# RECORD e8f48e7e91bb043c222f2cfbe026c67e0e422a5f # TITLE: Valuing Neighbourhood Soundscapes in Urban Housing Markets: Evidence from Karachi # YEAR: 2026.0 VENUE: Pakistan Development Review DOI: 10.30541/v64i3pp.241-261 # AUTHORS: Ghamz E. Ali Siyal; Heman Das Lohano; Johane Dikgang; Ayesha Zia # PAGES: 21 CANDIDATE TABLE PAGES (1-based): [11, 12, 16, 17] # ABSTRACT: Noise pollution in Karachi has already exceeded WHO-recommended environmental thresholds. It causes sleep disturbances, hearing impairment, stress, and anxiety. However, there is a lack of evidence on how these effects transferred into housing market. This study extends a conceptual framework and empirically explores household data on perceived neighbourhood soundscapes and self-reported housing values. We estimate hedonic pricing models to examine how the presence of natural and non-natural soundscapes around respondent’s residence affects housing values.  This study conducted a primary data survey of 507 respondents affiliated with the Institute of Business Administration (IBA), Karachi. Using hedonic regression results, this study is the first to confirm the effect of natural and non-natural soundscapes on housing values, along with structural, locational, and neighbourhood attributes. The results recommend designing and installing soundproof windows in homes and developing better urban planning and management policies to ensure a good quality of life in Karachi.  ===== PAGE 1 (score 9, numeric-paren 0, table-words 0, var-words 9) ===== © The Pakistan Development Review 64:3 (2025) pp. 241–261 DOI: 10.30541/v64i3pp.241-261 Published online: 24 July,2026 Valuing Neighbourhood Soundscapes in Urban Housing Markets: Evidence from Karachi GHAMZ E ALI SIYAL1, HEMAN DAS LOHANO, JOHANE DIKGANG, and AYESHA ZIA Received: 16 October 2025/ Accepted: 23 June 2026 Noise pollution in Karachi has already exceeded WHO-recommended environmental thresholds. It causes sleep disturbances, hearing impairment, stress, and anxiety. However, there is a lack of evidence on how these effects transferred into housing market. This study extends a conceptual framework and empirically explores household data on perceived neighbourhood soundscapes and self-reported housing values. We estimate hedonic pricing models to examine how the presence of natural and non-natural soundscapes around respondent’s residence affects housing values. This study conducted a primary data survey of 507 respondents affiliated with the Institute of Business Administration (IBA), Karachi. Using hedonic regression results, this study is the first to confirm the effect of natural and non-natural soundscapes on housing values, along with structural, locational, and neighbourhood attributes. The results recommend designing and installing soundproof windows in homes and developing better urban planning and management policies to ensure a good quality of life in Karachi. JEL Classification: R21, R31, R23, Q53, I18, Q51 Keywords: Natural Soundscapes, Non-natural Soundscapes, Noise Pollution, Proximity to Amenities, Neighbourhood Characteristics, Housing Market Values. 1. INTRODUCTION Megacities in Pakistan, for instance Karachi, have witnessed environmental degradation such as reduction of green spaces as a negative externality due to unplanned and unmanaged urbanisation (Asian Development Bank, 2024 Mehdi, et al. 2011, Qureshi, et al. 2010). The presence of green spaces is well-documented to provide benefits to human health and mental well-being via interaction with nature (Alvarsson, et al. 2010, Hedblom, et al. 2014, Uebel, et al. 2022). The possible pathways of such interactions are based on visual stimuli and soundscapes that are responsible for improving human health and mental well-being (Ratcliffe 2013, Smalley, et al. 2022). In particular, bird sounds are 1 Ghamz E Ali Siyal < gasiyal@iba.edu.pk> is Assistant Professor, Institute of Business Administration (IBA), Karachi, and Former Postdoctoral Researcher, Department of Economics and Finance/The Water School, Florida Gulf Coast University (FGCU), Fort Myers, Zip code 33967, Florida, USA. Heman Das Lohano < hlohano@iba.edu.pk> is Professor, School of Economics and Social Sciences (SESS), Institute of Business Administration (IBA), Karachi and Visiting Professor, Department of Applied Economics, University of Minnesota. Johane Dikgang < jdikgang@fgcu.edu> is Associate Professor, Department of Economics and Finance/The Water School, Florida Gulf Coast University (FGCU), Fort Myers, Zip code 33967, Florida, USA. Ayesha Zia < ayeshazia@iba.edu.pk> is Assistant Professor, School of Economics and Social Sciences (SESS), Institute of Business Administration (IBA), Karachi. Authors’ Note: We are grateful to acknowledge the financial support provided by the Competitive Research Grant (CRG) of the Institute of Business Administration (IBA), Karachi. The authors also sincerely thank Mr. Muhammad Nawaz, Mr. Abdul Qadeer, Mr. Dolat Kumar, and Mr. Muhammad Saad for volunteering their assistance in supervising data collection while serving as the graduate students at the IBA, Karachi. ===== PAGE 11 (score 60, numeric-paren 40, table-words 3, var-words 10) ===== Valuing Soundscapes and Neighborhood Quality in Urban Housing Markets 251 The identification strategy used in this study is a regression model. For robustness of results, we used two models which have only slight difference in structural attributes. Both models follow empirical Equation 2, but only the number of restrooms is added in place of the number of bedrooms. The details of results from both models are given in the next section. 