data would be updated every 6 months at the market price of past two quarters (i.e. past 6 months) after first release. For example, the data at the market price of first quarter of 2021 would be published in the third quarter of 2021.

 

*Based on tenders for new building works (excluding building services works) undertaken by Architectural Services Department

 

Reference Unit Rate of Typical Works Items    (As of Q1, 2019)

 

Ref. Category of Typical Work Items Typical Work Items Measurement Unit Reference unit rate (Range) Reference unit rate (Average)
1 Preliminaries Site Preparation and Preliminaries % of Work Value 9 - 20% 15%
2

Scaffolding

(Erection and Removal)

m2 $185 - $270 $228
3 External Elements and Other Physical Elements Repair Works for External Rendering #1 (Patch Repair) m2 $310 - $730 $520
4 Renovation Works for External Wall Paints m2 $145 - $245 $195
5

Supply and fix Communal Condensated Water Disposal Pipes for Air-Conditioners with fittings; uPVC

(Nett length of main pipes)

m $140 - $435 $288
6 Structural Elements Repair Works for Concrete Structure #2 (Patch Repair) m2 $660 - $2,140 $1,400
7 Fire Safety Elements Supply and fix Fire Service Water Pipes with Fittings m $580 - $1,850 $1,215
8 Supply and fix Fire Service Water Pumps Set $39,000 - $105,000 $72,000
9 Supply and fix Fire Service Hose Reel with Fittings Set $3,400 - $11,500 $7,450
10 Supply and fix Fire Service Water Tank; Fibreglass Set $45,000 - $138,000 $91,500
11 Replacement Works for Public Wooden Doors and Frames; Single Leaf (FRR not less than 1 hour) no. $5,000 - $6,600 $5,800
12 Replacement Works for Stainless Steel Doors and Frames; Single Leaf (FRR not less than 1 hour) no. $13,500 - $20,000 $16,750
13 Supply and fix Fire-rated Enclosures (FRR not less than 1 hour) m2 $1,600 - $3,200 $2,400
14 Supply and fix Emergency Lighting Set $1,200 - $2,150 $1,675
15 Drainage System

Replacement Works for External Soil and Waste Water Disposal Pipes; complete with vent and branch pipes with fittings; uPVC

(Nett length of main pipes)

m $430 - $750 $590
16

Replacement Works for External Rainwater Disposal Pipes with fittings; uPVC

(Nett length of main pipes)

m $200 - $480 $340
17

CCTV Survey of Underground Drains, including High Pressure Water Jetting and Survey Report

 

(40 Flats or below)

Item $8,800 - $20,000 $14,400

CCTV Survey of Underground Drains, including High Pressure Water Jetting and Survey Report

 

(above 40 Flats)

Item $14,000 - $26,500 $20,250
18 Replacement Works for Underground Drains m $5,100 - $10,000 $7,550
19 Window Repair and Replacement Replacement Works for Windows at Staircases (FRR not less than half hour) no. $3,100 - $4,700 $3,900
m2 $2,250 - $4,800 $3,525
20 Works to Roof Rooftop Waterproof Works m2 $1,350 - $2,100 $1,725
21 Repair Works for Water Tank Waterproof m2 $1,150 - $2,850 $2,000
22 Renovation to common area Renovation Works for Internal Wall Paints at Public Areas m2 $60 - $120 $90
23 Repair Works for Internal Rendering #3 (Patch Repair) m2 $120 - $530 $325
24 Plumbing works

Replacement of Fresh Water Pipes with Fittings

(Nett length of main pipes)

m $1,800 - $4,900 $3,350
25

Replacement of Flushing Water Pipes with Fittings

(Nett length of main pipes)

m $350 - $1,250 $800

#1 The unit rates are estimated based on the assumption that the dilapidated portion is about 10% of the building’s external wall area.
#2 The unit rates are estimated based on the assumption that the dilapidated portion is about 5% of the building’s external and internal wall area.
#3 The unit rates are estimated based on the assumption that the dilapidated portion is about 10% of the building’s internal wall area.

 

For more details on Typical Works Items, please refer to the information sheet below:

 

Example

1) Formulating Budgets
The Owners' Corporation (OC) A has received a Mandatory Building Inspection Scheme (MBIS) statutory notice. Though appearing in fair conditions, the building has never undergone any rehabilitation work. To discharge the notice, it is expected that completion of prescribed repair works will be required.