6. RESULTS In this section, the regression model includes a large number of explanatory variables compared to the sample size for capturing a wide range of housing, neighbourhood, and environment characteristics given in Table 1. Despite rich number of variables, it is possible that our analysis may have potential omitted variables and other sources of bias in our estimated coefficients. Therefore, results analysis should be interpreted as associations rather than causal effects. Secondly, these models’ results are based on housing value perceptions among the respondents affiliated with the Institute of Business Administration (IBA) that may not accurately reflect urban population of Karachi. For multicollinearity, we found moderate or low multicollinearity among variables for both models. Results of Variance Inflation Factor (VIF) for both models are given in the Appendix 2. Full regression results of both models are given in the Appendix 1 and abridged results are given in the following Table 2. Table 2 Regression Results for Hedonic Model (1) (2) Variables Log (house value) Log (house value) Structural Attributes Number of Bedrooms 0.19084*** (0.01905) Number of Restrooms 0.22406*** (0.01556) Solar 0.19034** 0.15393* (0.08700) (0.07881) Gas 0.27690*** 0.25384*** (0.10152) (0.09281) Water Supply 0.30605*** 0.21211*** (0.08358) (0.07702) Locational Attributes Commercial -0.32337*** -0.20353*** (0.07240) (0.06739) Grocery Store within 1 km 0.17134** 0.12619* (0.07043) (0.06453) School within 1 km -0.19937*** -0.22155*** (0.07551) (0.06892) Police Station within 1 km 0.02213 0.14729* (0.09772) (0.08870) Environmental Attributes Availability of Park within 1 km 0.34378*** 0.29760*** (0.06762) (0.06208) Neighbourhood & Soundscape Attributes Friendly Neighbourhood -0.14998* -0.10355 (0.08965) (0.08213) Hear birds often -0.22090** -0.16602** ===== PAGE 12 (score 28, numeric-paren 12, table-words 5, var-words 5) ===== 252 Siyal, Lohano, Dikgang & Zia (0.08997) (0.08251) Chowks -0.12687* -0.11883* (0.06910) (0.06324) Constant 15.71325*** 15.64518*** (0.18442) (0.16732) Observations 484 484 R-squared 0.4572 0.5498 Note: Full regression results with insignificant variables of both models are available in Appendix 1. Regression results from Hedonic models given in Table 2 are not causal effects but show positive or negative association with reported housing values by respondents. Table 2 provide insightful findings related to structural attributes, locational attributes, neighbourhood attributes, environmental attributes, soundscape attributes. Our results from both models particularly agree with most of previous literature such as Ahmed, et al. (2020), Wahid, et al. (2023) and other prior hedonic studies conducted in other cities of Pakistan confirming structural, locational, neighbourhood attributes effects on housing values. The important contribution of this study lies in investigating the relationship of new attributes from environmental, neighbourhood, and soundscape attributes to housing values. However, the coefficients are found to be higher than previous studies. The R- square from second models is higher than model 1. It means that explanatory variable “number of restrooms” in second model explain variation in housing values better than “number of bedrooms” in model 1. Presence of more restrooms in a house increases convenience for joint families that could be a possible reason for higher R-square values. 6.1. Structural Attributes Structural attributes increase housing prices significantly. They directly affect a property’s functionality, convenience, and appeal to potential buyers. For instance, access to utilities of gas and water significantly increases house values by 25-27 percent and 21- 30 percent respectively. Considering other structural attributes, the number of bedrooms and restrooms in a house increases house size which positively correlates with house values. We considered both separately because conceptual relationship between both could potentially bias the results. Results describe that with the increase of one additional bedroom and restroom housing values increase by 19 percent and 22 percent, respectively. Comparing model 1 and 2, the key difference is number of bedroom variables in model 1 and number of restrooms is added in model 2. The model 2 has higher R-squared value (0.54) than model 1 (0.46) which suggests that the higher number of restrooms explains a greater proportion in housing values within the sampled households. One of potential reasons behind this is number of bedrooms usually varies less across houses of similar size, but the presence of additional restrooms may indicate higher household convenience especially in joint family system. This makes quite sense as there are differences in rent and housing values in the actual market if we compare, for instance, two bedrooms with a three-bedroom house or an apartment with an additional restroom. Along with that, houses which have access to solar systems have 15 to 19 percent higher property values than who don’t have it. In this case, solar acts as an asset and it reflects some income effect. People with solar systems are living in houses with significant differences in property values as compared to people who don’t have solar supported electricity supply. Therefore, having a solar system in a house has higher value compared to those who don’t have it. ===== PAGE 13 (score 13, numeric-paren 0, table-words 0, var-words 13) ===== Valuing Soundscapes and Neighborhood Quality in Urban Housing Markets 253 6.2. Locational Attributes Locational attributes are also related to housing values as mentioned in the literature. We found only three important factors from locational attributes which affect housing values. Firstly, residential type affects housing values. For example, housing values decrease by 20 to 33 percent if these are in a commercial area as compared to residential areas. Homes located in commercial areas are generally less desirable for residential purposes due to noise, pollution, and a lack of privacy. In a city like Karachi, a house situated in a busy commercial area like Saddar might be less appealing to families looking for a quiet residential environment. In contrast, homes in purely residential areas like Gulshan-e-Iqbal or DHA tend to be more valuable, as they offer a more peaceful and family-friendly atmosphere.Secondly, the presence of a school near to respondent’s house reduces its value. Results show that houses that have access to schools within 1 km have 19 to 22 percent lower housing values as compared to houses far from schools. It is a surprising result but a potential reason for that can be associated with traffic jams that increase delays while commuting. Similar results are found in Ahmed, et al. 2020, where presence of higher number of schools and hospitals reduces housing values in nearby surroundings by 9 percent and 13 percent, respectively. The potential reason provided by Ahmed, et al. 2020, is congestion and overcrowded areas. Therefore, our results show negative school proximity effect, ranging from –19 to –22 percent, is significantly larger than most other proximity variables in the model. This indicates that the congestion externality has a substantial economic impact rather than being marginal. Thirdly, unlike schools, locational amenities such as grocery stores and police station have longer and flexible operating hours which can be potential reason for less traffic congestion and positive effects on housing values. Similarly, access to grocery stores is also an important factor that affects housing values. Results found that people who live near grocery stores, i.e., within 1 Km, have 12 to 17 percent higher housing values than their counterparts, i.e., who live more than 1 Km away. Its potential reason can be people consider access to nearby grocery stores so that it saves the time required in fulfilling daily necessities. In addition, access to police station within 1 km increases house values by 14 percent as compared to houses away from 1 km in model 2. 6.3. Environmental Attributes Results from the environmental attributes also describe unique relationship with housing values. Results show that housing values increase by 29 to 34 percent if people have access to a park within 1 km of their house. Many people love to stay in a peaceful environment, and parks are the best place for this. Living closer to a park enhances the quality of life by offering residents a place to relax, exercise, and enjoy nature, making nearby properties more desirable. However, environmental pollution related to frequent choking of sewage, open air dumping, and open air burning of trash does not have significant effect on housing values. One potential reason for insignificant results is that the sample of respondents does not find such problems in their locality. Secondly, we have a sample of respondents that are affiliated with IBA institution that may not fully represent households across Karachi. The sample may also have similar income levels. Thirdly, the effect of these disamenities such as open-air dumping or