After defining the preliminary scope of works and reaching a rough estimation on the quantity of works with reference from the MBIS materials, OC A then makes use of the Reference Unit Rate of Typical Works Items to formulate a budget which is comprehensible to all owners.

 

(As of Q1, 2019)

Works item

Quantity

 

(A)

Reference unit rate (Average) ($)

(B)

Reference unit rate (Range)($)

 

Sub-total($)

 

(C) = (A) x (B)

Scaffolding 1,000 m2 228 185 - 270 228,000
Repair Works for External Rendering 100 m2 520 310 - 730 52,000
Renovation Works for External Wall Paints 1,000 m2 195 145 - 245 195,000
Communal Condensated Water Disposal Pipes for Air-Conditioners with fittings; uPVC 15 m x 8 stalks 288 140 - 435 34,560
Repair Works for Concrete Structure 50 m2 1,400 660 - 2,140 70,000
Replacement Works for Public Wooden Doors and Frames; Single Leaf (FRR not less than 1 hour) 10 no. 5,800 5,000 - 6,600 58,000
External Soil and Waste Water Disposal Pipes; complete with vent and branch pipes with fittings; uPVC 15 m x 8 stalks 590 430 - 750 70,800
External Rainwater Disposal Pipes with fittings; uPVC 15 m x 1 stalk 340 200 - 480 5,100
CCTV Survey of Underground Drains, including High Pressure Water Jetting and Survey Report Item (40 Flats or below) 14,400 8,800 - 20,000 14,400
Replacement Works for Windows at Staircases (FRR not less than half hour) 10 no. 3,900 3,100 - 4,700 39,000
Renovation Works for Internal Wall Paints at Public Areas 300 m2 90 60 - 120 27,000
Repair Works for Internal Rendering 30 m2 325 120 - 530 9,750
    Sub-total (D): 803,610
Site Preparation and Preliminaries (E) = [ (D) x  15% ] : 120,542
  Grand total (D+E): 924,152
 

Prelminary budget:

(As of Q1, 2019)

930,000*
* For ease of use and presentation, the preliminary budget could be rounding up to 2 significant figures while formulating budget.

 

There are various factors affecting the cost of rehabilitation works, in addition, OC A is applying a general knowledge in defining preliminary scope of works and its quantity, which may not accurately reflect the genuine needs. Therefore, the indicative budget should not be seen as the sole indicator in assessing future cost plans produced by professional and returned tender prices.


For example, work contractors are experienced in different scopes of works, and therefore tender submissions often reflect their relevant expertise, business focus, specific project designs and implementation, as well as current market condition. As a result, the returned tender prices of certain items from some contractors may deviate from the market price. In view of this, when the indicative budget is adopted as a benchmark during tender assessment, it is advisable to compare the "Grand Total" and avoid focusing on the price of individual items.


It is also worth noting that when producing cost plans and assessing returned tenders, advice and assistance from qualified consultants / building professionals should always be sought.

 

2) Understanding tender Assessment

While reviewing the tender assessment report submitted by works consultant, owners may refer to the cost reference provided by this webpage, to examine whether the returned tender prices are deviated from prevailing market price, and making enquiries to works consultant for the possible causes, in order to get a thorough understanding of the returned bids and market condition.

 

 

More details about the Reference Unit Rate of Typical works items and their application are available in the information sheet below:
 

 

 

 

Disclaimer:

The above information is for general reference only. No express or implied warranty is given to the accuracy or completeness of the above information or its appropriateness for use in any particular circumstances. URA is not responsible for any loss or damages whatsoever arising from any cause whatsoever in connection with the above information or with this web site. URA reserves the right to make any amendment to the above information.

 

The Owners' Corporation (OC) / owners should bear in mind that the building rehabilitation cost is affected by various factors including but not limited to the scope of works and the scale of repair items, building size, building conditions and its state of maintenance and repair, choice of building materials used, and the prevailing market conditions of the trade, etc. In appointing suitable registered contractors, OCs / owners should obtain tender quotations from different registered contractors in an open tender for cost reference and analysis under proper professional cost advice and guidance from Authorized Person and / or other Building Professionals.