burning of trash may affect housing values if respondent is living next to it. Respondents living very close to these sites may have higher exposure to negative visual stimuli by watching such sites or odor smells have effect housing values. However, our sample may not have respondents very close or next to these sites. ===== PAGE 16 (score 79, numeric-paren 55, table-words 1, var-words 15) ===== 256 Siyal, Lohano, Dikgang & Zia APPENDIX Table 3 Appendix 1: Full Regression Results Model 1 and 2 Variables (1) (2) Log (house value) Log (house value) Structural Attributes Number of Bedrooms 0.19084*** (0.01905) Number of Restrooms 0.22406*** (0.01556) Solar 0.19034** 0.15393* (0.08700) (0.07881) Gas 0.27690*** 0.25384*** (0.10152) (0.09281) Water Supply 0.30605*** 0.21211*** (0.08358) (0.07702) Locational Attributes Commercial -0.32337*** -0.20353*** (0.07240) (0.06739) Grocery Store within 1 km 0.17134** 0.12619* (0.07043) (0.06453) School within 1 km -0.19937*** -0.22155*** (0.07551) (0.06892) College within 1 km 0.17704 0.10853 (0.11147) (0.10220) University within 1 km -0.06739 -0.04698 (0.13293) (0.12162) Hospital within 1 km 0.08957 0.04538 (0.08688) (0.07950) Bus stop within1 km -0.06862 -0.03853 (0.07352) (0.06703) Police Station within 1 km 0.02213 0.14729* (0.09772) (0.08870) Railway Station within 1 km -0.22920 -0.28402 (0.27549) (0.25189) Airport within 1 km -0.08662 -0.17339 (0.36110) (0.33029) Post office within 1 km 0.04187 0.02894 (0.11913) (0.10902) Bank within 1 km 0.04841 0.02741 (0.06972) (0.06369) Environmental Attributes Trees 0.09482 0.06448 (0.07637) (0.06997) Availability of Park within 1 km 0.34378*** 0.29760*** (0.06762) (0.06208) Open Air Waste Dump within 1 km 0.02968 0.03656 (0.07530) (0.06888) Open Air Burning of Waste -0.10674 -0.07552 ===== PAGE 17 (score 58, numeric-paren 35, table-words 3, var-words 10) ===== Valuing Soundscapes and Neighborhood Quality in Urban Housing Markets 257 (0.06896) (0.06306) Choked Sewer pipes -0.04820 -0.05673 (0.06954) (0.06356) Neighbourhood & Soundscape Attributes Poor roads 0.02837 0.02430 (0.07313) (0.06693) Streetlight -0.02707 -0.00476 (0.08168) (0.07479) No garbage Collection -0.17426 -0.17237 (0.23352) (0.21370) Crime -0.11143 -0.09445 (0.06979) (0.06385) Respect Neighbourhood 0.12975 0.12689 (0.08700) (0.07959) Trust Neighbourhood 0.02358 -0.00760 (0.09925) (0.09089) Friendly Neighbourhood -0.14998* -0.10355 (0.08965) (0.08213) Hear Birds often -0.22090** -0.16602** (0.08997) (0.08251) Hear Traffic often 0.03630 0.02107 (0.06815) (0.06227) Hear Construction often 0.04938 0.03640 (0.06699) (0.06132) Chowks -0.12687* -0.11883* (0.06910) (0.06324) Constant 15.71325*** 15.64518*** (0.18442) (0.16732) Observations 484 484 R-squared 0.4625 0.5498 Table 4 Appendix 2: Model 1 Variance Inflation Factor (VIF) VIF 1/VIF Trust Neighbourhood 1.599 .625 Friendly Neighbourhood 1.576 .635 Respect Neighbourhood 1.524 .656 Distance Rail within 1 km 1.448 .691 Distance Airport within 1 km 1.394 .717 Distance School within 1 km 1.393 .718 Water Supply 1.369 .73 Distance College within 1 km 1.35 .741 Gas 1.349 .741 No Sweeping 1.339 .747 Poor Road 1.331 .751 Distance Bus Stop within 1 km 1.329 .753 Distance Post Office within 1 km 1.326 .754 Distance Bank 1 km 1.27 .788 Number of Bedrooms 1.269 .788 Distance Hospital within 1 km 1.265 .791 Distance Police within 1 km 1.264 .791 ===== PAGE 18 (score 18, numeric-paren 0, table-words 1, var-words 12) ===== 258 Siyal, Lohano, Dikgang & Zia Distance Kachra 1 km 1.263 .792 Witness Burning 1.24 .807 Witness Choked pipes 1.237 .808 Distance Grocery within 1 km 1.234 .81 Streetlight 1.233 .811 Hear Traffic Frequently 1.194 .837 Distance Park within 1 km 1.192 .839 Noisy Chowks 1.188 .842 Crime 1.166 .857 Solar 1.156 .865 No Garbage Collection 1.154 .867 Distance University within 1 km 1.141 .877 Hear Construction Frequently 1.134 .882 Trees 1.131 .884 Commercial 1.127 .888 Hear Birds Frequently 1.096 .912 Mean VIF 1.281 . Table 5 Appendix 2: Model 2 Variance Inflation factor (VIF) VIF 1/VIF Trust Neighbourhood 1.601 .625 Friendly Neighbourhood 1.579 .633 Respect Neighbourhood 1.522 .657 Distance Rail within 1km 1.445 .692 Distance Airport within 1km 1.392 .718 Water Supply 1.388 .72 Distance School within 1km 1.385 .722 Distance College within 1km 1.355 .738 Gas 1.346 .743 No Sweeping 1.338 .747 Poor Road 1.331 .751 Distance Post Office within 1km 1.325 .754 Distance Bus Stop within 1km 1.319 .758 Number of Rest Room or Washrooms 1.308 .764 Distance Bank within 1km 1.265 .79 Distance Hospital within 1km 1.264 .791 Distance Kachra within 1km 1.262 .793 Distance Police within 1km 1.244 .804 Witness Burning 1.238 .808 Distance Grocery within 1km 1.237 .808 Witness Choked Pipes 1.234 .81 Streetlight 1.234 .81 Distance Park within 1km 1.2 .834 Hear Traffic Frequently 1.19 .84 Noisy Chowks 1.188 .842 Crime 1.166 .858 Commercial 1.165 .858 No Garbage Collection 1.153 .867